Table 1 Demographic characteristics of the study participants
Characteristic | Subjects included for analysis (N = 1110) (%) | Subjects excluded for analysis (N = 153) (%) | Subjects with interfering diseases (N = 103) (%) |
|---|---|---|---|
Gender-no. (%) | |||
Male | 569 (51.3) | 63 (41.2) | 76 (73.8) |
Female | 541 (48.7) | 90 (58.8) | 27 (26.2) |
Age year-no. (%) | |||
≦ 39 | 83 (7.5) | 17 (11.1) | 5 (4.9) |
40–49 | 288 (25.9) | 37 (24.2) | 11 (10.7) |
50–59 | 387 (34.9) | 51 (33.3) | 35 (34.0) |
60–69 | 267 (24.1) | 40 (26.1) | 36 (35.0) |
≧ 70 | 85 (7.7) | 8 (5.2) | 16 (15.5) |
Mean ± SD | 54.1 ± 11.2 | 53.5 ± 10.8 | 58.7 ± 10.7 |