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Khan S, Claeson M, Khan A, Neale R. The effect of physical activity on vitamin D: A systematic review and meta-analysis of intervention studies in humans. Public Health Pract (Oxf) 2024; 7:100495. [PMID: 38601179 PMCID: PMC11004199 DOI: 10.1016/j.puhip.2024.100495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 03/27/2024] [Indexed: 04/12/2024] Open
Abstract
Objectives Cross-sectional studies demonstrate a positive association between higher physical activity and serum 25-hydroxyvitamin D (25(OH)D) concentration. However, whether this association is causal is unclear. We conducted a systematic review to identify intervention studies that examined the effect of physical activity on serum 25(OH)D concentration in humans. Study design Systematic review and meta-analysis. Methods We searched PubMed, Scopus and Web of Science to identify full-text peer-reviewed articles published in English from inception until January 2023. Eligible studies were randomised controlled trials or quasi-experimental studies. We used random effects meta-analysis to calculate the weighted mean difference (WMD) in the change in 25(OH)D concentration between physical activity and control groups. We used the revised Cochrane risk-of-bias tool for randomized trials (RoB 2) to assess the methodological quality of included studies. Results We included 32 articles in the systematic review and 24 in the meta-analysis. The intervention varied from resistance and weight-bearing exercises (n = 13) to aerobic exercises (n = 10), moderate and moderate-to-vigorous exercises (n = 5), aquatic exercise (n = 2), and multicomponent traditional exercises (n = 2) (Tai Chi and Yijinjing). The WMD in 25(OH)D in the physical activity and control groups was 9.51 and 4.87, respectively (between-group mean difference 4.64, p = 0.002). However, the difference was only evident in studies that implemented the intervention outdoors (n = 3; between-group mean difference 17.33, p < 0.0001); when the intervention was indoors there was no significant effect of physical activity on 25(OH)D (n = 16; between-group mean difference 1.80, p = 0.113). Conclusions This meta-analysis of physical activity interventions in humans showed that physical activity does not lead to increased 25(OH)D independently of time outdoors. However, most studies were under-powered, in many the exercise was low intensity, and vitamin D was not the primary outcome.
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Affiliation(s)
- S.R. Khan
- Kirby Institute, University of New South Wales, Kensington, NSW, 2052, Australia
| | - M. Claeson
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, 413 45, Gothenburg, Sweden
- Population Health Program, QIMR Berghofer Medical Research Institute, Herston, QLD, 4029, Australia
| | - A. Khan
- School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - R.E. Neale
- Population Health Program, QIMR Berghofer Medical Research Institute, Herston, QLD, 4029, Australia
- School of Public Health, The University of Queensland, Herston, QLD, 4029 Australia
- Sunshine Coast University Hospital, Birtinya, QLD, 4575, Australia
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Fougelberg J, Backman E, Hasselquist E, Sjöholm A, Claeson M, Paoli J. Cryosurgery versus curettage for intraepidermal carcinoma: A randomized controlled trial. J Eur Acad Dermatol Venereol 2023; 37:2370-2377. [PMID: 37437124 DOI: 10.1111/jdv.19322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 06/12/2023] [Indexed: 07/14/2023]
Abstract
BACKGROUND Cryosurgery is a common destructive treatment method for intraepidermal carcinoma (IEC) above the knee. Curettage alone is a simple, non-aggressive and inexpensive treatment method commonly used on benign skin lesions. However, only one study has assessed curettage for treatment of IEC. OBJECTIVE We aimed to (1) compare the effectiveness of cryosurgery (standard method) to curettage (experimental method) for treatment of IEC in regard to overall clearance rates at 1-year follow-up, and (2) investigate whether wound healing times differed between the treatment groups. METHODS In this randomized and controlled, non-inferiority trial, adult patients with one or more IEC with a diameter of 5-20 mm, located above the knee and suitable for destructive treatment were recruited from Sahlgrenska University Hospital (Gothenburg, Sweden). Lesions were randomized to treatment with either cryosurgery or curettage. Wound healing was assessed by a nurse after 4-6 weeks and through self-report forms. Overall clearance was assessed by a dermatologist after 1 year. RESULTS In total, 183 lesions in 147 patients were included, with 93 lesions randomized to cryosurgery and 90 to curettage. Eighty-eight (94.6%) of the lesions in the cryosurgery group and 71 (78.9%) in the curettage group showed an overall clearance at the 1-year follow-up visit (p = 0.002). The non-inferiority analysis was inconclusive. Curettage resulted in both shorter self-reported wound healing times (mean time 3.1 vs. 4.8 weeks, p < 0.001) and a larger proportion of healed wounds after 4-6 weeks (p < 0.001). CONCLUSIONS Cryosurgery and curettage both result in high clearance rates for treatment of IEC, but cryosurgery is significantly more effective. On the other hand, curettage may result in shorter wound healing times.
