Primary care and survival among American Indian patients with diabetes in the Southwest United States: Evaluation of a cohort study at Gallup Indian Medical Center, 2009-2016.

OBJECTIVES: To evaluate the role of primary care healthcare delivery on survival for American Indian patients with diabetes in the southwest United States.

METHODS: Data from patients with diabetes admitted to Gallup Indian Medical Center between 2009 and 2016 were analyzed using a log-rank test and Cox Proportional Hazards analyses.

RESULTS: Of the 2661 patients included in analysis, 286 patients died during the study period. Having visited a primary care provider in the year prior to first admission of the study period was protective against all-cause mortality in unadjusted analysis (HR (95% CI)=0.47 (0.31, 0.73)), and after adjustment. The log-rank test indicated there is a significant difference in overall survival by primary care engagement history prior to admission (p<0.001). The median survival time for patients who had seen a primary care provider was 2322days versus 2158days for those who had not seen a primary care provider.

CONCLUSIONS: Compared with those who did not see a primary care provider in the year prior to admission, having seen a primary care provider was associated with improved survival after admission.