Age and gender differences in the impact of diabetes on the prevalence of ischemic heart disease: a population-based register study.

Objective: To explore age and gender differences in the impact of diabetes on the prevalence of ischemic heart disease (IHD) in a defined population.

Methods: Data were obtained from an administrative health care register covering a population of about 415,000. The study included all patients aged 45-74 years diagnosed between 1999 and 2003 with IHD (n=11,311) and diabetes (n=10,364) by physicians at all primary health care centres (PHCs) and out- and inpatient clinics at all hospitals in the county of Ostergötland, Sweden.

Estimating disease prevalence using a population-based administrative healthcare database.

Aims: In Ostergötland County, Sweden, all data on hospital care and primary healthcare (PHC) have been entered in a diagnosis-related administrative database since 1999. This database was used to estimate the prevalence of four chronic diseases and to examine the capture of data in PHC, outpatient hospital care, and inpatient hospital care, considered in different time frames.

Methods: A case-finding algorithm identified patients with at least one healthcare contact involving a diagnosis of diabetes, hypertension, asthma, or chronic obstructive pulmonary disease (COPD) in 1999-2003.