Employer-Based Screening for Diabetes and Prediabetes in an Integrated Health Care Delivery System: A Natural Experiment for Translation in Diabetes (NEXT-D) Study.

Objective: This study evaluates an employer-based diabetes/prediabetes screening intervention that invited at-risk employees via letters, secure e-mails, and automated voice messages to complete blood glucose testing at a health plan facility.

Methods: Quasi-experimental cohort study among health plan members insured by two employers that received the intervention and three employers that were selected as control sites.

Results: The proportion of at-risk members that completed a screening was higher in the intervention group than in the control group (36% vs 13%, P < 0.