Table 4.
Effect modification by sex on the relationship between misreporting of height/weight and body constitution (n = 1019)
| Dependent variable | Independent variable | βa | 95%CI | |
|---|---|---|---|---|
| Misreportingb of | BMI z-scorec of individuals | 0.19* | [0.02, | 0.36] |
| height (cm) | Sex | 0.17 | [-0.07, | 0.40] |
| BMI z-score x sex | -0.34* | [-0.58, | -0.11] | |
| Misreportingb of | BMI z-scorec of individuals | -0.43* | [-0.58, | -0.29] |
| weight (kg) | Sex | -0.14 | [-0.35, | 0.08] |
| BMI z-score x sex | -0.16 | [-0.37, | 0.05] | |
BMI body mass index, CI confidence interval, SD standard deviation
*<0.05
a A multivariate linear mixed model including BMI z-score, sex, and an interaction term (BMI z-score x sex) was used. Schools were also included as a random effect
b Misreporting was defined as the difference between self-reported values and measured values. (Misreporting = self-reported values—measured values)
c BMI z-score was calculated by a formula based on the physical constitution data of Japanese children in 2000