Table 1.
Baseline characteristics of participants with eGFR≥60 ml/min per 1.73m2
| Participant Characteristics | Q1 | Q2 | Q3 | Q4 | P value |
|---|---|---|---|---|---|
| n | 2265 | 2264 | 2265 | 2264 | |
| Age, mean (SD) | 56.5 (5.8) | 56.5 (5.7) | 56.5 (5.6) | 56.8 (5.6) | 0.06 |
| Sex, female, % (n) | 56.7 (1284) | 57.4 (1299) | 57.3 (1298) | 55.7 (1260) | 0.62 |
| Race, black, % (n) | 19.6 (443) | 20.4 (461) | 22.3 (504) | 20.3 (459) | 0.14 |
| eGFR, ml/min per 1.73 m2, mean (SD) | 97.2 (14.3) | 97.5 (14.0) | 97.7 (13.6) | 97.4 (13.4) | 0.55 |
| Prevalent diabetes, % (n) | 17.6 (398) | 14.3 (324) | 12.5 (283) | 11.6 (263) | <0.001 |
| Prevalent hypertension, % (n) | 35.3 (799) | 33.3 (755) | 33.3 (755) | 32.9 (745) | 0.33 |
| Smoking status, % (n) | <0.001 | ||||
| Current smoker | 30.7 (696) | 25.4 (574) | 20.9 (473) | 18.2 (412) | |
| Former smoker | 34.3 (777) | 36.8 (834) | 39 (883) | 39.4 (892) | |
| Never smoked | 35 (792) | 37.8 (856) | 40.1 (909) | 42.4 (960) | |
| Prevalent coronary heart disease, % (n) | 6.5 (147) | 4.9 (112) | 4.7 (106) | 3.2 (72) | <0.001 |
| BMI, kg/m2, mean (SD) | 27.7 (5.4) | 28.1 (5.5) | 27.9 (5.3) | 27.9 (5.3) | 0.39 |
| WBC count, 103/μl, median (1st, 3rd quartile) | 6.4 (5.3, 7.7) | 6.0 (5, 7.2) | 5.6 (4.8, 6.7) | 5.3 (4.5, 6.4) | <0.001 |
| HbA1c, median (1st, 3rd quartile)a | 5.4 (5.2, 5.9) | 5.4 (5.2, 5.8) | 5.4 (5.2, 5.8) | 5.4 (5.2, 5.8) | 0.93 |
| Serum albumin, mean (SD)a | 4.18 (0.29) | 4.18 (0.29) | 4.19 (0.28) | 4.18 (0.28) | 0.40 |
| hsCRP, median (1st, 3rd quartile)a | 2.4 (1.1, 5.3) | 2.4 (1.1, 4.8) | 2.1 (1.0, 4.7) | 2.0 (1.0, 4.1) | <0.001 |
n=9058.
a
Variables are available at visit two only (n=8135).