Table 2.
Characteristics at Baseline and Incident Hypertension At Follow‐Up By BMI Trajectory Groups
| Variable | Low‐Stable (n=1497) | Medium‐Increasing (n=1421) | High‐Increasing (n=291) | Sharp‐Increasing (n=62) | P Trend |
|---|---|---|---|---|---|
| Baseline | |||||
| Age, y | 29.1 (4.8) | 28.8 (4.5) | 27.3 (4.5) | 25.0 (2.4) | <0.001 |
| Males, n (%) | 276 (18.4) | 1177 (82.8) | 253 (86.9) | 6 (9.7) | <0.001 |
| BMI, kg/m2 | 20.5 (2.1) | 23.4 (2.3) | 27.3 (3.3) | 20.3 (2.4) | <0.001 |
| SBP, mm Hg | 110.2 (10.2) | 117.7 (10.3) | 120.5 (10.6) | 110.6 (10.5) | <0.001 |
| DBP, mm Hg | 70.1 (8.0) | 73.5 (7.6) | 74.1 (7.9) | 71.5 (7.5) | <0.001 |
| Smoker, n (%) | 81 (5.4) | 306 (21.5) | 67 (23.0) | 1 (1.6) | <0.001 |
| Drinker, n (%) | 99 (6.6) | 447 (31.5) | 92 (31.6) | 3 (4.8) | <0.001 |
| Follow‐up, y | 5.5 (2.2) | 5.6 (2.1) | 5.2 (2.1) | 4.6 (1.6) | <0.001 |
| Follow‐up | |||||
| Incident hypertension, n (%) | 86 (5.7) | 206 (14.5) | 65 (22.3) | 28 (45.2) | <0.001 |
| Hypertension incidence density per 1000 person‐years (95% CI) | 10.5 (8.4, 12.9) | 25.8 (22.4, 29.6) | 42.6 (32.9, 54.3) | 97.3 (64.6, 140.6) | <0.001 |
Study variables are presented as mean (SD) or n (%). BMI indicates body mass index; DBP, diastolic blood pressure; SBP, systolic blood pressure.