The severity of breast cancer at diagnosis: a comparison of age and extent of disease in black and white women

Explaining time elapsed prior to cancer diagnosis: patients' perspectives

Background

Cancer is the leading cause of death in Canada. Early cancer diagnosis could improve patients’ prognosis and quality of life. This study aimed to analyze the factors influencing elapsed time between the first help-seeking trigger and cancer diagnosis with respect to the three most common and deadliest cancer types: lung, breast, and colorectal.

Methods

This paper presents the qualitative component of a larger project based on a sequential explanatory design. Twenty-two patients diagnosed were interviewed, between 2011 to 2013, in oncology clinics of four hospitals in the two most populous regions in Quebec (Canada). Transcripts were analyzed using the Model of Pathways to Treatment.

Results

Pre-diagnosis elapsed time and phases are difficult to appraise precisely and vary according to cancer sites and symptoms specificity. This observation makes the Model of Pathways to Treatment challenging to use to analyze patients’ experiences. Analyses identified factors contributing to elapsed time that are linked to type of cancer, to patients, and to health system organization.

Conclusions

This research allowed us to identify avenues for reducing the intervals between first symptoms and cancer diagnosis. The existence of inequities in access to diagnostic services, even in a universal healthcare system, was highlighted.

Employment after a breast cancer diagnosis: a qualitative study of ethnically diverse urban women

Employment status is related to treatment recovery and quality of life in breast cancer survivors, yet little is known about return to work in immigrant and minority survivors. We conducted an exploratory qualitative study using ethnically cohesive focus groups of urban breast cancer survivors who were African-American, African-Caribbean, Chinese, Filipina, Latina, or non-Latina white. We audio- and video-recorded, transcribed, and thematically coded the focus group discussions and we analyzed the coded transcripts within and across ethnic groups. Seven major themes emerged related to the participants' work experiences after diagnosis: normalcy, acceptance, identity, appearance, privacy, lack of flexibility at work, and employer support. Maintaining a sense of normalcy was cited as a benefit of working by survivors in each group. Acceptance of the cancer diagnosis was most common in the Chinese group and in participants who had a family history of breast cancer; those who described this attitude were likely to continue working throughout the treatment period. Appearance was important among all but the Chinese group and was related to privacy, which many thought was necessary to derive the benefit of normalcy at work. Employer support included schedule flexibility, medical confidentiality, and help maintaining a normal work environment, which was particularly important to our study sample. Overall, we found few differences between the different ethnic groups in our study. These results have important implications for the provision of support services to and clinical management of employed women with breast cancer, as well as for further large-scale research in disparities and employment outcomes.

A local area analysis of racial, ethnic, and neighborhood disparities in breast cancer staging

Few studies have examined the role of neighborhood socioeconomic condition in shaping breast cancer disparities in defined local areas. We tested associations between three measures of neighborhood socioeconomic condition (poverty, median income, and a composite neighborhood score) on breast cancer staging in two urban counties of the state of New Jersey. Data for these counties were obtained from the New Jersey Surveillance, Epidemiology, and End Results tumor registry and were selected because of their large racial/ethnic and socioeconomic diversity and pilot prevention efforts taking place in these areas. Our study population included Black, Latina, and White women (N = 4,589) diagnosed with breast cancer from 1999 to 2004. Each cancer case was geocoded and linked to socioeconomic data obtained from the 2000 U.S. census. Census tracts served as proxies for neighborhoods. Logistic regression models accounting for clustering of individuals within neighborhoods were fitted with Generalized Estimating Equations. Women living in neighborhoods with lower versus higher neighborhood scores were significantly more likely to have advanced-stage disease (odds ratio, 1.6; confidence intervals, 1.1-2.3), after adjusting for age at diagnosis and race/ethnicity. In analyses stratified by race/ethnicity, results remained significant for all neighborhood measures for White and Black women, but not for Latinas. Moreover, neighborhood poverty showed a weaker socioeconomic gradient in breast cancer staging among White women. Our study findings support the use of a multidimensional neighborhood index to better capture differences in cancer staging risk across racial/ethnic groups and provides evidence that population-based cancer data could be used to identify local needs specific to local populations.

Changes in Medical Care Experiences of Racial and Ethnic Groups in the United States, 1996–2002

The authors examined changes in medical care experiences of racial/ethnic groups (non-Hispanic white, Asian and Pacific Islander, Hispanic, and non-Hispanic black) between 1996 and 2002, using data from the Household Component of Medical Expenditure Panel Surveys. Proportions and adjusted odds ratios for each group's primary care experience are presented. Comparisons are made between groups at each time period and within groups between the two time periods. Multivariable analyses control for demographic and socioeconomic characteristics, health care needs and source of care, and health insurance. Racial/ethnic minorities experienced worse medical care than non-Hispanic whites, but results differed among groups. Non-Hispanic blacks were no different from non-Hispanic whites and showed a slight improvement over time, except for lower odds of having a usual source of care and worse sociodemographic and health indicators. Hispanics had worse experiences than whites in 5 of 8 indicators in 2002 (vs. 3 in 1996). Asians assessed their experience as worse than that of whites in 6 of 8 indicators in 2002 (vs. 3 in 1996), yet had higher self-rated health and education than non-Hispanic whites. Disparities in medical care experience have increased for some groups, and efforts must be made to reduce financial and nonfinancial barriers to care for racial/ethnic minority populations.

Malignant disease and the elderly

Most cancers are diseases of the ageing. Approximately 50% of all cancers occur among those over 65 and nearly 60% of all cancer deaths occur among the elderly. The cumulative risk of acquiring cancer among those aged 65-85 is 17% in females and 23% in males. Cancer incidence increases steadily as a function of age, reaching 23 per 1000 population among those aged 85 and older. Recent estimates of age-specific cancer prevalence rates for women over 70 were 106 per 1000 population and were 118 per 1000 population among men over 70. The rapidly shifting age distribution in most industrialized nations, including the growth of the 'old-old', means that the actual number of older people with cancer will increase at least in proportion to the ageing of the population. This trend will have an impact on the health-care system and may affect social norms regarding the treatment of elderly cancer patients. This paper reviews these trends and presents data from a series of research projects and the related literature to examine how older people respond to cancer symptoms and treatment and whether the treatment received by aged cancer patients differs from that given to younger patients. The relationship between age and stage of disease at presentation is explored, together with the manner in which older cancer patients' disease is identified, the 'aggressiveness' of treatment pursued, and patients' responses to those treatments.

