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Ling S, Luque Fernandez MA, Quaresma M, Belot A, Rachet B. Inequalities in treatment among patients with colon and rectal cancer: a multistate survival model using data from England national cancer registry 2012-2016. Br J Cancer 2024; 130:88-98. [PMID: 37741899 PMCID: PMC10781675 DOI: 10.1038/s41416-023-02440-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 09/07/2023] [Accepted: 09/13/2023] [Indexed: 09/25/2023] Open
Abstract
BACKGROUND Individual and tumour factors only explain part of observed inequalities in colorectal cancer survival in England. This study aims to investigate inequalities in treatment in patients with colorectal cancer. METHODS All patients diagnosed with colorectal cancer in England between 2012 and 2016 were followed up from the date of diagnosis (state 1), to treatment (state 2), death (state 3) or censored at 1 year after the diagnosis. A multistate approach with flexible parametric model was used to investigate the effect of income deprivation on the probability of remaining alive and treated in colorectal cancer. RESULTS Compared to the least deprived quintile, the most deprived with stage I-IV colorectal cancer had a lower probability of being alive and treated at all the time during follow-up, and a higher probability of being untreated and of dying. The probability differences (most vs. least deprived) of being alive and treated at 6 months ranged between -2.4% (95% CI: -4.3, -1.1) and -7.4% (-9.4, -5.3) for colon; between -2.0% (-3.5, -0.4) and -6.2% (-8.9, -3.5) for rectal cancer. CONCLUSION Persistent inequalities in treatment were observed in patients with colorectal cancer at every stage, due to delayed access to treatment and premature death.
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Affiliation(s)
- Suping Ling
- Inequalities in Cancer Outcome Network (ICON) group, Department of Non-communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, WC1E 7HT, London, United Kingdom.
| | - Miguel-Angel Luque Fernandez
- Inequalities in Cancer Outcome Network (ICON) group, Department of Non-communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, WC1E 7HT, London, United Kingdom
| | - Manuela Quaresma
- Inequalities in Cancer Outcome Network (ICON) group, Department of Non-communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, WC1E 7HT, London, United Kingdom
| | - Aurelien Belot
- Inequalities in Cancer Outcome Network (ICON) group, Department of Non-communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, WC1E 7HT, London, United Kingdom
| | - Bernard Rachet
- Inequalities in Cancer Outcome Network (ICON) group, Department of Non-communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, WC1E 7HT, London, United Kingdom
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Yu XQ, Goldsbury D, Feletto E, Koh CE, Canfell K, O'Connell DL. Socioeconomic disparities in colorectal cancer survival: contributions of prognostic factors in a large Australian cohort. J Cancer Res Clin Oncol 2021; 148:2971-2984. [PMID: 34822016 PMCID: PMC8614213 DOI: 10.1007/s00432-021-03856-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 11/10/2021] [Indexed: 12/24/2022]
Abstract
Purpose We quantified the contributions of prognostic factors to socioeconomic disparities in colorectal cancer survival in a large Australian cohort. Methods The sample comprised 45 and Up Study participants (recruited 2006–2009) who were subsequently diagnosed with colorectal cancer. Both individual (education attained) and neighbourhood socioeconomic measures were used. Questionnaire responses were linked with cancer registrations (to December 2013), records for hospital inpatient stays, emergency department presentations, death information (to December 2015), and Medicare and Pharmaceutical Benefits claims for subsidised procedures and medicines. Proportions of socioeconomic survival differences explained by prognostic factors were quantified using multiple Cox proportional hazards regression. Results 1720 eligible participants were diagnosed with colorectal cancer after recruitment: 1174 colon and 546 rectal cancers. Significant colon cancer survival differences were only observed for neighbourhood socioeconomic measure (p = 0.033): HR = 1.55; 95% CI 1.09–2.19 for lowest versus highest quartile, and disease-related factors explained 95% of this difference. For rectal cancer, patient- and disease-related factors were the main drivers of neighbourhood survival differences (28–36%), while these factors and treatment-related factors explained 24–41% of individual socioeconomic differences. However, differences remained significant for rectal cancer after adjusting for all these factors. Conclusion In this large contemporary Australian cohort, we identified several drivers of socioeconomic disparities in colorectal cancer survival. Understanding of the role these contributors play remains incomplete, but these findings suggest that improving access to optimal care may significantly reduce these survival disparities.
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Affiliation(s)
- Xue Qin Yu
- The Daffodil Centre, The University of Sydney, a joint venture with Cancer Council New South Wales, Kings Cross, P O Box 572, Sydney, NSW, 1340, Australia.
| | - David Goldsbury
- The Daffodil Centre, The University of Sydney, a joint venture with Cancer Council New South Wales, Kings Cross, P O Box 572, Sydney, NSW, 1340, Australia
| | - Eleonora Feletto
- The Daffodil Centre, The University of Sydney, a joint venture with Cancer Council New South Wales, Kings Cross, P O Box 572, Sydney, NSW, 1340, Australia
| | - Cherry E Koh
- Department of Colorectal Surgery, Royal Prince Alfred Hospital, Sydney, NSW, Australia
- Discipline of Surgery, Central Clinical School, The University of Sydney, Sydney, NSW, Australia
| | - Karen Canfell
- The Daffodil Centre, The University of Sydney, a joint venture with Cancer Council New South Wales, Kings Cross, P O Box 572, Sydney, NSW, 1340, Australia
- Prince of Wales Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - Dianne L O'Connell
- The Daffodil Centre, The University of Sydney, a joint venture with Cancer Council New South Wales, Kings Cross, P O Box 572, Sydney, NSW, 1340, Australia
- School of Medicine and Public Health, University of Newcastle, Newcastle, NSW, Australia
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Woods LM, Rachet B, Morris M, Bhaskaran K, Coleman MP. Are socio-economic inequalities in breast cancer survival explained by peri-diagnostic factors? BMC Cancer 2021; 21:485. [PMID: 33933034 PMCID: PMC8088027 DOI: 10.1186/s12885-021-08087-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 03/23/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Patients living in more deprived localities have lower cancer survival in England, but the role of individual health status at diagnosis and the utilisation of primary health care in explaining these differentials has not been widely considered. We set out to evaluate whether pre-existing individual health status at diagnosis and primary care consultation history (peri-diagnostic factors) could explain socio-economic differentials in survival amongst women diagnosed with breast cancer. METHODS We conducted a retrospective cohort study of women aged 15-99 years diagnosed in England using linked routine data. Ecologically-derived measures of income deprivation were combined with individually-linked data from the English National Cancer Registry, Clinical Practice Research Datalink (CPRD) and Hospital Episodes Statistics (HES) databases. Smoking status, alcohol consumption, BMI, comorbidity, and consultation histories were derived for all patients. Time to breast surgery was derived for women diagnosed after 2005. We estimated net survival and modelled the excess hazard ratio of breast cancer death using flexible parametric models. We accounted for missing data using multiple imputation. RESULTS Net survival was lower amongst more deprived women, with a single unit increase in deprivation quintile inferring a 4.4% (95% CI 1.4-8.8) increase in excess mortality. Peri-diagnostic co-variables varied by deprivation but did not explain the differentials in multivariable analyses. CONCLUSIONS These data show that socio-economic inequalities in survival cannot be explained by consultation history or by pre-existing individual health status, as measured in primary care. Differentials in the effectiveness of treatment, beyond those measuring the inclusion of breast surgery and the timing of surgery, should be considered as part of the wider effort to reduce inequalities in premature mortality.
