Epidemiology Commons^™

The Supply Of Physicians And Care For Breast Cancer In Ontario And California, 1998 To 2006, Kevin M. Gorey, Isaac N. Luginaah, Caroline Hamm, Madhan K. Balagurusamy, Eric J. Holowaty

Social Work Publications

INTRODUCTION: We examined the differential effects of the supply of physicians on care for breast cancer in Ontario and California. We then used criteria for optimum care for breast cancer to estimate the regional needs for the supply of physicians.

METHODS: Ontario and California registries provided 951 and 984 instances of breast cancer diagnosed between 1998 and 2000 and followed until 2006. These cohorts were joined with the supply of county-level primary care physicians (PCPs) and specialists in cancer care and compared on care for breast cancer.

RESULTS: Significant protective PCP thresholds (7.75 to = 8.25 PCPs per 10 000 …

Associations Of Physician Supplies With Colon Cancer Care In Ontario And California, 1996 To 2006, Kevin M. Gorey

Social Work Publications

BACKGROUND: This study examined the differential effects of physician supplies on colon cancer care in Ontario and California. The associations of physician supplies with colon cancer stage at diagnosis, receipt of surgery and adjuvant chemotherapy, and 5-year survival were observed within each country and compared between-country.

METHODS: Random samples of Ontario and California cancer registries provided 2,461 and 2,200 colon cancer cases that were diagnosed between 1996 and 2000, and followed until 2006. Both registries included data on the stage of disease at the time of diagnosis, receipt of cancer-directed surgery, receipt of adjuvant chemotherapy, and survival. Census tract-level data …