Disparities in mammography screening in rural areas: analysis of county differences in North Carolina

The extent to which targeted mammography programs have impacted women in rural areas is not well defined. We investigated mammography screening rates among 843 women age 50 and over from a population-based sample in four predominantly rural eastern North Carolina counties. We examined age, race, education level, county of residence, health insurance, and the self-reported completion of mammography in the past year using contingency tables and logistic regression. African American females aged 65 years or older had the lowest reported mammography rates (42%), while white females aged 50 to 64 had the highest rates (58%). Uninsured women and those with less education were less likely to have received a mammogram. Logistic regression demonstrated that age, education, and health insurance were significant predictors of mammography completion. A county-level analysis revealed that three counties had similar rates and one county had substantially lower rates. A higher-than-expected rate of screening-mammography completion among African American women was noted in one predominantly rural county served by a breast cancer screening program. Logistic regression analysis confirmed that county was a significant predictor for mammography completion. In separate regressions run by race, county remained a significant predictor for African American women but not for white women. Differences in mammography screening appear to persist in some predominantly rural areas and are related to age, race, education, and health insurance. Programs that target hard-to-reach women with efforts tailored specifically to their needs may be effective in reducing persistent racial differences.

Can obesity explain the racial difference in stage of breast cancer at diagnosis between black and white women?

OBJECTIVE

Black women are more likely to be diagnosed at a more advanced stage of breast cancer than are white women. Traditionally, this has been attributed in part to social or cultural factors. Given that black women are more likely to be obese than white women and that being obese is associated with a more advanced stage at diagnosis, this study aims to assess to what extent the racial difference in stage at diagnosis can be explained by racial differences in obesity.

METHODS

Incident cases of breast cancer between 1991 and 1997 (white, n = 585; black, n = 381) were identified from hospitals in the Baltimore metropolitan area. Information, including age, race, weight, height, and pathology reports, was obtained from hospital medical records.

RESULTS

Black women were more likely than white women to be diagnosed with breast cancer at tumor-node-metastasis (TNM) stage II or greater (age-adjusted odds ratio [OR] = 1.51, 95% confidence interval [CI] 1.15-1.99). Further, black women were more likely than white women to be overweight or obese. A high body mass index (BMI) was significantly associated with an advanced stage of breast cancer at diagnosis. Adjustment for the higher prevalence of obesity in black women attenuated the risk estimate of more advanced stage of breast cancer at diagnosis in black women compared with white women by approximately 30%.

CONCLUSIONS

Our results suggest that the higher prevalence of obesity among black women plays an important role in explaining their relative disadvantage in stage at diagnosis of breast cancer. Nonetheless, a racial difference in stage of breast cancer at diagnosis persists after adjustment for obesity.

Geographic socioeconomic status, race, and advanced-stage breast cancer in New York City

OBJECTIVES

This study examined the association between a residential area' socioeconomic status (SES), race, and advanced-stage breast cancer in New York City.

METHODS

The cross-sectional study design used breast cancer information for 37 921 cases diagnosed in New York City from 1986 to 1995. Residential education and income levels were based on the 1990 census and ascribed to each case by zip code. Associations between race, area SES, and advanced-stage breast cancer stage, and the interaction between race and SES, were evaluated in bivariate and multivariate analyses.

RESULTS

After adjusting for age and year at diagnosis, living in areas with lower levels of education and income increased the odds of presenting with advanced-stage breast cancer by 50% for Black women and by 75% for White women. No significant qualitative interaction was present between area SES and race.

CONCLUSIONS

This study confirmed independent racial and socioeconomic differences in the risk of advanced-stage breast cancer in a large and diverse population. The results emphasize the need to improve screening practices and clinical treatment in both high-risk populations and high-risk geographic areas.

Impact of breast carcinoma on African-American women: the Detroit experience

BACKGROUND

National and regional population-based data have demonstrated substantially worse outcome in African-American patients with breast carcinoma when compared with white patients, as well as a younger age distribution among African-American patients with breast carcinoma. The extent to which various socioeconomic, environmental, lifestyle, and genetic factors interact to account for this ethnicity-related disparity in survival is poorly understood. Greater than one-half of the inner-city population of Detroit, Michigan is African American, and greater metropolitan Detroit has been one of the contributing registries for the Surveillance, Epidemiology, and End Results (SEER) program since its inception in 1973. The impact of breast carcinoma on African Americans in the Detroit area is therefore well documented and provides significant insight into the history, epidemiology, and biology of this major public health care problem.

METHODS

A review of the medical literature published over the past 20 years regarding African-American patients with breast carcinoma was performed. The pertinent findings were summarized in the context of advances made in breast carcinoma screening, treatment, and risk reduction during that period.

RESULTS

The large African-American population of Detroit is a major factor contributing to the excessive breast carcinoma mortality rate reported for this city, which is one of the highest in the United States. Improvements in early detection of breast carcinoma by using screening mammography have been apparent in the earlier stage distributions of breast carcinoma observed in both white and African-American patients; however, progress has lagged substantially for the latter group. Detroit SEER registry data also have shown a younger age distribution of African-American patients with breast carcinoma and higher rates of estrogen receptor negative tumors. Finally, preliminary data from health maintenance organizations have suggested improved breast carcinoma outcome for African Americans who possess greater socioeconomic benefits, but disparities in disease stage at presentation persist.

CONCLUSIONS

The diverse Detroit community is ideally suited for breast carcinoma screening programs and clinical investigations that seek to address and overcome ethnicity-related survival disparities and barriers to health care. Findings from these studies can be correlated with results from similar projects in other geographic areas.

Racial and ethnic differences in access to medical care

The authors' review of the health services literature since the release of the landmark Report of the Secretary's Task Force Report of Black and Minority Health in 1985 revealed significant differences in access to medical care by race and ethnicity within certain disease categories and types of health services. The differences are not explained by such factors as socioeconomic status (SES), insurance coverage, stage or severity of disease, comorbidities, type and availability of health care services, and patient preferences. Under certain circumstances when important variables are controlled, racial and ethnic disparities in access are reduced and may disappear. Nonetheless, the literature shows that racial and ethnic disparities persist in significant measure for several disease categories and service types. The complex challenge facing current and future researchers is to understand the basis for such disparities and to determine why disparities are apparent in some but not other disease categories and service types.

Race, anthropometric factors, and stage at diagnosis of breast cancer

A recent study suggested that the greater prevalence of severe obesity among African-American women explained almost one third of the observed differences between African-American and White women in stage at diagnosis of breast cancer. The objective of this investigation was to attempt to replicate these findings in a second, larger population and to expand the analyses by including a measure of body fat distribution, the waist:hip ratio. The authors used data from a population-based study in North Carolina comprising 791 breast cancer cases (302 in African-American women and 489 in White women) diagnosed between 1993 and 1996. African-American women were more likely to have later-stage (TNM stage >/=II) breast cancer (odds ratio (OR) = 2.2; 95% confidence interval (CI): 1.6, 2.9). They also were much more likely to be severely obese (body mass index >/=32.3) (OR = 9.7; 95% CI: 6.5, 14.5) and to be in the highest tertile of waist:hip ratio (OR = 5.7; 95% CI: 3.8, 8.6). In multivariate logistic regression models, adjustment for waist:hip ratio reduced the odds ratio for later-stage disease in African-American women by 20%; adjustment for both waist:hip ratio and severe obesity reduced the odds ratio by 27%. These observations suggest that obesity and body fat distribution, in addition to socioeconomic and medical care factors, contribute to racial differences in stage at breast cancer diagnosis.

Mammography use, breast cancer stage at diagnosis, and survival among older women

BACKGROUND

Women age 65 years and older account for most newly diagnosed breast cancers and deaths from breast cancer. Yet, older women are least likely to undergo mammography, perhaps because mammography's value is less well demonstrated in older women.

OBJECTIVE

To investigate the relationship between prior mammography use, cancer stage at diagnosis, and breast cancer mortality among older women with breast cancer.

DESIGN

Retrospective cohort study using the Linked Medicare-Tumor Registry Database.

SETTING

Population-based data from three geographic areas included in the National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) program.

PARTICIPANTS

Women aged 67 and older diagnosed with a first primary breast cancer, from 1987 to 1993, residing in Connecticut, metropolitan Atlanta, Georgia, or Seattle-Puget Sound, Washington.

MEASUREMENTS

Medicare claims were reviewed and women were classified according to their mammography use during the 2 years before diagnosis: nonusers (no prior mammograms), regular users (at least two mammograms at least 10 months apart), or peri-diagnosis users (only mammogram(s) within 3 months before diagnosis). Mammography utilization was linked with SEER data to determine stage at diagnosis and cause of death. Our main outcome variables were (1) stage at diagnosis, classified as early (in situ/Stage I) or late (Stage II or greater), and (2) breast cancer mortality, measured from diagnosis until death from breast cancer or end of the follow-up period (December 31, 1994).

RESULTS

Older women who were nonusers of mammography were diagnosed with breast cancer at Stage II or greater more often than regular users (adjusted odds ratio (OR), 3.12; 95% confidence interval (CI), 2.74-3.58). This association was present within each age group studied. Nonusers of mammography were at significantly greater risk of dying from their breast cancer than regular users for all women (adjusted hazard ratio (HR), 3.38; 95% CI, 2.65-4.32) and for women within each age group. Even assuming a lead time of 1.25 years, nonusers of mammography continued to be at increased risk of dying from breast cancer. Our findings remained significant for all women and for the two youngest age groups (67-74 years, 75-85 years), although the benefit was no longer statistically significant for the oldest women (85 years and older).

CONCLUSIONS

Older women who undergo regular mammography are diagnosed with an earlier stage of disease and are less likely to die from their disease. These data support the use of regular mammography in older women and suggest that mammography can reduce breast cancer mortality in older women, even for women age 85 and older.

Cancer education among primary care physicians in an underserved community

INTRODUCTION

Urban minority groups, such as those living in north Manhattan, are generally underserved with regard to cancer prevention and screening practices. Primary care physicians are in a critical position to counsel their patients on these subjects and to order screening tests for their patients.

METHODS

Eighty-four primary care physicians in two intervention communities who received educational visits about cancer screening and prevention were compared with 38 physicians in a nearby community who received no intervention. With pre- and post-test interviews over an 18-month period, the physicians were asked about their attitudes toward, knowledge of (relative to American Cancer Society guidelines), and likelihood of counseling and screening for breast, cervical, colorectal, and prostate cancers.

RESULTS

Comparison of the two surveys of physicians indicated no statistically significant differences in knowledge of cancer prevention or screening. At post-test, however, intervention group physicians identified significantly fewer barriers to practice than control physicians (p<0.05). While overall, the educational visits to inner-city primary care physicians did not appear to significantly alter cancer prevention practices, there was a positive dose-response relationship among the subgroup of participants who received three or more project contacts.

CONCLUSIONS

We uncovered significant changes in attitude due to academic detailing among urban primary care physicians practicing in north Manhattan. A significant pre-test sensitization effect and small numbers may have masked overall changes in cancer prevention and screening behaviors among physicians due to the intervention.

Linked insurance-tumor registry database for health services research

OBJECTIVE

Breast cancer screening and treatment data are often limited to restricted populations, including women older than 65 years old. The goal of this project was to develop procedures to link tumor registry and insurance claims databases on women younger than 65 years old with breast cancer and to assess the accuracy and validity of the linked dataset.

METHODS

Iowa Cancer Registry (ICR) and Wellmark Blue Cross/Blue Shield of Iowa (BC/BS) membership files of women with incident in situ or invasive breast cancer from 1989 to 1996 were linked. An automated deterministic match was followed with visual inspection from three independent reviewers applying a matching protocol. Matched and overall registry data were compared to assess population representativeness. Claims from BC/BS for incident cases during 1994 were examined for coding of a recent breast cancer diagnosis or treatment.

RESULTS

The final dataset included 4,397 matched cases of patients aged 21 years and older from 1989 to 1996. The sociodemographic and tumor characteristics of the ICR population younger than 65 years old (n = 7,469) with breast cancer or carcinoma in situ were nearly identical with those of the matched patients younger than 65 years old (n = 3,449). Nearly all (96%) of the 445 matched incident cases in 1994 had claims data (CPT, DRG, or ICD-9 code) indicative of breast cancer. Treatment patterns varied by data source, with agreement ranging from 76% to 82%.

CONCLUSIONS

The validity and generalizability of these data demonstrate their potential for further health services research among younger insured women with breast cancer. Additionally, the process outlined may be useful for developing other datasets to study other cancers in the population younger than 65 years old.

Patient assertiveness and physician decision-making among older breast cancer patients

The objective of this study was to determine whether assertive patient behavior influences physician decision-making in the treatment of older breast cancer patients. One hundred and twenty-eight physicians saw videotapes depicting women seeking care for breast cancer and then recommended evaluation and treatment plans. Identical scripts were used, but the age, race, socioeconomic status, mobility, general health, and assertive behavior of the patients were experimentally varied along with the physician's specialty and length of practice. No direct effects of assertive patient behavior were seen. However, black, comorbid, and lower SES women were more likely to have full staging of their tumors ordered when they made an assertive request. Treatment recommendations also showed an interaction of assertiveness with patient's age and social class as well as physicians' specialty. The results indicate that a moderately assertive patient request may change provider behavior, although the effects of assertiveness vary most by what type of patient demonstrates this behavior. In particular, assertiveness led to more careful diagnostic testing for patients who came from groups that are "disadvantaged."

The effects of major depression and phobia on stage at diagnosis of breast cancer

OBJECTIVE

To examine the longitudinal effects of major depression and phobia on stage at diagnosis of subsequent breast cancer.

METHOD

Data from the New Haven Epidemiologic Catchment Area (ECA) study were linked to the Connecticut Tumor Registry (CTR). The sample comprised of seventy-two women with a first primary breast cancer diagnosed sometime after their baseline ECA study interview. In the ECA study, lifetime psychiatric history was assessed using the Diagnostic Interview Schedule based on DSM-III criteria. Stage at diagnosis of breast cancer was taken from CTR records and dichotomized into early stage (in situ and localized tumors) versus late stage (regional and distant tumors).

RESULTS

A positive history of major depression was associated with an increased likelihood of late-stage diagnosis of breast cancer (odds ratio [OR] = 9.81, p = 0.039), whereas a positive history of phobic disorders was associated with a decreased likelihood of late-stage diagnosis (OR = 0.01, p = 0.021), controlling for sociodemographic characteristics of the sample.