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Affiliation(s)
- Laura M Woods
- Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel St, London, WC1E 7HT, UK.
| | - Bernard Rachet
- Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel St, London, WC1E 7HT, UK
| | - Melanie Morris
- Department of Health Services Research and Policy, Faculty of Public Health and Policy London School of Hygiene & Tropical Medicine, 15-17 Tavistock Place, London, WC1H 9SH, UK
| | - Krishnan Bhaskaran
- Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel St, London, WC1E 7HT, UK
| | - Michel P Coleman
- Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel St, London, WC1E 7HT, UK
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Rosskamp M, Verbeeck J, Sass V, Gadeyne S, Verdoodt F, De Schutter H. Social Inequalities in Cancer Survival in Belgium: A Population-Based Cohort Study. Cancer Epidemiol Biomarkers Prev 2020; 30:45-52. [PMID: 33082205 DOI: 10.1158/1055-9965.epi-20-0721] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/28/2020] [Accepted: 10/09/2020] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Socioeconomic status (SES) is an important factor in cancer survival; however, results are heterogeneous and linked to characteristics of the study population and health care system. This population-based cohort study evaluates the association between individual-level socioeconomic and demographic factors and cancer survival for the first time in Belgium. METHODS From the Belgian Cancer Registry, we identified 109,591 patients diagnosed between 2006 and 2013 with one of eight common cancer types. Information on treatment, socioeconomic parameters, and vital status were retrieved from multiple data sources and linked using a unique personal identification number. The outcome was 5-year observed survival. Associations between survival and socioeconomic and demographic factors were assessed using multivariable Cox proportional-hazard regression models. RESULTS Lower income, unemployment, and living alone were all associated with worse cancer survival. These associations were most pronounced for certain lifestyle-related cancer types (e.g., head and neck cancers) and those with good to moderate prognosis (e.g., colorectal and female breast cancer). CONCLUSIONS These results indicate that, despite a comprehensive and nationwide health insurance program in which equity in rights and access to health care are pursued, SES is associated with disparities in cancer survival in Belgium. IMPACT This population-based study with individual-level socioeconomic information of more than 100,000 patients with cancer identifies patient groups that may be at highest risk for socioeconomic disparities in cancer survival. Reasons behind the observed disparities are multiple and complex and should be further examined. Health policy interventions should consider the observed deprivation gap to plan targeted actions.
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Affiliation(s)
| | | | - Victoria Sass
- Department of Sociology, Interface Demography, Vrije Universiteit Brussel, Brussels, Belgium.,Department of Sociology, University of Washington, Seattle, Washington
| | - Sylvie Gadeyne
- Department of Sociology, Interface Demography, Vrije Universiteit Brussel, Brussels, Belgium
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Geographical variations in cancer mortality and social inequalities in southern Spain (Andalusia). 2002-2013. PLoS One 2020; 15:e0233397. [PMID: 32442187 PMCID: PMC7244163 DOI: 10.1371/journal.pone.0233397] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 05/04/2020] [Indexed: 01/22/2023] Open
Abstract
INTRODUCTION Geographical variations in cancer mortality can be explained, in part, by their association with social inequalities. The objective of our study was to analyse the spatial pattern of mortality in relation to the most common causes of cancer in the Spanish autonomous community of Andalusia and its possible association with social inequalities. MATERIALS AND METHODS A small area cross-sectional study in Andalusia, with census tracts as units of spatial analysis, for the period 2002-2013. Cases and person-years, sex and age group came from the Longitudinal Population Database of Andalusia. Standardized mortality rates and smoothed risk ratios were calculated using the Besag, York and Mollié model for lung, colorectal, breast, prostate, bladder and stomach cancer. In order to evaluate the association with social inequalities we included the deprivation index of the census tract as a covariate. RESULTS The results show an East-West mortality pattern with higher risk in the west for lung and bladder cancer among men, and breast cancer among women. For all of Andalusia, the association between deprivation index of the census tract and mortality relative risks is positive and significant for lung, stomach and bladder cancers in men, while in women we observed a negative association for lung cancer and a positive for stomach cancer. CONCLUSIONS Knowledge regarding the spatial distribution of cancer mortality and the socioeconomic inequalities related should contribute to the design of specific health and social policies-aimed at tackling cancer mortality and social inequalities in areas of high mortality and/or levels of deprivation.
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van den Berg I, Buettner S, van den Braak RRJC, Ultee KHJ, Lingsma HF, van Vugt JLA, Ijzermans JNM. Low Socioeconomic Status Is Associated with Worse Outcomes After Curative Surgery for Colorectal Cancer: Results from a Large, Multicenter Study. J Gastrointest Surg 2020; 24:2628-2636. [PMID: 31745899 PMCID: PMC7595960 DOI: 10.1007/s11605-019-04435-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 10/19/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Socioeconomic status (SES) has been associated with early mortality in cancer patients. However, the association between SES and outcome in colorectal cancer patients is largely unknown. The aim of this study was to investigate whether SES is associated with short- and long-term outcome in patients undergoing curative surgery for colorectal cancer. METHODS Patients who underwent curative surgery in the region of Rotterdam for stage I-III colorectal cancer between January 2007 and July 2014 were included. Gross household income and survival status were obtained from a national registry provided by Statistics Netherlands Centraal Bureau voor de Statistiek. Patients were assigned percentiles according to the national income distribution. Logistic regression and Cox proportional hazard regression were performed to assess the association of SES with 30-day postoperative complications, overall survival and cancer-specific survival, adjusted for known prognosticators. RESULTS For 965 of the 975 eligible patients (99%), gross household income could be retrieved. Patients with a lower SES more often had diabetes, more often underwent an open surgical procedure, and had more comorbidities. In addition, patients with a lower SES were less likely to receive (neo) adjuvant treatment. Lower SES was independently associated with an increased risk of postoperative complications (Odds ratio per percent increase 0.99, 95%CI 0.99-0.998, p = 0.004) and lower cancer-specific mortality (Hazard ratio per percent increase 0.99, 95%CI 0.98-0.99, p = 0.009). CONCLUSION This study shows that lower SES is associated with increased risk of postoperative complications, and poor cancer-specific survival in patients undergoing surgery for stage I-III colorectal cancer after correcting for known prognosticators.
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Affiliation(s)
- I. van den Berg
- Department of Surgery, Erasmus MC - University Medical Center, Rotterdam, The Netherlands
| | - S. Buettner
- Department of Surgery, Erasmus MC - University Medical Center, Rotterdam, The Netherlands
| | | | - K. H. J. Ultee
- Department of Surgery, Erasmus MC - University Medical Center, Rotterdam, The Netherlands
| | - H. F. Lingsma
- Department of Public Health, Erasmus MC - University Medical Center, Rotterdam, The Netherlands
| | - J. L. A. van Vugt
- Department of Surgery, Erasmus MC - University Medical Center, Rotterdam, The Netherlands
| | - J. N. M. Ijzermans
- Department of Surgery, Erasmus MC - University Medical Center, Rotterdam, The Netherlands
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Syriopoulou E, Morris E, Finan PJ, Lambert PC, Rutherford MJ. Understanding the impact of socioeconomic differences in colorectal cancer survival: potential gain in life-years. Br J Cancer 2019; 120:1052-1058. [PMID: 31040385 PMCID: PMC6738073 DOI: 10.1038/s41416-019-0455-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 03/28/2019] [Accepted: 03/29/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Colorectal cancer prognosis varies substantially with socioeconomic status. We investigated differences in life expectancy between socioeconomic groups and estimated the potential gain in life-years if cancer-related survival differences could be eliminated. METHODS This population-based study included 470,000 individuals diagnosed with colon and rectal cancers between 1998 and 2013 in England. Using flexible parametric survival models, we obtained a range of life expectancy measures by deprivation status. The number of life-years that could be gained if differences in cancer-related survival between the least and most deprived groups were removed was also estimated. RESULTS We observed up to 10% points differences in 5-year relative survival between the least and most deprived. If these differences had been eliminated for colon and rectal cancers diagnosed in 2013 then almost 8231 and 7295 life-years would have been gained respectively. This results for instance in more than 1-year gain for each colon cancer male patient in the most deprived group on average. Cancer-related differences are more profound earlier on, as conditioning on 1-year survival the main reason for socioeconomic differences were factors other than cancer. CONCLUSION This study highlights the importance of policies to eliminate socioeconomic differences in cancer survival as in this way many life-years could be gained.
