Identifying persons with treated asthma using administrative data via latent class modelling.

ABSTRACT:

Objective

To develop a parsimonious model of the respiratory patient population in British Columbia (BC), Canada through latent class modelling (LCM), using administrative data records and to assess conventional case definitions for asthma in relation to model-based case selection.

Data sources

1996-2001 data from linked provincial databases containing fee-for-service physician billing records, hospital inpatient separation abstracts, and prescription drug purchase records for 1.9 million BC respiratory patients.

Study design

This is a retrospective methodological/descriptive study that assesses case definitions for asthma in terms of sensitivity and specificity using a model fitted to seven physician, hospital and medication utilization markers in place of a conventi

SUBMITTER: Prosser RJ 

PROVIDER: S-EPMC2442362 | biostudies-literature | 2008 Apr

REPOSITORIES: biostudies-literature