CONCLUSIONS

These analyses revealed a longitudinal association between reported lifetime psychiatric history and stage at diagnosis of subsequent breast cancer. Phobia may motivate women to adhere to breast cancer screening recommendations and to report suspicious symptoms to a physician without delay. Major depression, on the other hand, was identified as an important predictor of late-stage diagnosis; proper recognition and management of depression in the primary care setting may have important implications for breast cancer detection and survival.

Local recurrence and survival among black women with early-stage breast cancer treated with breast-conservation therapy or mastectomy

BACKGROUND

Black women with breast cancer have significantly worse survival rates and receive diagnoses at relatively younger ages, compared with white patients with breast cancer, in the United States. Young age at diagnosis has been associated with increased risk for local recurrence (LR) after breast-conservation therapy (BCT). The goal of this study was to evaluate the impact of age and BCT on LR and survival rates among black patients with breast cancer.

METHODS

The records for 363 black women treated for breast cancer (excluding stage IV disease) at a comprehensive cancer center were reviewed.

RESULTS

Fifty-eight percent of patients (n = 211) had tumors < or = 5 cm in diameter. Forty-two of these patients (19.9%) received BCT; the LR rate for this group was 9.8%. A total of 168 patients (79.6%) underwent mastectomy; the LR rate for this group was 8.9%. Data on the primary operation were unavailable for one patient. Five-year disease-free survival rates were similar for patients treated with BCT and those treated with mastectomy (88% and 73%, respectively). LR was associated with significant decreases in 5-year overall survival rates for both the BCT group (67% vs. 95%, P < .01) and the mastectomy group (43% vs. 76%, P < .01). LR and 5-year disease-specific survival rates were similar for patients <50 years of age and patients > or = 50 years of age, regardless of treatment.

CONCLUSIONS

LR and survival rates are not compromised by the use of BCT among black American patients. LR is associated with an increased risk of breast cancer death, regardless of treatment type. Younger age at diagnosis was not associated with an increased rate of LR after BCT in this series.

Mammographic appearance of breast cancer in African-American women: report of 100 consecutive cases

RATIONALE AND OBJECTIVES

The authors determined the mammographic appearance of breast carcinoma in African-American women and compared it with that in a white cohort.

MATERIALS AND METHODS

The authors reviewed the mammograms, clinical records, and pathology records of 97 consecutive African-American women with 100 confirmed breast cancers and 110 white women with 111 confirmed breast cancers.

RESULTS

The mammograms obtained in African-American women were positive in 94 cases (94%), and those obtained in white women were positive in 99 cases (89%). Forty-seven percent of malignancies in African-American women appeared as calcifications, alone or with a mass, and 41% appeared as a mass only. There was no statistically significant difference in the frequency of these two findings between the African-American and the white populations. There was no statistically significant difference in the breast parenchymal pattern between the two groups. The most common tumor location in both races was the upper outer quadrant.

CONCLUSION

Breast carcinoma in African-American women is similar to that in white women in terms of mammographic appearance, location, and breast density. The mammographic appearance should not be an impediment to the detection of breast cancer in African-American women.

Breast and cervical cancer screening among women with physical disabilities

OBJECTIVE

This article reports findings from the National Study of Women with Physical Disabilities about rates of screening for breast and cervical cancer and factors associated with regular screening in a large sample of women with a variety of physical disabilities and a comparison group of women without disabilities.

DESIGN

Case-comparison study using written survey. Data were analyzed using measures of central tendency, chi 2 analysis, logistic regression, and risk using odds ratios.

SETTING

General community.

PARTICIPANTS

A total of 843 women, 450 with disabilities and 393 of their able-bodied friends, aged 18 to 65, who completed the written questionnaire. The most common primary disability type was spinal cord injury (26%), followed by polio (18%), neuromuscular disorders (12%), cerebral palsy (10%), multiple sclerosis (10%), and joint and connective tissue disorders (8%). Twenty-two percent had severe functional limitations, 52% had moderate disabilities, and 26% had mild disabilities.

MAIN OUTCOME MEASURES

Outcomes were measured in terms of frequency of pelvic exams and mammograms.

RESULTS

Women with disabilities tend to be less likely than women without disabilities to receive pelvic exams on a regular basis, and women with more severe functional limitations are significantly less likely to do so. No significant difference was found between women with and without disabilities, regardless of severity of functional limitation, in receiving mammograms within the past 2 years. Perceived control emerged as a significant enhancement factor for mammograms and marginally for pelvic exams. Severity of disability was a significant risk factor for noncompliance with recommended pelvic exams, but not mammograms. Race was a significant risk factor for not receiving pelvic exams, but not mammograms. Household income and age did not reach significance as risk factors in either analysis.

CONCLUSIONS

Women with physical disabilities are at a higher risk for delayed diagnosis of breast and cervical cancer, primarily for reasons of environmental, attitudinal, and information barriers. Future research should focus on the subpopulations that were not surveyed adequately in this study, women with disabilities who have low levels of education or income, or who are of minority status.

Health promotion and early detection of cancer in older adults: needs assessment for program development

The greatest risk factor for developing cancer is age, yet little is known about the cancer-related knowledge, attitudes and beliefs of the older adult (age > 55 years). A community-based needs assessment was conducted to understand these dimensions in a large metropolitan community. Ten focus groups (n = 158 older adults) and 9 individuals were interviewed. Content analysis for the audiotaped sessions was completed. The study participants focused on "being active" and living a healthy lifestyle. Many worried about illness interfering with their ability to do what they wanted to do. Many had had exposure to cancer through family members or friends, but still had many unanswered questions about cancer. Age was not seen as a risk factor for cancer, and a range of attitudes existed regarding cancer prevention and early detection. Overall, despite fearing cancer, participants thought older adults needed to know about cancer and suggested a wide range of approaches to disseminate information effectively to older adults.

Physician characteristics: do they influence the evaluation and treatment of breast cancer in older women?

BACKGROUND

To determine if physician specialty, length of time in practice, and fear of malpractice influence the diagnosis and management of breast cancer in older women.

METHODS

We used a fractional factorial design that controlled for patient age (65 or 80 years), race, socioeconomic status, mobility, comorbidity, and assertive behavior through 2 videotaped scenarios (a potential breast cancer [no. 1] and a known stage IIA breast cancer [no. 2]). One hundred twenty-eight white male physicians equally divided by specialty (surgeon versus nonsurgeon) and time in practice (< or = 15 or >15 years) viewed the videotapes and made recommendations.