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Affiliation(s)
- Elisavet Syriopoulou
- Biostatistics Research Group, Department of Health Sciences, University of Leicester, University Road, LE1 7RH, Leicester, UK.
| | - Eva Morris
- Cancer Epidemiology Group, Institute of Medical Research at St James's and Institute of Data Analytics, University of Leeds, Worsley Building, Leeds, LS2 9JT, UK
| | - Paul J Finan
- Cancer Epidemiology Group, Institute of Medical Research at St James's and Institute of Data Analytics, University of Leeds, Worsley Building, Leeds, LS2 9JT, UK
| | - Paul C Lambert
- Biostatistics Research Group, Department of Health Sciences, University of Leicester, University Road, LE1 7RH, Leicester, UK
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Mark J Rutherford
- Biostatistics Research Group, Department of Health Sciences, University of Leicester, University Road, LE1 7RH, Leicester, UK
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Epidemiologic and Clinical Analysis of Cervical Cancer Using Data from the Population-Based Osaka Cancer Registry. Cancer Res 2019; 79:1252-1259. [DOI: 10.1158/0008-5472.can-18-3109] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/03/2018] [Accepted: 01/07/2019] [Indexed: 11/16/2022]
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Vallance AE, van der Meulen J, Kuryba A, Braun M, Jayne DG, Hill J, Cameron IC, Walker K. Socioeconomic differences in selection for liver resection in metastatic colorectal cancer and the impact on survival. Eur J Surg Oncol 2018; 44:1588-1594. [PMID: 29895508 DOI: 10.1016/j.ejso.2018.05.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 05/02/2018] [Accepted: 05/17/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Socioeconomic inequalities in colorectal cancer (CRC) survival are well recognised. The aim of this study was to describe the impact of socioeconomic deprivation on survival in patients with synchronous CRC liver-limited metastases, and to investigate if any survival inequalities are explained by differences in liver resection rates. METHODS Patients in the National Bowel Cancer Audit diagnosed with CRC between 2010 and 2016 in the English National Health Service were included. Linked Hospital Episode Statistics data were used to identify the presence of liver metastases and whether a liver resection had been performed. Multivariable random-effects logistic regression was used to estimate the odds ratio (OR) of liver resection by Index of Multiple Deprivation (IMD) quintile. Cox-proportional hazards model was used to compare 3-year survival. RESULTS 13,656 patients were included, of whom 2213 (16.2%) underwent liver resection. Patients in the least deprived IMD quintile were more likely to undergo liver resection than those in the most deprived quintile (adjusted OR 1.42, 95% confidence interval (CI) 1.18-1.70). Patients in the least deprived quintile had better 3-year survival (least deprived vs. most deprived quintile, 22.3% vs. 17.4%; adjusted hazard ratio (HR) 1.20, 1.11-1.30). Adjusting for liver resection attenuated, but did not remove, this effect. There was no difference in survival between IMD quintile when restricted to patients who underwent liver resection (adjusted HR 0.97, 0.76-1.23). CONCLUSIONS Deprived CRC patients with synchronous liver-limited metastases have worse survival than more affluent patients. Lower rates of liver resection in more deprived patients is a contributory factor.
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Affiliation(s)
- A E Vallance
- Clinical Effectiveness Unit, Royal College of Surgeons of England, London, UK.
| | - J van der Meulen
- Clinical Effectiveness Unit, Royal College of Surgeons of England, London, UK; Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | - A Kuryba
- Clinical Effectiveness Unit, Royal College of Surgeons of England, London, UK
| | - M Braun
- Christie NHS Foundation Trust, Manchester, UK
| | - D G Jayne
- The John Goligher Colorectal Surgery Unit, Leeds Teaching Hospitals NHS Trust, Leeds, UK; Faculty of Medicine and Health, University of Leeds, Leeds, UK
| | - J Hill
- Department of General Surgery, Manchester Royal Infirmary, Manchester, UK
| | - I C Cameron
- Department of Hepatobiliary and Pancreatic Surgery, Nottingham University Hospital NHS Trust, Nottingham, UK
| | - K Walker
- Clinical Effectiveness Unit, Royal College of Surgeons of England, London, UK; Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
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10
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Systematic review of the influence of socioeconomic deprivation on mortality after colorectal surgery. Br J Surg 2018; 105:959-970. [DOI: 10.1002/bjs.10848] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/25/2018] [Accepted: 02/02/2018] [Indexed: 01/12/2023]
Abstract
Abstract
Background
Socioeconomic deprivation is a potentially important factor influencing surgical outcomes. This systematic review aimed to summarize the evidence for any association between socioeconomic group and mortality after colorectal surgery, and to report the definitions of deprivation used and the approaches taken to adjust for co-morbidity in this patient population.
Methods
MEDLINE, Embase, the Cochrane Library and Web of Science were searched for studies up to November 2016 on adult patients undergoing major colorectal surgery, which reported on mortality according to socioeconomic group. Risk of bias and study quality were assessed by extracting data relating to study size, and variations in inclusion and exclusion criteria. Quality was assessed using a modification of a previously described assessment tool.
Results
The literature search identified 59 studies published between 1993 and 2016, reporting on 2 698 403 patients from eight countries. Overall findings showed evidence for higher mortality in more deprived socioeconomic groups, both in the perioperative period and in the longer term. Studies differed in how they defined socioeconomic groups, but the most common approach was to use one of a selection of multifactorial indices based on small geographical areas. There was no consistent approach to adjusting for co-morbidity but, where this was considered, the Charlson Co-morbidity Index was most frequently used.
Conclusion
This systematic review suggests that socioeconomic deprivation influences mortality after colorectal surgery.
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Fowler H, Belot A, Njagi EN, Luque-Fernandez MA, Maringe C, Quaresma M, Kajiwara M, Rachet B. Persistent inequalities in 90-day colon cancer mortality: an English cohort study. Br J Cancer 2017; 117:1396-1404. [PMID: 28859056 PMCID: PMC5672924 DOI: 10.1038/bjc.2017.295] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 07/31/2017] [Accepted: 08/03/2017] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Variation in colon cancer mortality occurring shortly after diagnosis is widely reported between socio-economic status (SES) groups: we investigated the role of different prognostic factors in explaining variation in 90-day mortality. METHODS National cancer registry data were linked with national clinical audit data and Hospital Episode Statistics records for 69 769 adults diagnosed with colon cancer in England between January 2010 and March 2013. By gender, logistic regression was used to estimate the effects of SES, age and stage at diagnosis, comorbidity and surgical treatment on probability of death within 90 days from diagnosis. Multiple imputations accounted for missing stage. We predicted conditional probabilities by prognostic factor patterns and estimated the effect of SES (deprivation) from the difference between deprivation-specific average predicted probabilities. RESULTS Ninety-day probability of death rose with increasing deprivation, even after accounting for the main prognostic factors. When setting the deprivation level to the least deprived group for all patients and keeping all other prognostic factors as observed, the differences between deprivation-specific averaged predicted probabilities of death were greatly reduced but persisted. Additional analysis suggested stage and treatment as potential contributors towards some of these inequalities. CONCLUSIONS Further examination of delayed diagnosis, access to treatment and post-operative care by deprivation group may provide additional insights into understanding deprivation disparities in mortality.