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Affiliation(s)
- J Fougelberg
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Dermatology and Venereology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - E Backman
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Dermatology and Venereology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - E Hasselquist
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - A Sjöholm
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Dermatology and Venereology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - M Claeson
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Dermatology and Venereology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - J Paoli
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Dermatology and Venereology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
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Claeson M, Tan SX, Lambie D, Brown S, Walsh MD, Baade PD, Pandeya N, Whitehead KJ, Soyer HP, Smithers BM, Whiteman DC, Khosrotehrani K. The association between BRAF-V600E mutations and death from thin (≤1.00 mm) melanomas: A nested case-case study from Queensland, Australia. J Eur Acad Dermatol Venereol 2023; 37:e1168-e1172. [PMID: 37147869 DOI: 10.1111/jdv.19173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 04/26/2023] [Indexed: 05/07/2023]
Affiliation(s)
- M Claeson
- Department of Population Health, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- Dermatology Research Centre, Experimental Dermatology Group, University of Queensland Diamantina Institute, Brisbane, Queensland, Australia
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - S X Tan
- Dermatology Research Centre, Experimental Dermatology Group, University of Queensland Diamantina Institute, Brisbane, Queensland, Australia
| | - D Lambie
- Anatomical Pathology, Princess Alexandra Hospital, Pathology Queensland, Brisbane, Queensland, Australia
- University of Queensland Diamantina Institute, Brisbane, Queensland, Australia
| | - S Brown
- Department of Population Health, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- Dermatology Research Centre, Experimental Dermatology Group, University of Queensland Diamantina Institute, Brisbane, Queensland, Australia
| | - M D Walsh
- Histopathology Department, Sullivan Nicolaides Pathology, Brisbane, Queensland, Australia
| | - P D Baade
- Cancer Council Queensland, Queensland, Australia
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
- Centre for Data Science, Queensland University of Technology, Brisbane, Queensland, Australia
| | - N Pandeya
- Department of Population Health, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - K J Whitehead
- Histopathology Department, Sullivan Nicolaides Pathology, Brisbane, Queensland, Australia
| | - H P Soyer
- Dermatology Research Centre, Experimental Dermatology Group, University of Queensland Diamantina Institute, Brisbane, Queensland, Australia
- Department of Dermatology, Princess Alexandra Hospital, Brisbane, Queensland, Australia
| | - B M Smithers
- Queensland Melanoma Project, University of Queensland, Princess Alexandra Hospital, Brisbane, Queensland, Australia
| | - D C Whiteman
- Department of Population Health, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - K Khosrotehrani
- Dermatology Research Centre, Experimental Dermatology Group, University of Queensland Diamantina Institute, Brisbane, Queensland, Australia
- Department of Dermatology, Princess Alexandra Hospital, Brisbane, Queensland, Australia
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Claeson M, Baade P, Marchetti M, Brown S, Soyer HP, Smithers BM, Green AC, Whiteman DC, Khosrotehrani K. Comparative performance of predictors of death from thin (≤ 1·0 mm) melanoma. Br J Dermatol 2021; 185:849-851. [PMID: 33982292 DOI: 10.1111/bjd.20480] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2021] [Indexed: 11/30/2022]
Affiliation(s)
- M Claeson
- Department of Population Health, QIMR Berghofer Medical Research Institute, Brisbane, Australia.,The University of Queensland Diamantina Institute, The University of Queensland, Dermatology Research Centre, Brisbane, Australia.,Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - P Baade
- Cancer Council Queensland, Australia.,Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia
| | - M Marchetti
- Dermatology Service, Memorial Sloan Kettering Cancer Center, New York City, NY, USA
| | - S Brown