RESULTS

The physician subjects saw 46 patients per week, 59% female, and 47% age > or = 65. Their concern over malpractice was 4.7 (on a 10-point Likert scale with a higher score indicating more concern) and did not differ by specialty or time in practice (P values > 0.7). After viewing scenario no. 1, surgeons were less likely than nonsurgeons to consider breast cancer as the principal diagnosis (odds ratio [OR] = 0.4, 95% confidence interval [CI] = 0.2 to 0.9) and to obtain a tissue diagnosis (OR = 0.3, 95% CI = 0.1 to 0.9). However, in scenario no. 2, surgeons were more likely to offer reconstruction (OR = 3.8, 95% CI = 1.4 to 10.4). Physicians in practice < or = 15 years were more likely than those in practice <15 years to obtain a tissue diagnosis in scenario no. 1 (OR = 6.1, 95% CI = 1.9 to 19.2) and to perform full primary therapy in scenario no. 2 (OR = 2.8, 95% CI = 1.2 to 6.9). Physicians who performed an extensive metastatic evaluation (bone or computer tomography [CT] scan) had greater concern over malpractice than those who did not, as did physicians who performed an axillary node dissection (OR = 2.1, 95% CI 1.3 to 3.4 and OR = 1.8, 95% CI = 1.1 to 3.0).

CONCLUSIONS

With the uncertainty of how to diagnose and treat older women with breast cancer, physician specialty, length of time in practice, and concern over malpractice do influence clinical decisions.

Predicting mammography and breast self-examination in African American women

Breast cancer mortality is significantly greater in African American women than in their Caucasian counterparts. The purpose of this study was to identify variables associated with the breast cancer screening behaviors of mammography utilization and breast self-examination (BSE) in a convenience sample of low income African American women. A total of 328 African American women, living in a large midwestern metropolitan area, who were at < or = 150% of poverty level, and between the ages of 45 and 64 years were included in this study. Data were collected over a period of 18 months. Predisposing, enabling, and need variables from Anderson's theoretical framework included perceived susceptibility, benefits, barriers, confidence, knowledge, physician recommendation, demographic characteristics, and past experiences, as well as health-care and insurance information. Variables that significantly predicted mammography utilization included perceived barriers, mammography suggested by health-care professionals, recent thoughts about mammography, and a regular medical doctor. Variables that significantly predicted either frequency or proficiency of BSE included susceptibility, benefits, confidence, knowledge, barriers, and a regular physician. Implications for clinical practice include (a) recognizing predictors of screening among low-income African American women; (b) addressing culturally specific barriers, e.g., cancer fatalism, in order to increase compliance with screening; (c) establishing consistency in primary care providers; and (d) increasing confidence and knowledge through education.

Prognosis among African-American women and white women with lymph node negative breast carcinoma: findings from two randomized clinical trials of the National Surgical Adjuvant Breast and Bowel Project (NSABP)

BACKGROUND

A disparity in breast carcinoma survival between African-American and white women has been noted over the past several decades. A major factor implicated in this disparity is stage of disease at diagnosis. In this study, survival and related endpoints were examined among African-American women and white women with lymph node negative breast carcinoma who participated in two randomized clinical trials of the National Surgical Adjuvant Breast and Bowel Project (NSABP).

METHODS

Patients from two studies, one conducted among patients with estrogen receptor (ER) negative tumors and the other among patients with ER positive tumors, were included. Study goals were to determine whether African-Americans and whites had comparable outcomes, accounting for ER status and differences in patient characteristics at diagnosis, and to determine whether treatment response was similar for African-Americans and whites.

RESULTS

Five-year survival rates were 83% for African-Americans and 85% for whites among ER negative patients, and 93% for African-Americans and 92% for whites among ER positive patients. Rates of disease free survival (DFS) (i.e., time to disease recurrence, second primary cancer, or death) were 71% for African-Americans and 74% for whites at 5 years among ER negative patients, and 81% for African-Americans and 80% for whites among ER positive patients. African-Americans tended to have less favorable baseline prognostic characteristics. Adjusted relative risk (RR) estimates indicated similar prognosis for African-Americans compared with whites for mortality (African-American/white RR = 1.02 with 95% confidence interval [CI], 0.66-1.56 among ER negative patients; RR = 1.14 with 95% CI, 0.84-1.54 among ER positive patients) and DFS (RR = 0.98 with 95% CI, 0.70-1.37 for ER negative patients; RR = 0.96 with 95% CI, 0.75-1.22 for ER positive patients). Estimated percent reductions in DFS events for patients receiving adjuvant therapy were 32% for ER negative African-Americans, 36% for ER negative whites, 20% for ER positive African-Americans, and 39% for ER positive whites.

CONCLUSIONS

African-American and white patients with localized breast carcinoma had similar outcomes and benefited equally from systemic therapy. These results suggest that early detection and appropriate therapy among African-American patients could result in a reduction in the current disparity in breast carcinoma mortality between African-Americans and whites.

Effects of race and socioeconomic status on survival of 1,332 black, Hispanic, and white women with breast cancer

BACKGROUND

A survival disadvantage for black women with breast cancer, which persists after controlling for stage of the disease, has been reported. This study investigates the effects of race and socioeconomic status (SES) on breast cancer survival after controlling for age, stage, histology, and type of treatment.

METHODS

Kaplan-Meier and Cox proportional hazards models were used to analyze the interaction between race and SES in predicting survival in a sample of 163 black, 205 Hispanic and 964 white women with breast cancer treated at M.D. Anderson Cancer Center a (1987-1991).

RESULTS

The results of univariate and multivariate analyses indicate that race was not a significant predictor of survival after adjusting for SES and other confounding factors such as demographic and disease characteristics. SES remained a significant predictor of survival after all adjustments were made. There was no evidence of differences in type of treatment by race or SES if adjustments were made for stage.

CONCLUSIONS

These results suggest that institutional factors, such as access to treatment, do not explain survival differences by race or SES. Other factors associated with low SES, such as life-style and behavior, may affect survival.

Patient, physician and presentational influences on clinical decision making for breast cancer: results from a factorial experiment

This study examines the influence of six patient characteristics (age, race, socioeconomic status, comorbidities, mobility and presentational style) and two physician characteristics (medical specialty and years of clinical experience) on physicians' clinical decision making behaviour in the evaluation treatment of an unknown and known breast cancer. Physicians' variability and certainty associated with diagnostic and treatment behaviour were also examined. Separate analyses explored the influence of these non-medical factors on physicians' cognitive processes. Using a fractional factorial design, 128 practising physicians were shown two videotaped scenarios and asked about possible diagnoses and medical recommendations. Results showed that physicians displayed considerable variability in response to several patient-based factors. Physician characteristics also emerged as important predictors of clinical behaviour, thus confirming the complexity of the medical decision-making process.

"Sympathy for my body": breast cancer and mammography at two Atlanta clinics

This article examines beliefs about breast cancer and mammograms among low-income urban black women. Our research indicates that women associate breast cancer with domestic violence, believing that bruises resulting from physical abuse which is not reported or given medical attention can later turn into cancer. Some women fear that in "mashing" the breast, mammograms cause "knots" or bruises that can become cancerous. Mothers and daughters were found to have extensive knowledge of, and sense of responsibility for, each other's health. This bond can be used to encourage use of cancer screening procedures. While women assert that one's health is ultimately in God's hands, their faith appears to motivate health-seeking behavior rather than promote a fatalistic or passive orientation.