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Affiliation(s)
- H Fowler
- Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - A Belot
- Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - E N Njagi
- Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - M A Luque-Fernandez
- Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - C Maringe
- Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - M Quaresma
- Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - M Kajiwara
- Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - B Rachet
- Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
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Ireland MJ, March S, Crawford-Williams F, Cassimatis M, Aitken JF, Hyde MK, Chambers SK, Sun J, Dunn J. A systematic review of geographical differences in management and outcomes for colorectal cancer in Australia. BMC Cancer 2017; 17:95. [PMID: 28152983 PMCID: PMC5290650 DOI: 10.1186/s12885-017-3067-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 01/18/2017] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Australia and New Zealand have the highest incidence of colorectal cancer (CRC) in the world, presenting considerable health, economic, and societal burden. Over a third of the Australian population live in regional areas and research has shown they experience a range of health disadvantages that result in a higher disease burden and lower life expectancy. The extent to which geographical disparities exist in CRC management and outcomes has not been systematically explored. The present review aims to identify the nature of geographical disparities in CRC survival, clinical management, and psychosocial outcomes. METHODS The review followed PRISMA guidelines and searches were undertaken using seven databases covering articles between 1 January 1990 and 20 April 2016 in an Australian setting. Inclusion criteria stipulated studies had to be peer-reviewed, in English, reporting data from Australia on CRC patients and relevant to one of fourteen questions examining geographical variations in a) survival outcomes, b) patient and cancer characteristics, c) diagnostic and treatment characteristics and d) psychosocial and quality of life outcomes. RESULTS Thirty-eight quantitative, two qualitative, and three mixed-methods studies met review criteria. Twenty-seven studies were of high quality, sixteen studies were of moderate quality, and no studies were found to be low quality. Individuals with CRC living in regional, rural, and remote areas of Australia showed poorer survival and experienced less optimal clinical management. However, this effect is likely moderated by a range of other factors (e.g., SES, age, gender) and did appear to vary linearly with increasing distance from metropolitan centres. No studies examined differences in use of stoma, or support with stomas, by geographic location. CONCLUSIONS Overall, despite evidence of disparity in CRC survival and clinical management across geographic locations, the evidence was limited and at times inconsistent. Further, access to treatment and services may not be the main driver of disparities, with individual patient characteristics and type of region also playing an important role. A better understanding of factors driving ongoing and significant geographical disparities in cancer related outcomes is required to inform the development of effective interventions to improve the health and welfare of regional Australians.
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Affiliation(s)
- Michael J. Ireland
- Institute of Resilient Regions, University of Southern Queensland, Springfield Central, Australia
- School of Psychology and Counselling, University of Southern Queensland, Springfield Central, Australia
| | - Sonja March
- Institute of Resilient Regions, University of Southern Queensland, Springfield Central, Australia
- School of Psychology and Counselling, University of Southern Queensland, Springfield Central, Australia
| | - Fiona Crawford-Williams
- Institute of Resilient Regions, University of Southern Queensland, Springfield Central, Australia
- School of Psychology and Counselling, University of Southern Queensland, Springfield Central, Australia
| | - Mandy Cassimatis
- Non-communicable Disease Control Unit, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC Australia
| | - Joanne F. Aitken
- Institute of Resilient Regions, University of Southern Queensland, Springfield Central, Australia
- Cancer Research Centre, Cancer Council Queensland, Fortitude Valley, 4006 QLD Australia
- School of Public Health and Social Work, Queensland University of Technology, Brisbane, Australia
- Menzies Health Institute Queensland, Griffith University, Brisbane, QLD Australia
| | - Melissa K. Hyde
- Cancer Research Centre, Cancer Council Queensland, Fortitude Valley, 4006 QLD Australia
- Menzies Health Institute Queensland, Griffith University, Southport, QLD Australia
| | - Suzanne K. Chambers
- Institute of Resilient Regions, University of Southern Queensland, Springfield Central, Australia
- Cancer Research Centre, Cancer Council Queensland, Fortitude Valley, 4006 QLD Australia
- Menzies Health Institute Queensland, Griffith University, Southport, QLD Australia
- Prostate Cancer Foundation of Australia, St Leonards, NSW Australia
- Exercise Medicine Research Institute, Edith Cowan University, Perth, WA Australia
| | - Jiandong Sun
- Institute of Resilient Regions, University of Southern Queensland, Springfield Central, Australia
| | - Jeff Dunn
- Institute of Resilient Regions, University of Southern Queensland, Springfield Central, Australia
- Cancer Research Centre, Cancer Council Queensland, Fortitude Valley, 4006 QLD Australia
- School of Social Science, University of Queensland, Brisbane, Australia
- School of Medicine, Griffith University, Brisbane, QLD Australia
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Antunes L, Mendonça D, Bento MJ, Rachet B. No inequalities in survival from colorectal cancer by education and socioeconomic deprivation - a population-based study in the North Region of Portugal, 2000-2002. BMC Cancer 2016; 16:608. [PMID: 27495309 PMCID: PMC4975888 DOI: 10.1186/s12885-016-2639-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 07/27/2016] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Association between cancer survival and socioeconomic status has been reported in various countries but it has never been studied in Portugal. We aimed here to study the role of education and socioeconomic deprivation level on survival from colorectal cancer in the North Region of Portugal using a population-based cancer registry dataset. METHODS We analysed a cohort of patients aged 15-84 years, diagnosed with a colorectal cancer in the North Region of Portugal between 2000 and 2002. Education and socioeconomic deprivation level was assigned to each patient based on their area of residence. We measured socioeconomic deprivation using the recently developed European Deprivation Index. Net survival was estimated using Pohar-Perme estimator and age-adjusted excess hazard ratios were estimated using parametric flexible models. Since no deprivation-specific life tables were available, we performed a sensitivity analysis to test the robustness of the results to life tables adjusted for education and socioeconomic deprivation level. RESULTS A total of 4,105 cases were included in the analysis. In male patients (56.3 %), a pattern of worse 5- and 10-year net survival in the less educated (survival gap between extreme education groups: -7 % and -10 % at 5 and 10 years, respectively) and more deprived groups (survival gap between extreme EDI groups: -5 % both at 5 and 10 years) was observed when using general life tables. No such clear pattern was found among female patients. In both sexes, when likely differences in background mortality by education or deprivation were accounted for in the sensitivity analysis, any differences in net survival between education or deprivation groups vanished. CONCLUSIONS Our study shows that observed differences in survival by education and EDI level are most likely attributable to inequalities in background survival. Also, it confirms the importance of using the relevant life tables and of performing sensitivity analysis when evaluating socioeconomic inequalities in cancer survival. Comparison studies of different healthcare systems organization should be performed to better understand its influence on cancer survival inequalities.
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Affiliation(s)
- Luís Antunes
- Department of Epidemiology, Portuguese Oncology Institute (IPO Porto), Porto, Portugal
- RORENO - North Region Cancer Registry of Portugal, Porto, Portugal
- Faculty of Sciences, University of Porto, Porto, Portugal
| | - Denisa Mendonça
- EPIUnit – Institute of Public Health – University of Porto (ISPUP), Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
| | - Maria José Bento
- Department of Epidemiology, Portuguese Oncology Institute (IPO Porto), Porto, Portugal
- RORENO - North Region Cancer Registry of Portugal, Porto, Portugal
- UMIB, Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
| | - Bernard Rachet
- Cancer Survival Group, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT UK
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14
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Morris M, Woods LM, Rachet B. What might explain deprivation-specific differences in the excess hazard of breast cancer death amongst screen-detected women? Analysis of patients diagnosed in the West Midlands region of England from 1989 to 2011. Oncotarget 2016; 7:49939-49947. [PMID: 27363022 PMCID: PMC5226559 DOI: 10.18632/oncotarget.10255] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 05/23/2016] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Breast cancer survival is higher in less deprived women, even amongst women whose tumor was screen-detected, but reasons behind this have not been comprehensively investigated. METHODS The excess hazard of breast cancer death in 20,265 women diagnosed with breast cancer, followed up to 2012, was estimated for screen-detected and non-screen-detected women, comparing more deprived to less deprived women using flexible parametric models. Models were adjusted for individual and tumor factors, treatment received and comorbidity. For screen-detected women, estimates were also corrected for lead-time and overdiagnosis. RESULTS The excess hazard ratio (EHR) of breast cancer death in the most deprived group, adjusted only for age and year of diagnosis, was twice that of the least deprived among screen-detected women (EHR=2.12, 95%CI 1.48-2.76) and 64% higher among non-screen-detected women (EHR=1.64, 95%CI 1.41-1.87). Adjustment for stage at diagnosis lowered these estimates by 25%. Further adjustment had little extra impact. In the final models, the excess hazard for the most deprived women was 54% higher (EHR=1.54, 95%CI 1.10-1.98) among screen-detected women and 39% higher (EHR=1.39, 95%CI 1.20-1.59) among non-screen-detected women. CONCLUSION A persistent socio-economic gradient in breast cancer-related death exists in this cohort, even for screen-detected women. The impact of differential lifestyles, management and treatment warrant further investigation.