- Department of Population Health, QIMR Berghofer Medical Research Institute, Brisbane, Australia.,The University of Queensland Diamantina Institute, The University of Queensland, Dermatology Research Centre, Brisbane, Australia
| | - H P Soyer
- The University of Queensland Diamantina Institute, The University of Queensland, Dermatology Research Centre, Brisbane, Australia.,Department of Dermatology, Queensland Melanoma Project, University of Queensland, Princess Alexandra Hospital, Brisbane, Australia
| | - B M Smithers
- Queensland Melanoma Project, University of Queensland, Princess Alexandra Hospital, Brisbane, Australia
| | - A C Green
- Department of Population Health, QIMR Berghofer Medical Research Institute, Brisbane, Australia.,Cancer Research UK Manchester Institute and University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - D C Whiteman
- Department of Population Health, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - K Khosrotehrani
- The University of Queensland Diamantina Institute, The University of Queensland, Dermatology Research Centre, Brisbane, Australia.,Department of Dermatology, Queensland Melanoma Project, University of Queensland, Princess Alexandra Hospital, Brisbane, Australia
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5
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Claeson M, Baade P, Brown S, Soyer H, Smithers B, Green A, Whiteman D, Khosrotehrani K. 薄黑色素瘤的哪些特征使其更有可能导致死亡. Br J Dermatol 2020. [DOI: 10.1111/bjd.18918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Claeson M, Baade P, Brown S, Soyer H, Smithers B, Green A, Whiteman D, Khosrotehrani K. Which features of thin melanomas make them more likely to cause death. Br J Dermatol 2020. [DOI: 10.1111/bjd.18908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Claeson M, Baade P, Brown S, Soyer HP, Smithers BM, Green AC, Whiteman DC, Khosrotehrani K. Clinicopathological factors associated with death from thin (≤ 1·00 mm) melanoma. Br J Dermatol 2019; 182:927-931. [PMID: 31562769 DOI: 10.1111/bjd.18560] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND Thin cutaneous melanomas (≤ 1·00 mm) are increasing worldwide, causing around a quarter of all melanoma deaths in the U.S.A. and Australia. Identification of predictive factors for potentially fatal thin melanomas could allow better use of resources for follow-up. OBJECTIVES To identify the clinicopathological factors associated with fatal thin melanomas. METHODS This large, nested case-case study extracted data from the population-based Queensland Cancer Registry, Australia. Our cohort consisted of Queensland residents aged 0-89 years who were diagnosed with a single, locally invasive thin melanoma (≤ 1·00 mm) between 1995 and 2014. Fatal cases (eligible patients who died from melanoma) were individually matched to three nonfatal cases (eligible patients who were not known to have died from melanoma) according to sex, age, year of diagnosis and follow-up interval. Using conditional logistic regression, we calculated odds ratios (ORs) for melanoma-specific death, adjusting for all collected clinicopathological variables. RESULTS In the cohort, 27 660 eligible patients were diagnosed with a single, thin melanoma. The final case-case series included 424 fatal cases and 1189 nonfatal cases. Fatal cases were sixfold as likely to arise on the scalp as on the back [OR 6·39, 95% confidence interval (CI) 2·57-15·92] and six times as likely to be of thickness 0·80-1·00 mm as of < 0·30 mm (OR 6·00, 95% CI 3·55-10·17). CONCLUSIONS Scalp location is a strong prognostic factor of death from thin melanoma. Further, this study provides support that melanomas with a thickness of 0·80-1·00 mm are the more hazardous thin lesions. Patients with these tumour characteristics require specific attention during follow-up. What's already known about this topic? Thin invasive melanomas (≤ 1·00 mm) contribute a substantial proportion of melanoma fatalities, owing to the high volume of disease. There is a need to find prognostic factors that will better identify fatal thin melanomas at the time of diagnosis. What does this study add? In this large population-based study, fatal thin tumours were sixfold as likely to be located on the scalp as on the back. Thin melanomas of 0·80-1·00 mm thickness were six times as likely to be associated with death as tumours < 0·30 mm. Scalp location and increasing thickness are strong predictive factors of fatal thin melanomas, indicating that patients with these tumour characteristics require close follow-up.
