Table 1.
Demographic characteristics of study populations
| Weight | BMI | ||||||
| Age stratum (y) | Men | Women | Total | Men* | Women* | Men* | Women* |
| Study group | |||||||
| 40–49 | 618 (34.8) | 1156 (65.2) | 1774 (27.3) | 71.7 ± 10.3 | 59.3 ± 9.3† | 24.9 ± 3.3 | 24.1 ± 2.6† |
| 50–59 | 666 (40.2) | 991 (59.8) | 1657 (25.5) | 70.1 ± 10.4 | 60.5 ± 9.4† | 25.0 ± 3.2 | 25.0 ± 3.5‡ |
| 60–69 | 882 (52.7) | 793 (47.3) | 1675 (25.8) | 65.7 ± 10.2 | 58.9 ± 9.6† | 24.2 ± 3.2 | 25.3 ± 3.8† |
| 70–79 | 482 (44.9) | 592 (55.1) | 1074 (16.5) | 63.2 ± 9.9 | 57.2 ± 9.9† | 23.8 ± 3.3 | 25.3 ± 4.0† |
| ≥80 | 144 (46.0) | 169 (54.0) | 313 (4.8) | 61.3 ± 10.6 | 54.0 ± 10.4† | 23.6 ± 3.3 | 24.3 ± 4.0‡ |
| Total | 2792 (43.0) | 3701 (57.0) | 6493 (100) | 67.4 ± 10.8 | 58.9 ± 9.7† | 24.4 ± 3.3 | 24.8 ± 3.7† |
| Reference group | |||||||
| 20–29 | 96 (57.8) | 70 (42.3) | 166 (100) | 62.4 ± 12.0 | 49.7 ± 4.8† | 21.8 ± 2.7 | 19.3 ± 1.4† |
Data are the number (percentage) or mean ± SD.
*p ≤ 0.01 on the analysis of variance for the study sub-group.
†p ≤ 0.01 on the t test between both gender.
‡Not significant.