Table 1 Characteristics of study subjects by sex
| Â | Male | Female | Total (n=2226) |
|---|---|---|---|
| Â | (n=1084) | (n=1142) | Â |
NOS3 T-786C genotype | Â | Â | Â |
 TT | 869 (80.2) | 930 (81.4) | 1799 (80.8) |
 TC | 202 (18.6) | 199 (17.4) | 401 (18.0) |
 CC | 13(1.2) | 13(11) | 26(1.2) |
Age (y) | Â | Â | Â |
 35 to < 40 | 47(4.3) | 54(4.7) | 101 (4.5) |
 40 to < 50 | 222 (20.5) | 236 (20.7) | 458 (20.6) |
 50 to < 60 | 354 (32.7) | 438 (38.4) | 792 (35.6) |
 ≥ 60 | 461 (42.5) | 414 (36.3) | 875 (39.3) |
BMI (kg/m2) | Â | Â | Â |
 < 25 | 749 (69.1) | 896 (78.5) | 1645 (73.9) |
 25 to < 30 | 303 (28.0) | 212 (18.6) | 515 (23.1) |
 ≥ 30 | 32(3.0) | 34 (3.0) | 66(3.0) |
Fat energy ratio (%) | Â | Â | Â |
 < 20 | 584 (53.9) | 151 (13.2) | 735 (33.0) |
 20 to < 25 | 330 (30.4) | 364 (31.9) | 694 (31.2) |
 25 to < 30 | 123 (11.4) | 369 (32.3) | 492 (22.1) |
 ≥ 30 | 47 (43) | 258 (22.6) | 305 (13.7) |
Smoking habits (pack-years) | Â | Â | Â |
 Never | 333 (30.7) | 1046 (91.6) | 1 379 (62.0) |
 Light (< 20) | 245 (22.6) | 55 (4.8) | 300 (13.5) |
 Moderate (20 to < 40) | 283 (26.1) | 35 (3.1) | 318 (14.3) |
 Heavy (≥ 40) | 223 (20.6) | 6 (0.5) | 229 (10.3) |
Leisure-time physical activity | Â | Â | Â |
(MET-minutes/week) | |||
 Sedentary (< 600) | 644 (59.4) | 705 (61.7) | 1 349 (60.6) |
 Moderately active (600 to < 1500) | 295 (27.2) | 305 (26.7) | 600 (27.0) |
 Very active (≥ 1500) | 145 (1 3.4) | 132 (11.6) | 277 (12.4) |