Table 1.
Demographics and Odds of Having A1c Screening for Diabetes for 71,433 Primary Care Patients Eligible for Diabetes Screening (40-70 years Old, Body Mass Index (BMI) ≥25 kg/m2, No Diagnosis of Diabetes On Start of Study, Not Pregnant During the Study).
| Overall N = 71 433 | A1c done N = 22 379 (31.3%) | A1c not done N = 49 054 (68.7%) | Unadjusted OR (95% CI) | Adjusted OR (95% CI) | |
|---|---|---|---|---|---|
| Age, years* † | 55.8 (8.0) | 57.0 (7.8) | 55.3 (7.9) | 1.03 (1.03-1.03) | 1.01 (1.01-1.02) |
| Female sex ‡ § | 38 843 (54.4%) | 11 624 (51.9%) | 27 219 (55.5%) | 0.87 (0.84-0.9) | 0.85 (0.82-0.88) |
| Non-white race ‡ ‖ | 9053 (12.7%) | 3145 (14.5%) | 5908 (12.5%) | 1.19 (1.13-1.24) | 1.15 (1.09-1.23) |
| Hispanic ethnicity ‡ ¶ | 7327 (10.3%) | 2709 (12.3%) | 4618 (9.7%) | 1.32 (1.25-1.39) | 1.31 (1.22-1.4) |
| Internal Medicine PCP ‡ # | 31 143 (43.6%) | 9797 (43.8%) | 21 346 (43.5%) | 1.01 (0.98-1.04) | 1.04 (1.0-1.08) |
| Insurance ‡ | |||||
| Commercial | 46 662 (65.3%) | 13 409 (60.3%) | 33 253 (68.3%) | Ref | Ref |
| Medicaid | 6710 (9.4%) | 2287 (10.3%) | 4423 (9.1%) | 1.28 (1.21-1.35) | 1.25 (1.17-1.34) |
| Medicare | 15 214 (21.3%) | 5848 (26.3%) | 9366 (19.2%) | 1.55 (1.49-1.61) | 1.15 (1.09-1.21) |
| Self-pay | 2375 (3.3%) | 711 (3.2%) | 1664 (3.4%) | 1.06 (0.97-1.16) | 1.05 (0.94-1.16) |
| Comorbidities ‡ | |||||
| Hypertension | 30 945 (43.3%) | 12 394 (55.4%) | 18 551 (37.8%) | 2.04 (1.98-2.11) | 1.38 (1.33-1.43) |
| Hyperlipidemia | 29 299 (41%) | 11 982 (53.5%) | 17 317 (35.3%) | 2.11 (2.05-2.18) | 1.61 (1.55-1.67) |
| Prediabetes | 8299 (11.6%) | 6507 (29.1%) | 1792 (3.7%) | 10.8 (10.2-11.4) | 8.78 (8.27-9.3) |
| Polycystic ovarian syndrome | 140 (0.2%) | 78 (0.3%) | 62 (0.1%) | 2.76 (1.98-3.86) | 2.81 (1.92-4.12) |
| History gestational diabetes | 152 (0.2%) | 100 (0.4%) | 52 (0.1%) | 4.23 (3.02-5.92) | 5.95 (4.09-8.64) |
| BMI ≥30 kg/m2 | 39 451 (55.2%) | 14 810 (66.8%) | 24 641 (51.3%) | 1.91 (1.85-1.97) | 1.13 (1.08-1.19) |
| Obesity on problem list | 15 921 (22.3%) | 7327 (32.7%) | 8594 (17.5%) | 2.29 (2.21-2.38) | 1.43 (1.36-1.5) |
| BMI (kg/m2)* † | 32.1 (6.1) | 33.7 (6.7) | 31.4 (5.6) | 1.06 (1.06-1.06) | 1.04 (1.03-1.04) |
*
Variable reported as mean (SD).
†
Change in odds of diagnosis with each unit increase in continuous variable.
‡
Variable reported as n (%).
§
Reference to male sex.
‖
Reference to white race.
¶
Reference to non-Hispanic ethnicity.
#
Reference to Family Medicine PCP.