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Affiliation(s)
- Melanie Morris
- Cancer Research UK Cancer Survival Group, Faculty of Epidemiology and Population Health, Department of Non-Communicable Disease Epidemiology, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK
| | - Laura M. Woods
- Cancer Research UK Cancer Survival Group, Faculty of Epidemiology and Population Health, Department of Non-Communicable Disease Epidemiology, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK
| | - Bernard Rachet
- Cancer Research UK Cancer Survival Group, Faculty of Epidemiology and Population Health, Department of Non-Communicable Disease Epidemiology, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK
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Adam M, Rueegg CS, Schmidlin K, Spoerri A, Niggli F, Grotzer M, von der Weid NX, Egger M, Probst-Hensch N, Zwahlen M, Kuehni CE. Socioeconomic disparities in childhood cancer survival in Switzerland. Int J Cancer 2016; 138:2856-66. [PMID: 26840758 DOI: 10.1002/ijc.30029] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 12/06/2015] [Accepted: 01/08/2016] [Indexed: 11/07/2022]
Abstract
In this study, we investigated whether childhood cancer survival in Switzerland is influenced by socioeconomic status (SES), and if disparities vary by type of cancer and definition of SES (parental education, living condition, area-based SES). Using Cox proportional hazards models, we analyzed 5-year cumulative mortality in all patients registered in the Swiss Childhood Cancer Registry diagnosed 1991-2006 below 16 years. Information on SES was extracted from the Swiss census by probabilistic record linkage. The study included 1602 children (33% with leukemia, 20% with lymphoma, 22% with central nervous system (CNS) tumors); with an overall 5-year survival of 77% (95%CI 75-79%). Higher SES, particularly parents' education, was associated with a lower 5-year cumulative mortality. Results varied by type of cancer with no association for leukemia and particularly strong effects for CNS tumor patients, where mortality hazard ratios for the different SES indicators, comparing the highest with the lowest group, ranged from 0.48 (95%CI: 0.28-0.81) to 0.71 (95%CI: 0.44-1.15). We conclude that even in Switzerland with a high quality health care system and mandatory health insurance, socioeconomic differences in childhood cancer survival persist. Factors causing these survival differences have to be further explored, to facilitate universal access to optimal treatment and finally eliminate social inequalities in childhood cancer survival.
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Affiliation(s)
- Martin Adam
- Swiss Tropical and Public Health Institute, 4002, Basel, Switzerland
- University of Basel, 4001, Basel, Switzerland
- Institute of Social and Preventive Medicine, University of Bern, 3012, Bern, Switzerland
| | - Corina S Rueegg
- Institute of Social and Preventive Medicine, University of Bern, 3012, Bern, Switzerland
- Department of Health Sciences and Health Policy, University of Lucerne, 6002, Lucerne, Switzerland
| | - Kurt Schmidlin
- Institute of Social and Preventive Medicine, University of Bern, 3012, Bern, Switzerland
| | - Adrian Spoerri
- Institute of Social and Preventive Medicine, University of Bern, 3012, Bern, Switzerland
| | - Felix Niggli
- Pediatric Hematology-Oncology Unit, University Children's Hospital Zurich, University of Zurich, 8032, Zurich, Switzerland
| | - Michael Grotzer
- Pediatric Hematology-Oncology Unit, University Children's Hospital Zurich, University of Zurich, 8032, Zurich, Switzerland
| | - Nicolas X von der Weid
- Pediatric Hematology-Oncology Unit, University Children's Hospital Basel, University of Basel, 4056, Basel, Switzerland
| | - Matthias Egger
- Institute of Social and Preventive Medicine, University of Bern, 3012, Bern, Switzerland
| | - Nicole Probst-Hensch
- Swiss Tropical and Public Health Institute, 4002, Basel, Switzerland
- University of Basel, 4001, Basel, Switzerland
| | - Marcel Zwahlen
- Institute of Social and Preventive Medicine, University of Bern, 3012, Bern, Switzerland
| | - Claudia E Kuehni
- Institute of Social and Preventive Medicine, University of Bern, 3012, Bern, Switzerland
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16
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Nur U, Lyratzopoulos G, Rachet B, Coleman MP. The impact of age at diagnosis on socioeconomic inequalities in adult cancer survival in England. Cancer Epidemiol 2015; 39:641-9. [PMID: 26143284 PMCID: PMC4542220 DOI: 10.1016/j.canep.2015.05.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 05/19/2015] [Accepted: 05/21/2015] [Indexed: 11/17/2022]
Abstract
BACKGROUND Understanding the age at which persistent socioeconomic inequalities in cancer survival become apparent may help motivate and support targeting of cancer site-specific interventions, and tailoring guidelines to patients at higher risk. PATIENTS AND METHODS We analysed data on more than 40,000 patients diagnosed in England with one of three common cancers in men and women, breast, colon and lung, 2001-2005 with follow-up to the end of 2011. We estimated net survival for each of the five deprivation categories (affluent, 2, 3, 4, deprived), cancer site, sex and age group (15-44, 45-54, 55-64, and 65-74 and 75-99 years). RESULTS The magnitude and pattern of the age specific socioeconomic inequalities in survival was different for breast, colon and lung. For breast cancer the deprivation gap in 1-year survival widened with increasing age at diagnosis, whereas the opposite was true for lung cancer, with colon cancer having an intermediate pattern. The 'deprivation gap' in 1-year breast cancer survival widened steadily from -0.8% for women diagnosed at 15-44 years to -4.8% for women diagnosed at 75-99 years, and was the widest for women diagnosed at 65-74 years for 5- and 10-year survival. For colon cancer in men, the gap was widest in patients diagnosed aged 55-64 for 1-, 5- and 10-year survival. For lung cancer, the 'deprivation gap' in survival in patients diagnoses aged 15-44 years was more than 10% for 1-year survival in men and for 1- and 5-year survival in women. CONCLUSION Our findings suggest that reduction of socioeconomic inequalities in survival will require updating of current guidelines to ensure the availability of optimal treatment and appropriate management of lung cancer patients in all age groups and older patients in deprived groups with breast or colon cancer.
