Table 2.
Physical characteristics by the results of weight misperception
| Variables | Weight misperception | ||
|---|---|---|---|
| Under-reporters | acceptable-reporters | Over-reporters | |
| Number (female/male) | 174 (145/29) | 176 (146/30) | 175 (145/30) |
| Age, yrs | 72 (67, 77) | 72 (67, 76) | 74 (68, 78) |
| Height, cm | 154.5 ± 7.9 | 154.4 ± 7.3 | 154.0 ± 7.6 |
| Weight, kg | 56.2 ± 9.4 | 53.4 ± 8.7 | 51.4 ± 8.9 |
| BMI, kg/m2 | 23.5 ± 3.4 | 22.3 ± 2.9 | 21.6 ± 3.0 |
| %fat, % | 31.5 ± 8.3 | 28.9 ± 7.7 | 28.3 ± 7.3 |
| ALM, kg | 16.2 ± 3.0 | 16.1 ± 3.2 | 15.5 ± 3.2 |
| SMI, kg/m2 | 6.7 ± 0.7 | 6.7 ± 0.8 | 6.5 ± 0.8 |
| Low muscle mass, n (%) | 8 (4.6%) | 12 (6.8%) | 29 (16.6%) |
| Exercise habit, n (%) | |||
| Yes | 124 (71.3%) | 134 (76.1%) | 138 (78.9%) |
| No | 50 (28.7%) | 42 (23.9%) | 37 (21.2%) |
| Smoking habit, n (%) | |||
| No | 166 (95.4%) | 172 (97.7%) | 169 (96.6%) |
| Yes | 8 (4.6%) | 4 (2.3%) | 6 (3.4%) |
| Drinking habit, n (%) | |||
| No | 107 (61.5%) | 119 (67.6%) | 111 (63.4%) |
| Yes | 67 (38.5%) | 57 (32.4%) | 64 (36.6%) |
| Self-reported health, n (%) | |||
| Good | 149 (85.6%) | 143 (81.3%) | 148 (84.6%) |
| Poor | 25 (14.4%) | 33 (18.8%) | 27 (15.4%) |
| Self-reported physical fitness, n (%) | |||
| Good | 93 (53.4%) | 87 (49.4%) | 89 (50.9%) |
| Poor | 81 (46.6%) | 89 (50.6%) | 86 (49.1%) |
| Socioeconomic status, n (%) | |||
| High | 121 (69.5%) | 135 (76.7%) | 129 (73.7%) |
| Low | 52 (29.9%) | 41 (23.3%) | 46 (26.3%) |
Data are the means ± SD or percentages. Weight misperception and age are median (interquartile range). Sex-specific weight misperception tertiles in female: under-reporters, < 0.4 (%); acceptable-reporters, 0.4–1.7 (%); over-reporters, ≥ 1.7 (%). Sex-specific weight misperception tertiles in male: under-reporters, <−0.4 (%); acceptable-reporters, 0.3–1.1 (%); over-reporters, ≥ 1.1 (%)
BMI Body mass index, ALM Appendicular lean mass, SMI Skeletal muscle index