Table 1 Characteristics of subjects by SRH level at baseline (n = 899)
Characteristics | SRH at baseline | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Pretty good | Rather good | Neither good nor poor | Poora | p for difference | |||||
No. of subjects (n, %) | 98 | (10.9) | 252 | (28.0) | 430 | (47.8) | 119 | (13.2) | |
Age (years, mean ± SD) | 52.5 ± 10.3 | 54.6 ± 10.4 | 52.7 ± 9.6 | 51.0 ± 10.5 | 0.009 | ||||
Sex (men, n, %) | 34 | (34.7) | 74 | (29.4) | 102 | (23.7) | 27 | (22.7) | 0.070 |
Alcohol consumption (n, %) | 0.100 | ||||||||
Never | 30 | (30.6) | 94 | (37.3) | 175 | (40.7) | 60 | (50.4) | |
Former | 2 | (2.0) | 3 | (1.2) | 8 | (1.9) | 1 | (0.8) | |
Current | 66 | (67.4) | 155 | (61.5) | 247 | (57.4) | 58 | (48.7) | |
Smoking status (n, %) | 0.063 | ||||||||
Never | 63 | (64.3) | 166 | (65.9) | 304 | (70.7) | 75 | (63.0) | |
Former | 24 | (24.5) | 54 | (21.4) | 85 | (19.8) | 20 | (16.8) | |
Current | 11 | (11.2) | 32 | (12.7) | 41 | (9.5) | 24 | (20.2) | |
Education level (years, n, %) | 0.172 | ||||||||
≤ 9 | 3 | (3.1) | 14 | (5.6) | 20 | (4.7) | 3 | (2.5) | |
10–15 | 56 | (57.1) | 148 | (58.7) | 286 | (66.5) | 85 | (71.4) | |
≥ 16 | 39 | (39.8) | 88 | (34.9) | 121 | (28.1) | 31 | (26.1) | |
Unknown | 0 | (0.0) | 2 | (0.8) | 3 | (0.7) | 0 | (0.0) | |
Body mass index (kg/m2, mean ± SD) | 21.2 ± 2.6 | 21.3 ± 2.8 | 21.4 ± 2.9 | 21.7 ± 3.4 | 0.575 | ||||
Physical activity (METs · hours/day, mean ± SD) | 16.2 ± 8.6 | 15.5 ± 9.8 | 14.5 ± 9.4 | 14.3 ± 10.0 | 0.258 | ||||
Psychological stress (n, %) | < 0.001 | ||||||||
Not at all | 9 | (9.2) | 4 | (1.6) | 5 | (1.2) | 0 | (0.0) | |
Not much | 22 | (22.5) | 50 | (19.8) | 45 | (10.5) | 7 | (5.9) | |
A little | 43 | (43.9) | 132 | (52.4) | 222 | (51.6) | 36 | (30.3) | |
High | 24 | (24.5) | 63 | (25.0) | 156 | (36.3) | 75 | (63.0) | |
Unknown | 0 | (0.0) | 3 | (1.2) | 2 | (0.5) | 1 | (0.8) | |
Sleeping hours (hours, mean ± SD) | 6.8 ± 0.9 | 6.7 ± 0.9 | 6.6 ± 0.9 | 6.6 ± 0.9 | 0.113 | ||||
Medical history (current or former, n, %) | |||||||||
Diabetes mellitus | 1 | (1.0) | 9 | (3.6) | 13 | (3.0) | 5 | (4.2) | 0.557 |
Dyslipidemia | 15 | (15.3) | 41 | (16.3) | 85 | (19.8) | 22 | (18.5) | 0.593 |
Hypertension | 9 | (9.2) | 26 | (10.3) | 60 | (14.0) | 17 | (14.3) | 0.352 |
Cardiovascular disease | 3 | (3.1) | 4 | (1.6) | 10 | (2.3) | 7 | (5.9) | 0.106 |
Stroke | 1 | (1.0) | 2 | (0.8) | 6 | (1.4) | 1 | (0.8) | 0.889 |
Cancer | 7 | (7.1) | 13 | (5.2) | 17 | (4.0) | 5 | (4.2) | 0.565 |
Energy intake (kcal/day, mean ± SD) | 1627 ± 282 | 1632 ± 325 | 1590 ± 290 | 1595 ± 372 | 0.328 | ||||