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Affiliation(s)
- Ula Nur
- Cancer Research UK Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, United Kingdom.
| | - Georgios Lyratzopoulos
- Department of Public Health and Primary Care, University of Cambridge School of Clinical Medicine, Cambridge, United Kingdom
| | - Bernard Rachet
- Cancer Research UK Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, United Kingdom
| | - Michel P Coleman
- Cancer Research UK Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, United Kingdom
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17
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Olsson LI, Granstrom F. Socioeconomic inequalities in relative survival of rectal cancer most obvious in stage III. World J Surg 2015; 38:3265-75. [PMID: 25189440 DOI: 10.1007/s00268-014-2735-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION The association between socioeconomic status (SES) and relative survival of rectal cancer is little investigated. We hypothesized that the impact on risk of death by SES would be much smaller when differences in background mortality (comorbidity, lifestyle factors) were taken into account, i.e. in modelling relative survival of rectal cancer. METHODS Individual data on civil status, education, and income were linked to the Swedish Rectal Cancer Registry 1995-2005 (n = 16,713). Specific life tables by socioeconomic group were used to calculate relative survival, and modelling included age, sex, stage, time period, and SES. The same covariates were applied in a Cox regression based on absolute survival. RESULTS Stage distribution was associated with civil status, education, and income (p < 0.001). In spite of modelling based on relative survival, an increased risk of death was found for all other patients compared with those who were married, as well as for all other patients compared with those with the highest income. The pattern was fundamentally the same as in a Cox regression model, only the point estimates were slightly reduced using the relative approach. In stage-specific modelling of relative survival, income was of particular importance in stage III; the hazard ratio (HR) for lowest versus the highest income was 1.37 [95 % confidence interval (CI) 1.15-1.64]. There were also significant differences by income among patients who had a major surgical resection (stage IV excluded). CONCLUSION Large and clinically relevant socioeconomic inequalities remained in stage-adjusted analyses of relative survival, also in a setting of universal healthcare and no screening program operating.
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Affiliation(s)
- L I Olsson
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska Universitetssjukhuset (L1:00), S-171 76, Stockholm, Sweden,
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18
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Abdel-Rahman ME, Butler J, Sydes MR, Parmar MKB, Gordon E, Harper P, Williams C, Crook A, Sandercock J, Swart AM, Rachet B, Coleman MP. No socioeconomic inequalities in ovarian cancer survival within two randomised clinical trials. Br J Cancer 2014; 111:589-97. [PMID: 24918817 PMCID: PMC4119977 DOI: 10.1038/bjc.2014.303] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 05/09/2014] [Accepted: 05/11/2014] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Ovarian cancer is the leading cause of death among cancers of the female genital tract, with poor outcomes despite chemotherapy. There was a persistent socioeconomic gradient in 1-year survival in England and Wales for more than 3 decades (1971-2001). Inequalities in 5-year survival persisted for more than 20 years but have been smaller for women diagnosed around 2000. We explored one possible explanation. METHODS We analysed data on 1406 women diagnosed with ovarian cancer during 1991-1998 and recruited to one of two randomised clinical trials. In the second International Collaborative Ovarian Neoplasm (ICON2) trial, women diagnosed between 1991 and 1996 were randomised to receive either the three-drug combination cyclophosphamide, doxorubicin and cisplatin (CAP) or single-agent carboplatin given at optimal dose. In the ICON3 trial, women diagnosed during 1995-1998 were randomised to receive either the same treatments as ICON2, or paclitaxel plus carboplatin.Relative survival at 1, 5 and 10 years was estimated for women in five categories of socioeconomic deprivation. The excess hazard of death over and above background mortality was estimated by fitting multivariable regression models with Poisson error structure and a dedicated link function in a generalised linear model framework, adjusting for the duration of follow-up and the confounding effects of age, Federation of Gynecology and Obstetrics (FIGO) stage and calendar period. RESULTS Unlike women with ovarian cancer in the general population, no statistically significant socioeconomic gradient was seen for women with ovarian cancer treated in the two randomised controlled trials. The deprivation gap in 1-year relative survival in the general population was statistically significant at -6.7% (95% CI (-8.1, -5.3)), compared with -3.6% (95% CI (-10.4, +3.2)) in the trial population. CONCLUSIONS Although ovarian cancer survival is significantly lower among poor women than rich women in England and Wales, there was no evidence of an association between socioeconomic deprivation and survival among women with ovarian cancer who were treated and followed up consistently in two well-conducted randomised controlled trials. We conclude that the persistent socioeconomic gradient in survival among women with ovarian cancer, at least for 1-year survival, may be due to differences in access to treatment and standards of care.
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Affiliation(s)
- M E Abdel-Rahman
- Cancer Research UK Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - J Butler
- Royal Marsden Hospital, Fulham Road, London SW3 6JJ, UK
| | - M R Sydes
- MRC Clinical Trials Unit at UCL, Aviation House, 125 Kingsway, London WC2B 6NH, UK
| | - M K B Parmar
- MRC Clinical Trials Unit at UCL, Aviation House, 125 Kingsway, London WC2B 6NH, UK
| | - E Gordon
- National Cancer Intelligence Centre, Office for National Statistics, Cardiff Road, Newport NP10 8XG, UK
| | - P Harper
- London Oncology Clinic, 95 Harley Street, London W1G 6AF, UK
| | - C Williams
- Bristol Haematology and Oncology Centre, University Hospitals Bristol, Horfield Road, Bristol BS2 8ED, UK
| | - A Crook
- MRC Clinical Trials Unit at UCL, Aviation House, 125 Kingsway, London WC2B 6NH, UK
| | | | - A M Swart
- Norwich Medical School, University of East Anglia, Norwich Research Park NR4 7TJ, UK
| | - B Rachet
- Cancer Research UK Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - M P Coleman
- Cancer Research UK Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
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Manser CN, Bauerfeind P. Impact of socioeconomic status on incidence, mortality, and survival of colorectal cancer patients: a systematic review. Gastrointest Endosc 2014; 80:42-60.e9. [PMID: 24950641 DOI: 10.1016/j.gie.2014.03.011] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 03/05/2014] [Indexed: 12/13/2022]
Affiliation(s)
- Christine N Manser
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Zurich University Hospital, Zurich, Switzerland
| | - Peter Bauerfeind
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Zurich University Hospital, Zurich, Switzerland
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20
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Paterson HM, Mander BJ, Muir P, Phillips HA, Wild SH. Deprivation and access to treatment for colorectal cancer in Southeast Scotland 2003-2009. Colorectal Dis 2014; 16:O51-7. [PMID: 24119140 DOI: 10.1111/codi.12442] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 08/05/2013] [Indexed: 02/08/2023]
Abstract
AIM Socioeconomic deprivation is associated with poorer survival from colorectal cancer. We examined the association of deprivation with access to treatment, disease stage at presentation and choice of treatment for colorectal cancer within a regional managed clinical network. METHOD We performed a retrospective analysis of data from the Southeast Scotland Cancer Network colorectal database for the period 2003-2009. Socioeconomic status was assigned into five categories using postcode of residence and the Scottish Index of Multiple Deprivation score. Outcomes were access to consultation and treatment, stage of disease at presentation and treatment factors (type of surgery, adjuvant radiotherapy and adjuvant chemotherapy). RESULTS Of 4960 colorectal cancer patients, 4016 patients (81%) underwent operative treatment. Deprivation was not associated with age, gender, tumour site, disease stage, delay in treatment pathway or permanent stoma rate. Primary tumour resection (P = 0.006) and chemotherapy treatment (P = 0.018) were higher in the least deprived compared with the most deprived quintile. Socioeconomic status was associated with both primary tumour resection [odds ratio for the most affluent compared with the most deprived quintiles (OR) 1.34, 95% confidence interval (CI) 1.05-1.72, P = 0.018] and chemotherapy treatment (OR 1.44, 95% CI 1.15-1.80, P = 0.001). However, when health board of treatment was added to the model, only chemotherapy treatment was independently associated with deprivation (OR 1.46, 95% CI 1.16-1.83, P = 0.001). CONCLUSION Deprivation is not associated with treatment delay or more advanced disease stage at presentation. An apparent association between deprivation and treatment choice may be explained by other differences between patients treated in different areas.