Breast cancer control among the underserved--an overview

This paper explores barriers to the use of standard screening and breast cancer treatment that result in systematic differences in health outcomes. We review available data on individual, socioeconomic, and health system determinants of access to standard breast cancer care, including screening, diagnostic, and treatment services. Based on this review, we discuss the combination of factors which result in underservice. We argue that a broad framework which considers health system and social class as well as individual factors is useful for analyzing how structures of health care delivery tend to provide less than standard care to women who are older, have less income, or are less educated, black, or Hispanic. Data collection efforts which do not include structural and socioeconomic variables may result in an incomplete or misleading understanding of the determinants of underservice. These factors also need to be considered in the design and evaluation of public health policies and interventions meant to ameliorate the effects of underservice.

The likelihood of returning to work after breast cancer

OBJECTIVE

This is an examination of factors associated with returning to work after the diagnosis of breast cancer.

METHODS

Three months after being diagnosed with breast cancer, 296 employed women from the Detroit metropolitan area (52 black and 244 white women) were interviewed. These women were part of a larger cohort of 1,011 breast cancer patients ages 40 to 84 interviewed for the study "Health and Functioning in Women with Breast Cancer".

RESULTS

Although most employed women returned to work within three months of the diagnosis of breast cancer, black women were twice as likely as white women to be on medical leave three months after diagnosis (OR = 1.94; 95% CI 1.04 to 3.62). Being on leave was found to be associated with the need for assistance with transportation, limitations in upper-body strength, and employment in jobs requiring physical activity. After adjusting for these factors, the racial difference was reduced and no longer statistically significant (OR = 1.34; 95% CI 0.67, 2.70).

CONCLUSION

Breast cancer rehabilitation programs should not only address the patient's physical capacity but also the daily demands she is likely to face once she leaves the hospital and returns to work.

Can mammography screening explain the race difference in stage at diagnosis of breast cancer?

BACKGROUND

A race difference in the stage at diagnosis of breast cancer is well established: African American women are less likely than white women to be diagnosed at a localized stage. The purpose of this study was to determine the extent to which the observed race (black/white) difference in stage at diagnosis of breast cancer could be accounted for by race differences in the mammography screening history.

METHODS

This was a population-based, retrospective study of 145 African American and 177 white women with newly diagnosed breast cancer in Connecticut, between January, 1987 and March, 1989. Cases were ascertained through active surveillance of 22 Connecticut hospitals.

RESULTS

Black women were diagnosed more commonly with later stage cancer (TNM stage > or = II) (age-adjusted odds ratio [OR] = 2.01, 95% confidence interval [CI] 1.24-3.24) than were white women. Blacks were also more likely than whites to report that they had not received a mammogram in the 3 years before development of symptoms or diagnosis (OR = 2.05, 95% CI 1.26-3.35); this association was not altered substantially with adjustment for socioeconomic status. In race-specific analyses, mammography was protective against later stage diagnosis in white women, but not in black women. With adjustment for mammography screening, the OR for the race-stage association was reduced only minimally, and race remained a significant predictor of stage at diagnosis.

CONCLUSIONS

In these population-based data, history of mammography screening was not an important explanatory variable in the race-stage association. Specifically, history of mammographic screening accounted for less than 10% of the observed black/white difference in stage at diagnosis of breast cancer.

The National Cancer Data Base report on cancer in Hispanics. Relationships between ethnicity, poverty, and the diagnosis of some cancers

BACKGROUND

Previous Commission on Cancer studies have examined time trends in stage of disease, treatment patterns, and survival for special populations. Reported herein are the most current National Cancer Data Base data for Hispanics.

METHODS

Two Calls for Data have yielded a total of 23,650 cancer reports for Hispanics from hospitals across the country.

RESULTS

There were differences in the relative frequency with which different cancer sites were reported among different Hispanic sub-populations. For seven of eight types of cancers studied, Hispanics had a less favorable stage of disease at first diagnosis than non-Hispanic whites.

CONCLUSIONS

Poverty may be an important factor affecting the outcome of different cancers. Ethnicity may have a different and additional impact on patients with cancer.

Breast cancer screening in older black women

The objective of this study was to report findings about older black women's responses to breast health education and screening. Findings were reported from a community-based intervention designed to improve breast screening services for women in Erie County, New York. A 34-foot mobile screening and education clinic was used to overcome barriers such as accessibility and cost. Results from a sample of 271 older black women showed that they participated in breast health education programs and received clinical breast examinations when these services were offered in their neighborhoods. However, there was low participation in screening mammography offered at a local hospital. Low participation was attributed to structural and functional barriers in the delivery system. This study emphasizes the particular importance of education and screening offered as one unit of service. Further, it emphasizes the need to examine older black women's reported experiences after participation in screening.

Racial and marital status influences on 10 year survival from breast cancer

The association of race and marital status with survival during a 10 year period after a breast cancer diagnosis is described. The data for this study were obtained from the Metropolitan Detroit Cancer Surveillance System, a participant in the National Cancer Institute's SEER program. The study sample was 10,778 women (85.6% white and 14.4% black) diagnosed with incident invasive breast cancer between 1973 and 1978. Marital status was significantly associated with race, but had only a weak relationship with length of survival in a multivariate model predicting 10 year survival. However, race was strongly related to survival. African American women were significantly more likely than white women to die from breast cancer after controlling for age at diagnosis, marital status, tumor stage, histologic type, treatment status, and the interaction of age with stage. Ten years after being diagnosed with breast cancer, 38.2% of whites, compared with 33.3% of blacks were still living. These data confirm a body of literature which finds that blacks experience a shorter survival period following a cancer diagnosis than do whites. However, the relationship of marital status to cancer survival is still unclear and needs further study.

Breast cancer screening in older African-American women: qualitative research findings

PURPOSE

The purpose of this study was to gain a better understanding of the cultural meanings that shape the breast cancer screening behavior of older African-American women.

DESIGN

Qualitative research methods elicited social and cultural themes related to breast cancer screening.

SETTING

Focus group interviews were conducted in the natural settings (churches, etc.) of older African-American women.

SUBJECTS

Interviews were conducted with 132 members from 14 social networks of older African-American women.

MEASURES

A focus group guide asked about 1) perceived risk of breast cancer, 2) behavioral intentions about breast cancer screening, 3) health seeking behavior, and 4) social support.

RESULTS

For older African-American women: other health concerns are of more concern than breast cancer; age is generally not recognized as a risk factor for breast cancer; fear of finding breast cancer and its social consequences are salient barriers to mammography; they tend to rely on breast self-exam rather than mammography to detect a breast problem; cost may be more an issue of competing priorities than cost per se; the tradition is to go to doctors for a problem, not prevention; and women in their own social networks are important sources of social support for health concerns.

CONCLUSIONS

These data offer explanations for mammography screening in older African-American women and emphasize the strength of naturally existing sources of social support for designing interventions to increase breast cancer screening.

