Skip to main content

Table 1 Characteristics of participants

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 All (n = 525) Female (n = 436) Male (n = 89)
Age, years 72 (67, 77) 72 (67, 77) 74 (69, 78)
Measured height, cm 154.3 ± 7.6 152.1 ± 5.8 164.9 ± 6.1
Measured weight, kg 53.7 ± 9.2 51.9 ± 8.3 62.3 ± 8.3
Measured BMI, kg/m2 22.5 ± 3.2 22.4 ± 3.3 22.9 ± 2.7
Weight misperception, kga 0.5 (−0.2, 1.0) 0.5 (−0.1, 1.0) 0.3 (−0.6, 0.8)
Weight misperception, %a 0.9 (−0.3, 2.0) 1.0 (−0.1, 2.1) 0.5 −0.9, 1.3)
%fat, % 29.6 ± 7.9 31.2 ± 7.2 21.6 ± 5.8
ALM, kg 15.9 ± 3.2 14.9 ± 1.9 21.0 ± 3.3
SMI, kg/m2 6.6 ± 0.8 6.4 ± 0.5 7.7 ± 0.9
Low muscle mass, n (%) 49 (9.3%) 33 (7.6%) 16 (18.0%)
Exercise habit, n (%)
 Yes 396 (75.4%) 329 (75.5%) 67 (75.3%)
 No 129 (24.6%) 107 (24.5%) 22 (24.7%)
Smoking habit, n (%)
 No 507 (96.6%) 429 (98.4%) 78 (87.6%)
 Yes 18 (3.4%) 7 (1.6%) 11 (12.4%)
Drinking habit, n (%)
 No 337 (64.2%) 310 (71.1%) 27 (30.3%)
 Yes 118 (22.5%) 126 (28.9%) 62 (69.7%)
Self-reported health, n (%)
 Good 440 (83.8%) 367 (84.2%) 73 (82.0%)
 Poor 85 (16.2%) 69 (15.8%) 16 (18.0%)
Self-reported physical fitness, n (%)
 Good 269 (51.2%) 223 (51.1%) 46 (51.7%)
 Poor 256 (48.8%) 213 (48.9%) 43 (48.3%)
Socioeconomic status, n (%)
 High 385 (73.5%) 324 (74.3%) 61 (69.3%)
 Low 139 (26.5%) 112 (25.7%) 27 (30.7%)
  1. Data are the means ± SD or percentages. Age and weight misperceptions are median values (interquartile ranges)
  2. BMI Body mass index, ALM Appendicular lean mass, SMI Skeletal muscle index
  3. aCalculated by subtracting measured values from self-reported values