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Table 2 Baseline cohort characteristics for the electronic diabetes case-finding model*

From: Identifying patients with diabetes and the earliest date of diagnosis in real time: an electronic health record case-finding algorithm

Characteristics Derivation Validation P-value**
n 1417 341  
Age, mean years (SD) 49.3 (14.4) 45.0 (14.6) <.001
Race/ethnicity,%    .83
   Hispanic 44 40  
   White 23 24  
   Black 25 27  
   Other 9 9  
Male,% 47 52 .13
Primary payer,%    .15
   Commercial 18 16  
   Medicare 9 6  
   Medicaid 13 13  
   Self-pay 30 29  
   Charity 30 36  
Encounters, mean no. (SD)    
   All 7.86 (9.03) 6.65 (9.06) .01
   Primary care 2.25 (3.90) 1.99 (3.60) .45
   Specialty care 4.31 (6.86) 3.62 (7.08) .02
   Urgent care and ED 0.81 (2.58) 0.61 (0.89) .48
   Inpatient 0.49 (0.97) 0.43 (0.88) .25
  1. *Derivation and validation cohorts defined as per Figure 1.
  2. **Student t-test for age; χ 2 tests for race/ethnicity, male sex, and primary payer; Wilcoxon rank-sum test for encounters.