Table 1.
Characteristics of participants in all and by renal function status
| All | eGFR ≥ 60 mL/min/1.73 m2 | eGFR < 60 mL/min/1.73 m2 | P-value | |
|---|---|---|---|---|
| Nanjing survey | ||||
| Participants, n | 5824 | 4313 | 1511 | |
| Age, years | 52.0 (43.0 to 59.0) | 51.0 (43.0 to 58.0) | 55.0 (48.0 to 62.0) | 0.0001 |
| Women, % | 56.3% | 47.8% | 67.5% | <0.0001 |
| Current smoking, % | 28.0% | 18.3% | 66.4% | <0.0001 |
| Asthma/COPD, % | 1.1% | 1.1% | 1.1% | 0.9720 |
| Body mass index, kg/m2 | 23.6 (21.4 to 26.1) | 23.6 (21.4 to 26.1) | 23.6 (21.4 to 26.1) | 0.5862 |
| Waist circumference, cM | 80.0 (73.3 to 87.0) | 79.3 (73.0 to 86.2) | 82.5 (75.0 to 89.5) | 0.0001 |
| Systolic blood pressure, mmHg | 128.0 (116.3 to 142.5) | 126.5 (115.0 to 141.0) | 131.0 (120.0 to 145.5) | 0.0001 |
| Diastolic blood pressure, mmHg | 80.5 (73.5 to 88.5) | 80.0 (72.5 to 88.0) | 82.0 (75.0 to 90.5) | 0.0001 |
| Fasting glucose, mmol/L | 5.4 (4.9 to 5.9) | 5.4 (4.9 to 5.9) | 5.7 (5.0 to 7.1) | 0.0698 |
| Triglyceride, mmol/L | 1.2 (0.8 to 1.7) | 1.2 (0.8 to 1.7) | 1.2 (0.8 to 1.9) | 0.0001 |
| Total cholesterol, mmol/L | 4.4 (3.9 to 4.9) | 4.4 (3.9 to 5.0) | 4.4 (3.9 to 4.9) | 0.0783 |
| High density lipoprotein cholesterol, mmol/L | 1.3 (1.1 to 1.5) | 1.3 (1.1 to 1.6) | 1.2 (1.1 to1.5) | 0.0001 |
| Low density lipoprotein cholesterol, mmol/L | 2.4 (2.0 to 2.9) | 2.4 (2.0 to 2.8) | 2.4 (2.1 to 2.9) | 0.3603 |
| Forced expiratory volume in 1 s, L | 2.9 (2.6 to 3.4) | 3.3 (2.9 to 3.7) | 2.8 (2.5 to 3.2) | 0.0001 |
| Forced vital capacity, L | 2.8 (2.4 to 3.4) | 3.3 (2.8 to 3.8) | 2.7 (2.3 to 3.2) | 0.0001 |
| Creatinine, mg/dl | 1.0 (0.9 to 1.1) | 0.9 (0.8 to 1.0) | 1.2 (1.1 to 1.3) | 0.0001 |
| Crossroads | ||||
| Participants, n | 1454 | 1298 | 156 | |
| Age, years | 52.0 (40.0 to 65.0) | 50.0 (39.0 to 61.0) | 76.0 (70.8 to 79.3) | 0.0001 |
| Women, % | 56.0% | 53.7% | 56.3% | 0.5660 |
| Current smoking, % | 18.9% | 6.7% | 20.2% | <0.0001 |
| Asthma/COPD, % | 14.3% | 13.4% | 14.6% | 0.7240 |
| Body mass index, kg/m2 | 27.0 (24.3 to 30.7) | 27.0 (24.3 to 30.6) | 27.4 (24.5 to 31.6) | 0.3803 |
| Waist circumference, cM | 94.5 (84.5 to 104.3) | 94.2 (84.3 to 103.9) | 97.6 (86.1 to 109.3) | 0.0075 |
| Systolic blood pressure, mmHg | 130.0 (114.0 to145.0) | 128.5 (113.0 to 142.5) | 147.0 (130.9 to 162.6) | 0.0001 |
| Diastolic blood pressure, mmHg | 72.0 (65.0 to 79.0) | 71.0 (63.0 to 76.0) | 72.3 (65.5 to 80.5) | 0.4244 |
| Fasting glucose, mmol/L | 5.1 (4.8 to 5.5) | 5.0 (4.7 to 5.4) | 5.3 (4.9 to 5.9) | 0.0001 |
| Triglyceride, mmol/L | 1.2 (0.9 to 1.7) | 1.2 (0.8 to 1.7) | 1.4 (1.1 to 1.9) | 0.0001 |
| Total cholesterol, mmol/L | 5.2 (4.6 to 5.9) | 5.1 (4.4 to 5.9) | 5.2 (4.6 to 5.9) | 0.3340 |
| High density lipoprotein cholesterol, mmol/L | 1.4 (1.1 to 1.6) | 1.4 (1.2 to 1.6) | 1.3 (1.1 to 1.7) | 0.9405 |
| Low density lipoprotein cholesterol, mmol/L | 3.1 (2.6 to 3.7) | 3.0 (2.3 to 3.7) | 3.2 (2.6 to 3.7) | 0.1003 |
| Forced expiratory volume in 1 s, L | 2.8 (2.3 to 3.4) | 2.9 (2.4 to 3.5) | 1.9 (1.5 to 2.8) | 0.0001 |
| Forced vital capacity, L | 3.5 (2.9 to 4.3) | 3.6 (3.0 to 4.4) | 2.5 (2.1 to 3.3) | 0.0001 |
| Creatinine, mg/dl | 0.9 (0.8 to 1.0) | 0.8 (0.7 to 0.9) | 1.2 (1.1 to 1.5) | 0.0001 |