Table 3 Clinical characteristics of the longitudinal cohort classified by BMI (n = 24,507).
Characteristics | Total | Underweight (BMI < 18.5) | Normal weight (18.5 ≤ BMI < 24) | Overweight (24 ≤ BMI < 27) | Obese (BMI ≥ 27) | p value |
|---|---|---|---|---|---|---|
Number (%) | 24,507 | 662 (3) | 12,321(50) | 6941 (28) | 4583(19) | – |
Demographic data | ||||||
Age, yr | 51 ± 10 | 46 ± 11 | 50 ± 10 | 52 ± 10 | 51 ± 10 | < 0.001 |
Women | 15,977(65) | 576 (87) | 9125 (74) | 3782 (55) | 2494 (54) | < 0.001 |
Smoking, ever | 5869 (24) | 85 (13) | 2224 (18) | 2096 (30) | 1464 (32) | < 0.001 |
Alcohol status, ever | 2035 (8) | 23 (4) | 727 (6) | 742 (11) | 543 (12) | < 0.001 |
Comorbidities | ||||||
Hypertension | 3115 (13) | 12 (2) | 866 (7) | 1135 (16) | 1102 (24) | < 0.001 |
Diabetes | 1277 (5) | 12 (2) | 409 (3) | 407 (6) | 449 (10) | < 0.001 |
Dyslipidemia | 1805 (7) | 18 (3) | 644 (5) | 595 (9) | 548 (12) | < 0.001 |
Laboratory data | ||||||
Hemoglobin, g/dl | 13.7 ± 1.6 | 13.1 ± 1.4 | 13.4 ± 1.5 | 14.0 ± 1.5 | 14.1 ± 1.6 | < 0.001 |
Albumin, g/dl | 4.6 ± 0.2 | 4.6 ± 0.2 | 4.5 ± 0.2 | 4.6 ± 0.2 | 4.6 ± 0.2 | < 0.001 |
Fasting glucose, mg/dl | 96 ± 20 | 88 ± 7 | 93 ± 16 | 98 ± 21 | 102 ± 27 | < 0.001 |
Total cholesterol, mg/dl | 195 ± 35 | 184 ± 33 | 193 ± 35 | 198 ± 36 | 197 ± 36 | < 0.001 |
Triglyceride, mg/dl | 114 ± 84 | 68 ± 30 | 95 ± 63 | 127 ± 92 | 151 ± 104 | < 0.001 |
Uric acid, mg/dL | 5.5 ± 1.4 | 4.4 ± 1.0 | 5.0 ± 1.2 | 5.8 ± 1.4 | 6.3 ± 1.5 | < 0.001 |
eGFR, ml/min per 1.73 m2 | 103 ± 24 | 112 ± 24 | 105 ± 23 | 100 ± 23 | 100 ± 25 | < 0.001 |
Follow-up, months | 47 ± 14 | 47 ± 13 | 47 ± 14 | 46 ± 14 | 47 ± 14 | 0.124 |
