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Table 2 Physical characteristics by the results of weight misperception

From: Weight over-reporting is associated with low muscle mass among community-dwelling Japanese adults aged 40 years and older: a cross sectional study

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%)
  1. 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 (%)
  2. BMI Body mass index, ALM Appendicular lean mass, SMI Skeletal muscle index