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Affiliation(s)
- H M Paterson
- Colorectal Surgery Unit, Western General Hospital, Edinburgh, UK
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21
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Kaufman M. Advanced testicular cancer in a society of racial and socio-economic health disparity. BMJ Case Rep 2013; 2013:bcr-2013-009277. [PMID: 23813997 DOI: 10.1136/bcr-2013-009277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
This is the case of an African-American man who presented with a 6 month history of impressive unilateral testicular swelling and abdominal pain. After a thorough workup he was found to have metastatic testicular seminoma causing multiple complex sequelae. This case highlights the essential diagnostic and therapeutic features of a common malignancy seen primarily in young men. His advanced disease presentation, complex management of multiple comorbidities combined with his African-American race and lower socio-economic status (SES) highlight an unusual paradigm shift in testicular cancer epidemiology from the more typical high SES Caucasian to the lower SES, less educated male patient. Beyond the unexpected clinical presentation, this case then presents multiple avenues of discussion regarding the unfortunate effects of racial disparities on disease presentation and progression that are plaguing our healthcare system today.
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Affiliation(s)
- Michael Kaufman
- Wayne State University School of Medicine, Detroit, Michigan, USA.
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22
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Nur U, Rachet B, Parmar MK, Sydes MR, Cooper N, Stenning S, Read G, Oliver T, Mason M, Coleman MP. Socio-economic inequalities in testicular cancer survival within two clinical studies. Cancer Epidemiol 2012; 36:217-21. [DOI: 10.1016/j.canep.2011.07.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Revised: 07/28/2011] [Accepted: 07/30/2011] [Indexed: 10/17/2022]
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23
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Launay L, Dejardin O, Pornet C, Morlais F, Guittet L, Launoy G, Bouvier V. Influence of socioeconomic environment on survival in patients diagnosed with esophageal cancer: a population-based study. Dis Esophagus 2012; 25:723-30. [PMID: 22292704 DOI: 10.1111/j.1442-2050.2011.01312.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The influence of social environment on survival in patients with cancer has been demonstrated in many studies, subjects living in the most deprived areas having a poorer prognosis. Geographic remoteness and limited access to specialized care centers are often associated with socioeconomic deprivation. The aim was to assess the influence of social environment and geographic remoteness on the relative survival of patients diagnosed with esophageal cancer between 1997 and 2004 in the department of Calvados in France. The study population, which was provided by the Calvados digestive cancer registry, included 629 patients. Relative survival was used to estimate the influence of social environment and geographic remoteness on patient survival. Five-year survival rates were 14.1%, 15.1%, 11.8%, 8.8%, and 11.4%, respectively, for patients living in the least to the most deprived areas (P= 0.39). The influence of social environment was significant after adjustment for clinical variables, patients living in the most deprived areas having the worst survival. These discrepancies cannot totally be explained by differences in access to care, cancer extension, or morphology at diagnosis. No association was observed between distance to the nearest cancer center and survival. Social environment appears to induce disparities among patients diagnosed with esophageal cancer, with a worse prognosis for patients living in the most deprived areas.
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Affiliation(s)
- L Launay
- National Institute for Health and Medical Research (INSERM), ERI3 Cancers & Populations, Caen University Hospital, University of Caen Basse-Normandie (UCBN), Caen, France.
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Dupont-Lucas C, Dejardin O, Dancourt V, Launay L, Launoy G, Guittet L. Socio-geographical determinants of colonoscopy uptake after faecal occult blood test. Dig Liver Dis 2011; 43:714-20. [PMID: 21530429 DOI: 10.1016/j.dld.2011.03.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Revised: 02/23/2011] [Accepted: 03/13/2011] [Indexed: 12/11/2022]
Abstract
BACKGROUND Survival from colorectal cancer is poorer in patients of lower socioeconomic level, or living far from the cancer reference centre. AIMS To evaluate the impact of material deprivation and geographical remoteness on the uptake of colonoscopy after a positive screening faecal occult blood test. METHODS Data from two large French average-risk population-based trials comparing two faecal occult blood tests were used. Compliance with colonoscopy after a positive faecal occult blood test was analysed using a logistic model and a Cox model considering time between faecal occult blood test and colonoscopy. Covariates studied were sex, age, distance to nearest gastroenterologist, distance to regional capital, and Townsend's deprivation score. RESULTS Amongst 4320 eligible subjects, 4131 were included. The rate of colonoscopy was 83.8%, within a median time of 66.0 days after faecal occult blood test. Distance to regional capital (p-trend=0.02) and study centre (p<0.0001) were independently associated with colonoscopy uptake. Time from positive faecal occult blood test to colonoscopy, was associated only with distance to the regional capital (p<0.0001, multivariate model stratified on study centre). CONCLUSION Geographical remoteness but not material deprivation was responsible for lower uptake of colonoscopy. Healthcare decision-makers should focus on geographical remoteness to promote equal access to diagnostic procedures in faecal occult blood test colorectal cancer screening programmes.
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Affiliation(s)
- Claire Dupont-Lucas
- INSERM ERI3 Cancers & Populations, Faculté de Médecine, avenue de la Côte de Nacre, Caen, France
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Differences according to educational level in the management and survival of colorectal cancer in Sweden. Eur J Cancer 2011; 47:1398-406. [DOI: 10.1016/j.ejca.2010.12.013] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Revised: 12/07/2010] [Accepted: 12/14/2010] [Indexed: 01/19/2023]
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Barbiere JM, Saeb-Parsy K, Greenberg DC, Wright KA, Brown CH, Neal DE, Lyratzopoulos G. Trends in the use of radiotherapy and radical surgery for patients with bladder urothelial cell carcinoma in East Anglia, 1995-2006. BJU Int 2011; 108:1106-14. [DOI: 10.1111/j.1464-410x.2010.10058.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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[Social inequalities in health from observational studies to intervention: can the patient navigator reduce social inequalities in cancer patients?]. Rev Epidemiol Sante Publique 2011; 59:45-51. [PMID: 21256688 DOI: 10.1016/j.respe.2010.10.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Revised: 10/11/2010] [Accepted: 10/14/2010] [Indexed: 12/31/2022] Open
Abstract
The impact of social factors on healthcare inequality is well-recognized in many industrialized countries and involves a wide range of pathological conditions (cardiovascular disease, cancer, etc.). In general, the poorest indicators of health are observed in socially disadvantaged populations. Beyond this observation is the question of actions taken to prevent the formation of social inequality in healthcare. The purpose of this work was to evaluate the potential contribution of an intervention tool called the "patient navigator", used in English-speaking countries and to determine its feasibility in France.
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Morris EJA, Forman D, Thomas JD, Quirke P, Taylor EF, Fairley L, Cottier B, Poston G. Surgical management and outcomes of colorectal cancer liver metastases. Br J Surg 2010; 97:1110-8. [PMID: 20632280 DOI: 10.1002/bjs.7032] [Citation(s) in RCA: 266] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND This population-based study investigated the frequency of hepatic resections for colorectal cancer metastases across England and their outcome. METHODS Individuals who underwent surgery for colorectal cancer between January 1998 and June 2004 within the English National Health Service were identified via the National Cancer Data Repository. All episodes of care in the 3 years after the initial operation were examined to determine the frequency of liver resection. Variations in the use of liver resection and survival were assessed. RESULTS Some 114 155 individuals underwent surgery for colorectal cancer over the study period, of whom 3116 (2.7 per cent) subsequently had one or more hepatic resections. The hepatectomy rate increased from 1.7 per cent in 1998 to 3.8 per cent in 2004. There was significant variation in the rate of liver resection across cancer networks (range 1.1-4.3 per cent) and hospitals (range 0.7-6.8 per cent). The crude 5-year survival rate after liver resection was 44.2 (95 per cent confidence interval (c.i.) 42.4 to 46.1) per cent from the time of hepatectomy and 45.9 (95 per cent c.i. 44.1 to 47.7) per cent from the time of colectomy. This was comparable to the 5-year survival rate of patients with stage III disease (42.2 (95 per cent c.i. 41.7 to 42.7) per cent). CONCLUSION The rate of resection of liver metastases increased over the study period but varied significantly across the country. Patients who underwent liver resection had 5-year survival comparable to that of patients with stage III colorectal cancer.
