Exploring the effects of transfers and readmissions on trends in population counts of hospital admissions for coronary heart disease: a Western Australian data linkage study.

ABSTRACT: OBJECTIVES:To develop a method for categorising coronary heart disease (CHD) subtype in linked data accounting for different CHD diagnoses across records, and to compare hospital admission numbers and ratios of unlinked versus linked data for each CHD subtype over time, and across age groups and sex. DESIGN:Cohort study. DATA SOURCE:Person-linked hospital administrative data covering all admissions for CHD in Western Australia from 1988 to 2013. MAIN OUTCOME:Ratios of (1) unlinked admission counts to contiguous admission (CA) counts (accounting for transfers), and (2) 28-day episode counts (accounting for transfers and readmissions) to CA counts stratified by CHD subtype, sex and age group. RESULTS:In all CHD subtypes, the ratios changed in a linear or quadratic fashion over time and the c

SUBMITTER: Lopez D 

PROVIDER: S-EPMC5701992 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature