Table 1.
Basic characteristics according to 5 subgroups with different SBP trajectory patterns in 79,385 participants of the Kailuan study
| Items | Normotensive-stable | Prehypertension-stable | Stage 1 hypertension-increasing | Stage 1 hypertension-decreasing | Stage 2 hypertension-stable |
|---|---|---|---|---|---|
| N (%) | 26740(33.7) | 35674(44.9) | 8215(10.4) | 6422(8.1) | 2334(2.9) |
| Age, year | 44.4 | 50.7 | 56.9 | 55.7 | 58.8 |
| Women, % | 33.2 | 16.3 | 15.9 | 16.3 | 13.5 |
| Current smoking, % | 32.2 | 36.1 | 32.6 | 30.8 | 35.3 |
| Current alcohol intaking, % | 38.2 | 43.1 | 42.3 | 37.8 | 41.9 |
| Physical activity 3+ times/week, % | 10.6 | 14.4 | 19.2 | 19.1 | 22.9 |
| Salt intake, ≥10 gram/day, % | 9.8 | 10.5 | 11.0 | 10.8 | 12.6 |
| Illiteracy or elementary school, % | 4.8 | 8.6 | 14.2 | 12.3 | 18.7 |
| Average income, <500¥/month, % | 26.8 | 28.9 | 29.2 | 28.2 | 34.4 |
| Use of antihypertensive agent, % | 1.1 | 7.5 | 21.5 | 25.1 | 37.2 |
| Use of lipid-lowering agents, % | 0.33 | 0.76 | 1.34 | 0.97 | 1.24 |
| Use of hypoglycemic agents, % | 1.00 | 1.95 | 3.48 | 3.35 | 3.43 |
| BMI*, Kg/m2 | 23.8 | 25.4 | 26.1 | 26.1 | 26.3 |
| Hs-CRP*, †, mg/L | 1.13 | 1.14 | 1.43 | 1.36 | 1.58 |
| TG*, mmol/L | 1.44 | 1.75 | 1.83 | 1.85 | 1.81 |
| TC*, mmol/L | 4.81 | 5.03 | 5.17 | 5.10 | 5.19 |
| HDL-C*, mmol/L | 1.54 | 1.53 | 1.54 | 1.54 | 1.55 |
| LDL-C*, mmol/L | 2.42 | 2.55 | 2.62 | 2.58 | 2.67 |
| DBP*, mmHg | 75 | 85 | 93 | 93 | 102 |
| PP*, mmHg | 37 | 47 | 60 | 59 | 75 |
| FBG*, mmol/L | 5.15 | 5.47 | 5.76 | 5.75 | 5.84 |
| eGFR*, mL/min/1.73m2 | 90.4 | 84.9 | 80.4 | 77.7 | 76.0 |
*
Average levels based on three measurement in 2006, 2008, and 2010
†
Geometric mean
Abbreviations: TC, Total cholesterol; TG, triglycerides; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; Hs-CRP, high sensitive C-reactive protein; BMI, body mass index; DBP, diastolic blood pressure; PP, pulse pressure; FBG, fasting blood glucose; eGFR, estimated glomerular filtration rate.