Volume 47 | Number 1pt1 | February 2012

Abstract List

Julia C. Prentice, B. Graeme Fincke, Donald R. Miller, Steven D. Pizer Ph.D.


The aim of this study was to measure the relationship between days spent waiting for primary care and health outcomes among patients diagnosed with diabetes, especially among the elderly population.

Data Source

Secondary data from administrative databases and Medicare claims.

Study Design

This is a retrospective observational study. Outcome variables include primary care utilization, mortality, heart attack, stroke, and ambulatory‐care sensitive condition () hospitalization. The main explanatory variable of interest is primary care wait time. Negative binomial models predict utilization and stacked logistic regression models predict the probability of experiencing each health outcome. Models are stratified by the presence of a selected health condition and age.

Principal Findings

Longer wait times were predicted to decrease utilization between 2 and 4 percent. There was no significant relationship between wait times and health outcomes for the overall sample. In stratified analyses, longer waits were associated with undesirable outcomes for those over age 70 with one of the selected health conditions or in certain narrower 5‐year age groups, but the overall pattern of results does not indicate a systematic and significant effect.


There was a modest effect of long wait times on primary care utilization but no robust effect of longer wait times on health outcomes. Waiting for care did not significantly compromise long‐term health outcomes for veterans with diabetes.