A nurse-delivered intervention to reduce barriers to breast and cervical cancer screening in Chicago inner city clinics

An 18-month intervention was implemented to increase breast and cervical cancer screening among poor African-American women in Chicago. Breast and cervical cancer screening programs were set up in two public clinics, one community-based and the other hospital-based. Nurse clinicians and public health workers were used in these programs to recruit women in the clinics and in targeted community institutions to receive free breast and cervical cancer screening. The following barriers were specifically addressed by the intervention: accessibility of screening, knowledge about breast and cervical cancers, access to followup screening examinations, and access to treatment. A computerized followup system was specifically designed to track patients. During the 18 months of the intervention, 10,829 visits were made by 7,654 low-income women. A total of 84 cases of breast cancer and 9 cases of cervical cancer were detected. Awareness of the program, as measured by a survey after the completion of the intervention, increased in both clinics compared with baseline results. Knowledge about breast and cervical cancers also increased, as measured by scores on tests given before and after a class on breast and cervical cancers. Followup rates were 86 percent for women attending the programs. More than 90 percent of the women referred for evaluation of breast abnormalities kept an appointment. In summary, the intervention was successful in reducing barriers to breast and cervical cancer detection and in attracting a high-risk group of women.

Breast cancer screening in an urban public hospital. Five-year results

BACKGROUND

This report describes the first 5 years of the Breast Cancer Screening Program (BCSP) at Cook County Hospital (CCH), a hospital that serves a predominantly African-American and low-income population.

METHODS

A retrospective review of hospital cancer registry staging for breast cancers diagnosed between 1984 and 1988 was performed.

RESULTS

Between 1984 and 1988, 499 new breast cancers were diagnosed at CCH, of which 33% were diagnosed after referral from the BCSP. The percentage of early breast cancers, defined as Stages 0 or 1, was 25% in women referred from the BCSP, compared with 6% for women referred from other clinical areas (P < 0.001). During this same period of time, the proportion of women at CCH with localized breast cancer increased from 30% in 1980-1983 to 40% from 1984-1988 (P < 0.05), an increase that can be attributed to the BCSP. Only 21% of the breast cancers detected by the BCSP were found by mammography alone. Of these, 91% were localized.

CONCLUSIONS

The BCSP has had an impact on the proportion of early breast cancer diagnosed at CCH. Despite these efforts, the proportion of early breast cancer diagnosed at CCH (12%) is significantly less than that seen for all African-American women with breast cancer in Illinois (32%; P < 0.001).

Pathways to hospital death among the oldest old

Using the 1986 National Mortality Followback Survey (N = 2,090), this research examines the conditions under which the oldest old (85+ years of age) are discharged from a nursing home to enter and die in a hospital as well as the conditions under which community dwellers enter and die in a hospital. Given the need to plan for health services for this growing population and the recent policy changes in length of hospital stay, this analysis focuses on pathways leading to a hospital death. Results suggest that the factors that influence site of death are necessarily quite distinct for those who have entered the institutional long-term care system versus those who have not. Among institutionalized patients, the incidence of an acute condition appears to precipitate hospitalization, whereas among community dwellers, the presence of a social support network and the decedent's race are the only salient factors predicting hospital death. Implications are discussed.

Delay versus help seeking for breast cancer symptoms: a critical review of the literature on patient and provider delay

Patient delay in seeking help for breast cancer symptoms and provider delay in treating those symptoms combine to decrease a woman's potential for breast cancer survival. This paper reviews the literature on patient and provider delay published since 1975. Meta-analysis of 12 studies using common definitions of patient delay estimates that 34% of women with breast cancer symptoms delay help seeking for 3 or more months. Provider delay appears to be both under researched and underestimated. This review identifies the factors that have been advanced as contributing to patient and provider delay, evaluating the support for each of these reported findings. Theory-based hypotheses emerging from the reviewed studies highlight foci for future investigations.

Factors predicting stage of breast cancer at diagnosis in middle aged and elderly women: the role of living arrangements

We examined whether sociodemographic, health, and psychosocial factors predict stage at diagnosis in 444 women aged 55-84 with newly diagnosed, microscopically confirmed breast cancer. Stage was defined as local or advanced (regional or remote). One of the most interesting predictors of disease stage was living arrangement. The odds of being diagnosed with advanced disease were twice as great among women living with a spouse than among women living alone (95% CL = 1.16, 3.35), after adjusting for the effects of age, body mass index, income, comorbid conditions, smoking, and group membership. For those living with someone other than a spouse, the odds of advanced disease were 1.7 times greater than among those living alone (95% CL = 0.96, 3.06). Middle aged and older women who live alone may be more likely to monitor their own health and to use the health care system, and therefore have a greater chance of being diagnosed at an early stage of breast cancer.

Race and gender influences on the survival of patients with mouth cancer

Previous studies have shown that race and gender are important correlates of survival among patients with cancer of certain sites. Since race and gender influence the stage of disease at diagnosis and the choice of therapy it has been argued that survival differentials may not be real but instead, they represent secondary associations with clinical variables. Therefore, verification of the true prognostic effects of race and gender requires proper controlling for potential confounders, such as stage and treatment. We have studied the 15-year survival experience of a hospital-based cohort of 4527 patients diagnosed with cancer of the mouth over a 28-year period in Brazil. Race and gender were strong predictors of stage and treatment. The odds ratios for no treatment were 1.35 (95% confidence limits [CL]: 1.09, 1.66) for females and 1.63 (CL: 1.29, 2.06) for non-white patients even after adjustment by stage, presumably a key criterion to define treatment. Survival differentials were found for lip cancer, with respect to race, and for cancers of the gum, floor of mouth, and other oral subsites, with respect to gender. Non-whites experienced 2.1 times the risk of lip cancer recurrence (CL: 1.20, 3.61) and 2.3 times the risk of dying from it (CL: 1.29, 4.09) as compared to whites. However, controlling for stage and treatment modality variables by proportional hazards regression reduced the same risk ratios to 1.01 (CL: 0.57, 1.78) and 1.17 (CL: 0.65, 2.13), respectively. The survival advantage experienced by females (17% lower risk of recurrences and 29% lower risk of cancer deaths) regarding other oral sites was independent from the effect of clinical factors.

Effects of cognitive style and maintenance strategies on breast self-examination (BSE) practice by African American women

A convenience sample of 159 African American women, 18-45 years old, was trained to perform breast self-examination (BSE) and was categorized according to the participants' cognitive style (monitors/blunters). Participants were then randomly assigned to one of four groups differing in BSE maintenance strategy (self-management, positive reinforcement, both, or neither). Self-reported monthly compliance with BSE was subsequently assessed during a 9-month period. A significant interaction between maintenance strategies and cognitive style was found. For blunters, the highest compliance rates and the highest competency scores occurred in the group with no maintenance strategy, whereas for monitors, the highest compliance rates and competency scores were found in the groups receiving positive reinforcement and/or self-management strategies. Additional results indicate that high levels of BSE competency were achieved across conditions and that competency improved over time.