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Affiliation(s)
- M Claeson
- Department of Population Health, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.,Dermatology Research Centre, The University of Queensland, The University of Queensland Diamantina Institute, Brisbane, QLD, Australia.,Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - P Baade
- Cancer Council Queensland, QLD, Australia.,Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, Australia
| | - S Brown
- Department of Population Health, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.,Dermatology Research Centre, The University of Queensland, The University of Queensland Diamantina Institute, Brisbane, QLD, Australia
| | - H P Soyer
- Dermatology Research Centre, The University of Queensland, The University of Queensland Diamantina Institute, Brisbane, QLD, Australia.,Department of Dermatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - B M Smithers
- Queensland Melanoma Project, University of Queensland, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - A C Green
- Department of Population Health, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.,Cancer Research UK Manchester Institute and University of Manchester, Manchester Academic Health Science Centre, Manchester, U.K
| | - D C Whiteman
- Department of Population Health, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - K Khosrotehrani
- Dermatology Research Centre, The University of Queensland, The University of Queensland Diamantina Institute, Brisbane, QLD, Australia.,Department of Dermatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
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8
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Cornely M, Schöldgen W, Kautz G, Kautz I, Jünger M, Claeson M. [From dermabrasion to laser. Development of operative-interventional methods in aesthetic dermatology]. Hautarzt 2007; 58:199-200, 202-9. [PMID: 17318464 DOI: 10.1007/s00105-007-1307-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Many operative-interventional methods are available for aesthetic dermatology. The established high-speed dermabrasion as developed by Schreus has been replaced in many indications by newer approaches. Laser ablation can be effectively used for resurfacing of sun-damaged or scarred skin, but is associated with extensive side effects. Newer developments such as fractionated laser treatment are designed to fill the gap between ablative and non-ablative skin resurfacing. The side effects are much less severe, but the effectiveness must be confirmed in larger studies. Photorejuvenation with intense pulsed light (IPL) offers a wide variety of treatment parameters for a broad spectrum of skin changes. Both superficial and deep structures can be treatment in one session using IPL.
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Affiliation(s)
- M Cornely
- Wagnerstrasse 15, 40212 Düsseldorf, Deutschland.
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Claeson M, Ringdahl A. Prevalence of cochlear implants in postlingually deafened adults in a Swedish region. Int J Audiol 2006; 45:670-4. [PMID: 17118909 DOI: 10.1080/14992020600937105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Cochlear implantation (CI) rates vary between countries, depending on identification routines and economic restrictions. The present study aimed at determining the prevalence of CIs in postlingually deafened, aged 20-69 years old, in Göteborg, Sweden. Three patient databases with information on PTA, a questionnaire, medical records and consultations identified 88 subjects with sensorineural hearing loss >/=80 dB HL (PTA of 500, 1000, 3000 Hz), PB word score of </=30% (better ear), regular use of hearing-aid, and oral language. The prevalence of CIs was 11.8 per 100 000 population, and of subjects fulfilling the audiometric candidacy criteria 18.6 per 100 000. The mean PTA (op. ear) of subjects awaiting operation was 97 dB HL (SD 12.3), and of already implanted subjects 106 dB HL (SD 10.2). Mean PB word score was 9% (SD 8.9) and 3% (SD 4.9) respectively. Subjects awaiting operation had significantly better residual hearing, emphasizing recent changes in candidacy criteria. Comparing with prevalence from other countries demonstrated that more patients could be candidates for cochlear implantation.
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Affiliation(s)
- M Claeson
- Department of Otorhinolaryngology, Sahlgrenska University Hospital, Göteborg, Sweden
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Abstract
The child survival revolution of the 1980s contributed to steady decreases in child mortality in some populations, but much remains to be done. More than 10 million children will die this year, almost all of whom are poor. Two-thirds of these deaths could have been prevented if effective child survival interventions had reached all children and mothers who needed them. Translation of current knowledge into effective action for child survival will require leadership, strong health systems, targeted human and financial resources, and modified health system to ensure that poor children and mothers benefit. A group of concerned scientists and policy-makers issues a call to action to leaders, governments, and citizens to translate knowledge into action for child survival.
