Table 1.
Baseline characteristics by ACR quartiles
| ACR quartiles |
||||||
|---|---|---|---|---|---|---|
| Overall (mg/g) | ≤3.7 mg/g | 3.7 to ≤5.5 mg/g | 5.5 to ≤9.7 mg/g | >9.7 mg/g | P | |
| n | 3,188 | 772 | 818 | 798 | 800 | |
| Sex (% female) | 2,158 (68) | 453 (59) | 536 (66) | 595 (75) | 574 (72) | <0.001 |
| Age (years) | 50.6 ± 10.7 | 50.0 ± 10.6 | 50.3 ± 10.4 | 50.6 ± 10.5 | 51.6 ± 11.1 | 0.02 |
| BMI (kg/m2) | 32.5 ± 8.5 | 31.8 ± 7.2 | 32.4 ± 7.1 | 32.3 ± 7.1 | 33.5 ± 7.2 | <0.001 |
| Waist circumference (cm) | 103 ± 19 | 102 ± 16 | 103 ± 16 | 103 ± 16 | 106 ± 16 | <0.001 |
| Fasting glucose (mg/dl) | 106 ± 11 | 106 ± 9 | 106 ± 9 | 106 ± 9 | 107 ± 9 | 0.12 |
| 120-min glucose (mg/dl) | 165 ± 24 | 165 ± 20 | 164 ± 20 | 164 ± 20 | 166 ± 20 | 0.10 |
| A1C (%) | 5.98 ± 0.65 | 5.94 ± 0.55 | 5.99 ± 0.54 | 6.00 ± 0.54 | 6.00 ± 0.54 | 0.04 |
| Fasting insulin (μU/ml) | 23.7 ± 2.1 | 22.1 ± 1.8 | 23.6 ± 1.8 | 23.8 ± 1.8 | 25.6 ± 1.8 | <0.001 |
| Systolic blood pressure (mmHg) | 124 ± 19 | 120 ± 16 | 122 ± 16 | 124 ± 16 | 128 ± 16 | <0.001 |
| Diastolic blood pressure (mmHg) | 79 ± 13 | 77 ± 11 | 78 ± 10 | 79 ± 10 | 81 ± 10 | <0.001 |
Data are n (%) for categories and means ± SD for continuous variables except for fasting insulin represented as geometric mean. All variables except female sex and age are adjusted for baseline age, sex, and race/ethnicity.