Determinants of need and unmet need among cancer patients residing at home

De-hospitalization of cancer treatment, particularly for those with advanced disease, can complicate adjustment and strain the capacity of caregiver networks to meet patients' daily needs. Outpatient staff should be able to recognize patients who need help to meet their daily needs as well as those who are not getting enough help. This study describes the physiological and social determinants of need and unmet need for assistance among 629 cancer patients with advanced disease initiating a course of outpatient chemotherapy and/or radiation therapy. Areas of needs examined through telephone interviews with participating patients were: personal care, instrumental tasks (housework, shopping, and cooking), and transportation. Physiological factors (metastases, disease stage, and functional status) were associated with need for assistance in all three areas. Also, older age (over 65) and low income predicted need for help with personal care, and women were more likely than men to report illness-related need for assistance with instrumental tasks and transportation. Unmet need was primarily associated with patients' social support system (e.g., children living nearby and perceived resiliency of network helpers). These findings highlight the need for outpatient staff to evaluate patients' informal care resources as well as patients' symptoms and impairments in deciding who should be referred for home care services.

Urban black women's perceptions of breast cancer and mammography

The purpose of this study was to examine differences in perceptions of breast cancer and mammography between black women who wanted a mammogram and those who did not. The subjects were 186 low socioeconomic black women who attended an inner city community health clinic (83% response rate). There were no significant differences on the demographic and background variables between women who did (N = 139) and did not (N = 47) want a mammogram. The knowledge level of both groups regarding breast cancer was poor. Those who desired a mammogram perceived themselves as more susceptible to breast cancer, and considered breast cancer more severe than those who did not want a mammogram. Neither group identified many barriers to obtaining a mammogram. The majority (at least 88 percent of those who wanted a mammogram and at least 55 percent of those who did not) agreed with each of the five benefit items. Eighty-five percent of both groups agreed they would receive a mammogram if their physician told them to do so. The two Health Belief Model components which accounted for the largest percentage of the variance between women who wanted a mammogram and those who did not were perceived benefits (13 percent) and perceived susceptibility (3 percent).

A collaborative study of differences in the survival rates of black patients and white patients with cancer

In 1983, the National Cancer Institute began a social-epidemiologic study of possible behavioral and biologic determinants of black/white racial disparities in cancer survival. The design, methodology, underlying hypotheses, and patient accrual of this study are discussed. Survival differences in four organ sites are investigated: cancers of the uterine corpus, breast, bladder, and colon. The first three sites were chosen because of significant observed black/white differentials in survival. Although racial disparities in survival from colon cancer are less prominent, this site was included because it is a leading cause of deaths attributable to cancer, because regional variations have been observed in black/white survival disparities, and because colon data permit cross-gender comparisons. Data collection centers for the study included the Georgia Center for Cancer Statistics, the Louisiana Tumor Registry, and the California Tumor Registry. Probability samples of patients newly diagnosed with these cancers were drawn from the areas served by these registries. Diagnostic years of eligibility were 1985 to 1986 for breast and colon cancer, and 1985 to 1987 for bladder and uterine corpus cancer. Data were collected by personal interview, medical records abstract, physician records, and pathology review. Analyses focus on seven main explanatory hypotheses.

The prognostic significance of race and survival from prostate cancer based on patients irradiated on Radiation Therapy Oncology Group protocols (1976-1985)

A number of studies have identified race as a prognostic factor for survival from prostate cancer. To evaluate the prognostic significance of race in a controlled setting, we evaluated 1294 patients treated on three prospective randomized trials conducted by the Radiation Therapy Oncology Group between 1976 to 1985. One-hundred and twenty (9%) of the patients were coded as black, while 1077 (83%) of the patients were coded as white. Protocol 7506 included 607 patients with clinical Stage T3-T4Nx or T1b-T2N1-2. Protocol 7706 included 484 patients with clinical Stage T1b or T2 who were node negative. Protocol 8307 included 203 Stage T2b-T4 patients with no lymph node involvement beyond the pelvis. Univariate and multivariate analyses were used to assess the possible independent significance of race and other prognostic factors, including Gleason score, serum acid phosphatase, nodal status, and hormonal status. Protocols 7706 and 8307 revealed that race was not of prognostic significance for disease-free or overall survival by either univariate or multivariate analysis. Univariate analysis of Protocol 7506 revealed that the median survival for blacks was somewhat shorter (5.4 years vs. 7.1 years, p = 0.02). This difference persisted after a multivariate analysis. A higher percentage of blacks treated on 7506 had an abnormally elevated serum acid phosphatase compared to whites (p = 0.006), and the time to distant failure tended to be shorter (p = 0.07). These findings suggest that blacks treated on 7506 may have had more extensive disease at presentation. Based on these prospective randomized trials, it is most likely that the lower survival noted for black Americans with prostate cancer reflects the tendency for blacks to present with more advanced disease. Differences in access to care, the quality of care received, and the impact of co-morbid conditions may explain the lower survival reported for black Americans elsewhere in the literature.

Breast cancer screening behaviors and attitudes in three racial/ethnic groups

Data from a multiethnic sample of women participating in the American Cancer Society 1987 Texas Breast Screening Project was used to compare attitudes and behaviors related to breast cancer screening for whites, blacks, and Hispanics. In general, similar patterns of association were observed across racial/ethnic groups between a number of demographic and risk factors and prior mammography and recent clinical breast examination (CBE), although the magnitude of the associations varied somewhat across groups. Reasons for not having had prior mammography also were similar across groups, with lack of physician referral and cost cited as the two most important reasons. However, Hispanics were less likely than blacks or whites to report prior breast cancer screening, including mammography, CBE, and breast self-examination (BSE). This study demonstrated that women of different racial/ethnic backgrounds can be successfully recruited to participate in a patient-initiated, community-based program. However, this programmatic approach requires augmentation with other intervention strategies designed to reach low-income women because women with more years of education and higher family income were overrepresented in all three groups.

Patterns of breast and cervical cancer screening at three public health centers in an inner-city urban area

In an effort to examine breast and cervical cancer screening patterns among poor African-American urban women, medical records were abstracted at three public health centers located in the inner city of Chicago. The proportions of eligible women at these three centers who received Pap smears, breast examinations, and mammograms were computed. These proportions were notably low and differed significantly among the three centers. Because the literature is now suggesting that an appropriate sequence best defines adequate screening, sequences of screenings were also determined and were found to be lacking. All of these screening histories fall far below the screening objectives set by the National Cancer Institute for the year 2000. This information suggests that interventions are needed that will help health centers serving poor women to deliver more frequent cancer screening.

Racial differences in the early detection of breast cancer in metropolitan Detroit, 1978 to 1987

This population-based study presents trends in stage at diagnosis of invasive female breast cancer during the decade from 1978 to 1987 in the Detroit metropolitan area. Its purpose is to determine whether there has been an increase in early breast cancers: those that are smaller than 2 cm at diagnosis and have no axillary lymph node involvement. Trend analyses of tumor size, node status, year of diagnosis, age, and race were performed for 17,216 incident cases drawn from the Metropolitan Detroit Cancer Surveillance System (MDCSS). Although trends toward earlier diagnosis of breast cancer are observed, less improvement is seen for black women than white women in the presentation of breast cancer at smaller, node-free stages. Implications for breast cancer screening are discussed.