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Claeson M, Waldman RJ. The evolution of child health programmes in developing countries: from targeting diseases to targeting people. Bull World Health Organ 2000; 78:1234-45. [PMID: 11100618 PMCID: PMC2560618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
Mortality rates among children and the absolute number of children dying annually in developing countries have declined considerably over the past few decades. However, the gains made have not been distributed evenly: childhood mortality remains higher among poorer people and the gap between rich and poor has grown. Several poor countries, and some poorer regions within countries, have experienced a levelling off of or even an increase in childhood mortality over the past few years. Until now, two types of programmes--short-term, disease-specific initiatives and more general programmes of primary health care--have contributed to the decline in mortality. Both types of programme can contribute substantially to the strengthening of health systems and in enabling households and communities to improve their health care. In order for them to do so, and in order to complete the unfinished agenda of improving child health globally, new strategies are needed. On the one hand, greater emphasis should be placed on promoting those household behaviours that are not dependent on the performance of health systems. On the other hand, more attention should be paid to interventions that affect health at other stages of the life cycle while efforts that have been made to develop interventions that can be used during childhood continue.
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Affiliation(s)
- M Claeson
- Health, Nutrition, and Population, Human Development Department, World Bank, Washington, DC 20433, USA.
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Claeson M, Bos ER, Mawji T, Pathmanathan I. Reducing child mortality in India in the new millennium. Bull World Health Organ 2000; 78:1192-9. [PMID: 11100614 PMCID: PMC2560624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
Globally, child mortality rates have been halved over the last few decades, a developmental success story. Nevertheless, progress has been uneven and in recent years mortality rates have increased in some countries. The present study documents the slowing decline in infant mortality rates in india; a departure from the longer-term trends. The major causes of childhood mortality are also reviewed and strategic options for the different states of India are proposed that take into account current mortality rates and the level of progress in individual states. The slowing decline in childhood mortality rates in India calls for new approaches that go beyond disease-, programme- and sector-specific approaches.
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Affiliation(s)
- M Claeson
- Human Development Department, World Bank, Washington, DC 20433, USA.
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Claeson M, De Beyer J, Jha P, Feachem R. The World Bank's perspective on global health. Curr Issues Public Health 1996; 2:264-9. [PMID: 12347700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Affiliation(s)
- L Richards
- Diarrhoeal Disease Control Programme, World Health Organization, Geneva, Switzerland
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Abstract
In January, 1991, epidemic cholera emerged in Peru and spread to 7 other countries of Latin America. Cholera was introduced 20 years ago to Africa, where it spread rapidly to 30 of the 46 countries of the region and by 1990 accounted for 90% of all cases reported to the World Health Organisation. Many lessons from the cholera epidemic in Africa are relevant to efforts to control the disease in Latin America. Public health practices from the past--quarantine and cordon sanitaire to halt introduction of cholera by travellers, and vaccination and mass chemoprophylaxis to control epidemics--are ineffective in preventing spread of the disease. Cholera can be transmitted not only by contaminated water but also by food. Social phenomena such as mass migrations and burial practices may play a greater role than previously understood. While efforts to prevent the spread of cholera have been ineffective, cholera-associated mortality can be decreased with rehydration therapy. Since the current pandemic is unlikely to retreat soon, new strategies are urgently needed to control the spread of cholera through sanitary and behavioural interventions or improved vaccines.
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Affiliation(s)
- R I Glass
- Viral Gastroenteritis Unit, Centers for Disease Control, Atlanta, Georgia, 30333
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Affiliation(s)
- M Claeson
- Diarrhoeal Diseases Control Programme, World Health Organization, Geneva, Switzerland
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Vesikari T, Claeson M. [Vaccines today and tomorrow. Rotavirus vaccine to prevent infant mortality in developing countries]. Lakartidningen 1989; 86:2299-301. [PMID: 2747361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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