Biomaterial Database

Ethnic variation in cholecystectomy rates and outcomes, Manitoba, Canada, 1972-84. 1989

M M Cohen, and T K Young, and K M Hammarstrand

Department of Community Health Sciences, University of Manitoba, Winnipeg, Canada.

We used population-based data from the Province of Manitoba's universal health insurance plan to compare the cholecystectomy experience of Native Americans and non-Natives from 1972 to 1984. The age-adjusted cholecystectomy rates for Native females were higher than for non-Native females with the peak rate occurring at age 30-39 for Native Americans and at age 60-69 for non-Natives. The rates for males were three times lower than for females and did not differ between Natives and non-Natives. Native Americans were more likely readmitted to hospital for surgical complications than non-Natives and this held true after controlling for age, sex, rural versus urban residence, teaching versus non-teaching hospital, multiple discharge diagnoses or complex versus simple cholecystectomy (relative odds 1.46, 95 per cent confidence interval 1.17, 1.18). The explanation for the relatively high rates of cholecystectomy among Native American females may be related to high rates of known risk factors for gallstone disease (such as obesity and high parity). However, the higher rates of surgical complications require further study.

UI	MeSH Term	Description	Entries
D007198	Indians, North American	Members of indigenous North American populations with pre-colonial contact origins.	Amerinds, North American,Indigenous North Americans,American Indian, North,American, Indigenous North,Amerind, North American,Indian, North American,Indigenous North American,North American Amerind,North American Amerinds,North American Indian,North American Indians,North American, Indigenous
D008297	Male		Males
D008350	Manitoba	A province of Canada, lying between the provinces of Saskatchewan and Ontario. Its capital is Winnipeg. Taking its name from Lake Manitoba, itself named for one of its islands, the name derived from Algonquian Manitou, great spirit. (From Webster's New Geographical Dictionary, 1988, p724 & Room, Brewer's Dictionary of Names, 1992, p332)
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D010359	Patient Readmission	Subsequent admissions of a patient to a hospital or other health care institution for treatment.	Hospital Readmission,Rehospitalization,Unplanned Hospital Readmissions,Unplanned Readmission,30 Day Readmission,Hospital Readmissions,Readmission, Hospital,Readmissions, Hospital,Thirty Day Readmission,30 Day Readmissions,Hospital Readmission, Unplanned,Hospital Readmissions, Unplanned,Readmission, Patient,Readmission, Thirty Day,Readmission, Unplanned,Rehospitalizations,Thirty Day Readmissions,Unplanned Hospital Readmission,Unplanned Readmissions
D011183	Postoperative Complications	Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.	Complication, Postoperative,Complications, Postoperative,Postoperative Complication
D002763	Cholecystectomy	Surgical removal of the GALLBLADDER.	Cholecystectomies
D005006	Ethnicity	A group of people with a common cultural heritage that sets them apart from others in a variety of social relationships.	Ethnic Groups,Nationality,Ethnic Group,Nationalities
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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