Social and Behavioral Sciences Commons^™

Breast Cancer Survival In Canada And The Usa: Meta-Analytic Evidence Of A Canadian Advantage In Low-Income Areas, Kevin M. Gorey

Social Work Publications

BACKGROUND: This study tested the hypothesis that relatively poor Canadian women with breast cancer have a survival advantage over their counterparts in the USA.

METHODS: Seventy-eight independent retrospective cohort (incidence between 1984 and 2000, followed until 2006) outcomes were synthesized. Fixed effects meta-regression models compared women with breast cancer in low-income areas of Canada and the USA.

RESULTS: Low-income Canadian women were advantaged on survival [rate ratio (RR) = 1.14; 95% confidence interval (CI) 1.13-1.15] and their advantage was even larger among women <65 years of age who are not yet eligible for Medicare coverage in the USA (RR = 1.21, 95% CI 1.18-1.24). Canadian advantages were also larger for node positive breast cancer, which may present with greater clinical and managerial discretion (RR = 1.40, 95% CI 1.30-1.50), and smaller when Hawaii, the state providing the most Canadian-like access, was the US comparator (RR = 1.12, 95% CI 1.01-1.20).

CONCLUSIONS: More inclusive health care insurance coverage in Canada vs the USA, particularly among each country's relatively …

Lower Adherence To Screening Mammography Guidelines Among Ethnic Minority Women In America: A Meta-Analytic Review, Rebecca J. Purc-Stephenson, Kevin M. Gorey

Social Work Publications

OBJECTIVE: This study investigates the association between ethnic minority status and receiving a screening mammogram within the past 2 years among American women over 50.

METHOD: The findings from 33 studies identified from interdisciplinary research databases (1980 to 2006) were synthesized. Separate pooled analyses compared white non-Hispanics to African Americans (28 outcomes), Hispanics (18 outcomes), and Asian/Pacific Islanders (10 outcomes).

RESULTS: Using the random effects model, results showed that African Americans were screened less than white non-Hispanics at a marginal level (OR 0.87, 95% CI 0.75, 1.00). Larger and significant discrepancies were observed for Hispanics (OR 0.65, 95% CI 0.50, …

Cancer Survival In Ontario, 1986-2003: Evidence Of Equitable Advances Across Most Diverse Urban And Rural Places, Kevin M. Gorey

Social Work Publications

OBJECTIVES: This study examined whether place and socio-economic status had differential effects on the survival of women diagnosed with breast cancer in Ontario during the 1980s and the 1990s.

METHODS: The Ontario Cancer Registry provided 29,934 primary malignant breast cancer cases. Successive historical cohorts (1986-1988 and 1995-1997) were, respectively, followed until 1994 and 2003. Diverse places were compared: the greater metropolitan Toronto area, other cities, ranging in size from 50,000 to a million people, smaller towns and villages, and rural and remote areas. Socio-economic data for each woman's residence at the time of diagnosis were taken from population censuses.

RESULTS: …

An International Comparison Of Cancer Survival: Metropolitan Toronto, Ontario, And Honolulu, Hawaii, Kevin M. Gorey

Social Work Publications

OBJECTIVES: Comparisons of cancer survival in Canadian and US metropolitan areas have shown consistent Canadian advantages. This study tests a health insurance hypothesis by comparing cancer survival in Toronto, Ontario, and Honolulu, Hawaii.

METHODS: Ontario and Hawaii registries provided a total of 9190 and 2895 cancer cases (breast and prostate, 1986-1990, followed until 1996). Socioeconomic data for each person's residence at the time of diagnosis were taken from population censuses.

RESULTS: Socioeconomic status and cancer survival were directly associated in the US cohort, but not in the Canadian cohort. Compared with similar patients in Honolulu, residents of low-income areas in …

Gorey, K. Association Between Socioeconomic Status And Cancer Incidence In Toronto, Ontario: Possible Confounding Of Cancer Mortality By Incidence And Survival, Kevin M. Gorey

Social Work Publications

OBJECTIVE: To observe the association between socioeconomic status (SES) and cancer incidence in a cohort of Canadians.

DESIGN: Cases of primary malignant cancer (83,666) that arose in metropolitan Toronto, Ont., from 1986 to 1993 were ascertained by the Ontario Cancer Registry and linked by residence at the time of diagnosis to a census-based measure of SES. Socioeconomic quintile areas were then compared by cancer incidence.

RESULTS: Significant associations between SES and cancer incidence in the hypothesized direction--greater incidence in low-income areas--were observed for 15 of 23 cancer sites.

CONCLUSIONS: These findings, together with the recently observed consistent pattern of significant …

Cancer Differentials Among Us Blacks And Whites: Quantitative Estimates Of Socioeconomic-Related Risks, Kevin M. Gorey

Social Work Publications

This article analyzes 10 studies that assessed the association of socioeconomic status (SES) with cancer occurrence among blacks and whites in the United States. The following summative inferences were made: the associations of SES with cancer are similar among blacks and whites; cancers of organ sites with the most intimate environmental interfaces have the strongest SES-cancer associations (stomach, lung, cervix, and rectum); the prevalence of exposure to low socioeconomic-related risks such as poverty are approximately fourfold greater among blacks; the all-site population attributable risk percent due to low socioeconomic exposure among blacks is estimated to be four times that of …