Table 1.
Baseline characteristics of U-M employees, dependents, and retirees ≥18 years of age with Premier Care insurance, without diabetes stratified by prediabetes status
| Total | No prediabetes | Prediabetes | P value | |
|---|---|---|---|---|
| N (%) | 64,131 | 57,395 (89) | 6,736 (11) | — |
| Age (years) | 39 ± 14 | 38 ± 13 | 50 ± 12 | <0.0001 |
| Sex | <0.0001 | |||
| Women | 35,244 (55) | 31,338 (55) | 3,906 (58) | |
| Men | 28,887 (45) | 26,057 (45) | 2,830 (42) | |
| Race | <0.0001 | |||
| Asian | 3,382 (8) | 2,851 (8) | 531(10) | |
| Black | 2,688 (7) | 2,229 (6) | 459 (8) | |
| White | 34,575 (84) | 30,227 (84) | 4,348 (80) | |
| Other | 651 (2) | 579 (2) | 72 (1) | |
| At least one PCP visit in past year | 34,574 (54) | 28,654 (50) | 5,920 (88) | <0.0001 |
| At least one specialist visit in past year | 29,687 (46) | 25,046 (44) | 4,641 (69) | <0.0001 |
| BMI (kg/m2) | 28.3 ± 6.7 | 27.6 ± 6.3 | 32.4 ± 7.3 | <0.0001 |
| Blood pressure (mmHg) | ||||
| Systolic | 120 ± 15 | 119 ± 15 | 125 ± 15 | <0.0001 |
| Diastolic | 72 ± 10 | 72 ± 10 | 75 ± 10 | <0.0001 |
| Cholesterol (mg/dL) | ||||
| Total cholesterol | 194 ± 38 | 194 ± 38 | 194 ± 39 | 0.7565 |
| HDL | 55 ± 16 | 56 ± 17 | 52 ± 15 | <0.0001 |
| Women | 61 ± 16 | 63 ± 17 | 57 ± 15 | <0.0001 |
| Men | 48 ± 13 | 49 ± 13 | 46 ± 12 | <0.0001 |
| Triglycerides | 129 ± 88 | 122 ± 87 | 147 ± 91 | <0.0001 |
| LDL | 113 ± 32 | 113 ± 32 | 113 ± 33 | 0.8387 |
| HbA1c (%) | 5.7 ± 0.6, N = 9,134 (14) | 5.3 ± 0.5, N = 4,504 (8) | 5.8 ± 0.5, N = 4,630 (69) | <0.0001 |
| Claims diagnosis | ||||
| Overweight/obesity | 8,598 (13) | 6,223 (11) | 2,375 (35) | <0.0001 |
| Hypertension | 8,108 (13) | 5,539 (10) | 2,569 (38) | <0.0001 |
| Any antihypertensive medication | 8,168 (13) | 5,761 (10) | 2,407 (35) | <0.0001 |
| Dyslipidemia | 6,651 (10) | 4,062 (7) | 2,389 (35) | <0.0001 |
| Any lipid-lowering medication | 3,619 (6) | 2,232 (4) | 1,387 (20) | <0.0001 |
| Smoking | 1,737 (3) | 1,271 (2) | 466 (7) | <0.0001 |
| Women | 850 (2) | 624 (2) | 226 (6) | <0.0001 |
| Men | 887 (3) | 647 (2) | 240 (8) | <0.0001 |
| Cardiovascular disease | 1,917 (3) | 1,219 (2) | 698 (10) | <0.0001 |
| Geocoded indicators | ||||
| Median neighborhood income ($) | 70,228 | 70,290 | 69,704 | 0.0123 |
| Percent unemployment | 35.3 ± 5.0 | 35.4 ± 5.0 | 35.0 ± 4.7 | <0.0001 |
| Percent receiving food stamps | 7.9 ± 6.0 | 7.7 ± 5.9 | 8.7 ± 6.6 | <0.0001 |
Data are n (%) or mean ± SD.