Table 2.
Baseline characteristics of eligible participants grouped by former smoking status.
| Characteristic | Quitters (n = 183) |
Non-smokers (n = 1,174) |
Smokers (n = 1,759) |
|---|---|---|---|
| Male (%) | 128 (69) | 188 (16) | 1049 (59) |
| Age, year (Mean (SD)) |
50 (8.5) | 49 (8.5) | 46 (8.0) |
| SBP, mmHg (Mean (SD)) |
128 (18) | 132 (22) | 126 (18) |
| BMI (Mean (SD)) |
26 (4) | 26 (4) | 25 (4) |
| Chol (Mean (SD)) |
234 (44) | 232 (45) | 228 (43) |
| Height (Mean (SD)) |
66 (3) | 63 (3) | 65 (3) |
| Education (%) | |||
| <High school | 65 (36) | 507 (43) | 675 (38) |
| High school | 64 (35) | 420 (36) | 707 (40) |
| College or higher | 51 (28) | 227 (19) | 350 (20) |
| Missing | 3 (2) | 20 (2) | 27 (2) |
| Work (%) | |||
| Supervisory | 58 (32) | 156 (13.3) | 419 (23.8) |
| Technical | 20 (10.9) | 31 (2.6) | 130 (7.4) |
| Laborer | 48 (26.2) | 238 (20.3) | 517 (29.4) |
| Clerical | 12 (6.6) | 76 (6.5) | 109 (6.2) |
| Sales | 8 (4.4) | 19 (1.6) | 91 (5.2) |
| Housewife | 36 (19.7) | 647 (55.1) | 478 (27.2) |
| Missing | 1 (0.5) | 7 (0.6) | 15 (0.9) |
| Marital (%) | |||
| Married | 163 (89.1) | 935 (80) | 1580 (90) |
| Single | 10 (6) | 145 (12) | 105 (6) |
| Divorced | 10 (6) | 94 (8) | 74 (4) |
SBP: systolic blood pressure; BMI: body mass index; Chol: cholesterol level;
No one use the anti-hypertensive drugs at the beginning.