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Affiliation(s)
- E J A Morris
- Colorectal Cancer Epidemiology Group, Centre for Epidemiology and Biostatistics, University of Leeds, UK.
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Abstract
Background: Socioeconomic inequalities in survival were observed for many cancers in England during 1981–1999. The NHS Cancer Plan (2000) aimed to improve survival and reduce these inequalities. This study examines trends in the deprivation gap in cancer survival after implementation of the Plan. Materials and method: We examined relative survival among adults diagnosed with 1 of 21 common cancers in England during 1996–2006, followed up to 31 December 2007. Three periods were defined: 1996–2000 (before the Cancer Plan), 2001–2003 (initialisation) and 2004–2006 (implementation). We estimated the difference in survival between the most deprived and most affluent groups (deprivation gap) at 1 and 3 years after diagnosis, and the change in the deprivation gap both within and between these periods. Results: Survival improved for most cancers, but inequalities in survival were still wide for many cancers in 2006. Only the deprivation gap in 1-year survival narrowed slightly over time. A majority of the socioeconomic disparities in survival occurred soon after a cancer diagnosis, regardless of the cancer prognosis. Conclusion: The recently observed reduction in the deprivation gap was minor and limited to 1-year survival, suggesting that, so far, the Cancer Plan has little effect on those inequalities. Our findings highlight that earlier diagnosis and rapid access to optimal treatment should be ensured for all socioeconomic groups.
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Lejeune C, Sassi F, Ellis L, Godward S, Mak V, Day M, Rachet B. Socio-economic disparities in access to treatment and their impact on colorectal cancer survival. Int J Epidemiol 2010; 39:710-7. [PMID: 20378687 DOI: 10.1093/ije/dyq048] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Significant socio-economic disparities have been reported in survival from colorectal cancer in a number of countries, which remain largely unexplained. We assessed whether possible differences in access to treatment among socio-economic groups may contribute to those disparities, using a population-based approach. METHODS We retrospectively studied 71 917 records of colorectal cancer patients, diagnosed between 1997 and 2000, linked to area-level socio-economic information (Townsend index), from three cancer registries in UK. Access to treatment was measured as a function of delay in receipt of treatment. We assessed socio-economic differences in access through logistic regression models. Based on relative survival < or =3 years after diagnosis, we estimated excess hazard ratios (EHRs) of death for different socio-economic groups. RESULTS Compared with more affluent patients, deprived patients had poorer survival [EHR = 1.20; 95% confidence interval (CI) 1.16-1.25], were less likely to receive any treatment within 6 months [odds ratio (OR) = 0.87, 95% CI 0.82-0.92] and, if treated, were more likely to receive late treatment. No disparities in survival were detected among patients receiving treatment within 1 month from diagnosis. Disparities existed among patients receiving later or no treatment (EHR = 1.30; 95% CI 1.22-1.39), and persisted after adjustment for age and stage at diagnosis (EHR = 1.15; 95% CI 1.08-1.24). CONCLUSIONS Tumour stage helped explain socio-economic disparities in colorectal cancer survival. Disparities were also greatly attenuated among patients receiving early treatment. Aspects other than those captured by our measure of access, such as quality of care and patient preferences in relation to treatment, might contribute to a fuller explanation.
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Lyratzopoulos G, Barbiere JM, Gajperia C, Rhodes M, Greenberg DC, Wright KA. Trends and variation in the management of oesophagogastric cancer patients: a population-based survey. BMC Health Serv Res 2009; 9:231. [PMID: 20003488 PMCID: PMC2813235 DOI: 10.1186/1472-6963-9-231] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2009] [Accepted: 12/15/2009] [Indexed: 11/10/2022] Open
Abstract
Background Previous evidence indicates potential variation in the quality of care of cancer patients. We aimed to examine whether recent changes in the treatment of oesophagogastric cancers have been distributed equally among different patient subgroups. Methods We analysed population-based cancer registry data about the treatment patterning of oesophagogastric cancer (other than oesophageal squamous cell carcinoma) during 1995-2006. Results There were 14,077 patients aged ≥40 years (69% men). There was only limited information on stage, and no information on co-morbidity status. During successive triennia, curative surgery use decreased from 28% to 20% (p < 0.001) whilst chemotherapy use increased from 9% to 30% (p < 0.001). Use of palliative surgery and of radiotherapy increased significantly but modestly (7% to 10%, and 9% to 11%, respectively). In multivariable logistic regression adjusting for age group, gender, diagnosis period and tumour type, curative surgery and chemotherapy were used less frequently in more deprived patients [per increasing deprivation group Odds Ratio (OR) = 0.96, 95% Confidence Interval (CI) 0.93-0.99, and OR = 0.90, 95%CI 0.87-0.93, respectively, p < 0.001 for both)]. Chemotherapy was also used less frequently in women (OR = 0.76, p < 0.001). Conclusions During the study period, curative surgery decreased by a third and chemotherapy use increased by more than three-fold, reflecting improvements in the appropriateness and quality of management, but chemotherapy use, in particular, was unequal, both by socioeconomic status and gender.
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Affiliation(s)
- Georgios Lyratzopoulos
- Department of Public Health and Primary Care, University of Cambridge School of Clinical Medicine, Institute of Public Health, Forvie Site, Robinson Way, Cambridge, CB2 0SR, UK.
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Nur U, Shack LG, Rachet B, Carpenter JR, Coleman MP. Modelling relative survival in the presence of incomplete data: a tutorial. Int J Epidemiol 2009; 39:118-28. [DOI: 10.1093/ije/dyp309] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Harris AR, Bowley DM, Stannard A, Kurrimboccus S, Geh JI, Karandikar S. Socioeconomic deprivation adversely affects survival of patients with rectal cancer. Br J Surg 2009; 96:763-8. [DOI: 10.1002/bjs.6621] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Abstract
Background
The aim was to examine the influence of socioeconomic deprivation on stage at presentation, perioperative mortality, permanent stoma rates and overall survival in patients with rectal cancer.
Methods
Data on patient demographics, mode and stage of presentation, and short- and longer-term outcomes were extracted from a database of patients with rectal cancer. Comparisons were made after stratification into quintiles of socioeconomic deprivation.
Results
In total 486 patients were identified. Fewer patients from the most deprived group than from the least deprived group underwent resectional surgery (79·2 versus 93 per cent; P = 0·005). Permanent stoma rates among patients who had surgery were 40·8 and 30 per cent respectively (P = 0·110). The overall 5-year survival rate was 32·8 per cent for the most deprived compared with 64·0 per cent for the least deprived patients (P < 0·001). Respective rates for those who underwent resectional surgery were 49·9 and 72 per cent (P = 0·030).
Conclusion
In rectal cancer, socioeconomic deprivation appears to be associated with poorer outcomes and survival. This has important implications for healthcare planning.
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Affiliation(s)
- A R Harris
- Department of General Surgery, Birmingham Heartlands Hospital, Heart of England NHS Foundation Trust, Bordesley Green East, Birmingham B9 5SS, UK
| | - D M Bowley
- Department of General Surgery, Birmingham Heartlands Hospital, Heart of England NHS Foundation Trust, Bordesley Green East, Birmingham B9 5SS, UK
| | - A Stannard
- Department of General Surgery, Birmingham Heartlands Hospital, Heart of England NHS Foundation Trust, Bordesley Green East, Birmingham B9 5SS, UK
| | - S Kurrimboccus
- Department of General Surgery, Birmingham Heartlands Hospital, Heart of England NHS Foundation Trust, Bordesley Green East, Birmingham B9 5SS, UK
| | - J I Geh
- Oncology, Birmingham Heartlands Hospital, Heart of England NHS Foundation Trust, Bordesley Green East, Birmingham B9 5SS, UK
| | - S Karandikar
- Department of General Surgery, Birmingham Heartlands Hospital, Heart of England NHS Foundation Trust, Bordesley Green East, Birmingham B9 5SS, UK
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