Table 5.
Regression models estimating the association of baseline characteristics with subsequent weight gain (continuous outcome, kg) over one academic year.
| Model I, adjusted for sex *
|
Model II, fully adjusted†
|
|||||
|---|---|---|---|---|---|---|
| Baseline characteristics | β | 95% CI | p-value | β | 95% CI | p-value |
| Anthropometry | ||||||
| Weight (kg) | −0.02 | −0.06, 0.03 | 0.494 | 0.02 | −0.04, 0.08 | 0.537 |
| BMI (kg/m2) | −0.07 | −0.22, 0.08 | 0.379 | 0.03 | −0.30, 0.36 | 0.854 |
| WC (cm) | −0.07 | −0.13, −0.00 | 0.038‡ | −0.21 | −0.36, −0.06 | 0.007 |
| HC (cm) | −0.03 | −0.09, 0.04 | 0.425 | 0.03 | −0.20, 0.25 | 0.833 |
| Body composition | ||||||
| Total BF (%) | −0.12 | −0.21, −0.03 | 0.009 | −0.17 | −0.30, −0.04 | 0.013 |
| Truncal body fat (%) | −0.09 | −0.17, −0.01 | 0.024 | −0.11 | −0.22, −0.00 | 0.050 |
| FMI (kgadipose/m2) | −0.26 | −0.51, 0.00 | 0.054 | −0.35 | −0.76, 0.07 | 0.107 |
| Energy expenditure | ||||||
| Total PA (MET·hr/d)‡ | Men: 0.14 | −0.78, 1.06 | 0.769 | Men: −0.03 | −0.13, 0.08 | 0.601 |
| Women: −0.14 | −1.06, 0.78 | 0.769 | Women: 0.11 | 0.01, 0.20 | 0.026 | |
| Sedentary time (hr/d) | 0.008 | −0.15, 0.17 | 0.922 | 0.05 | −0.14, 0.24 | 0.603 |
Note.
Model I for each variable, in separate models, adjusted for sex; sex by physical activity (PA) interaction was tested, but only included if statistically significant.
Models for anthropometry and body composition variables were adjusted for sex, baseline weight, baseline diet (energy intake, total fat [% energy]), and energy expenditure (PA, sex by PA interaction, and sedentary time).
p-values <0.05 and associated parameters are in bold, and in model I the p-value for the sex by PA interaction = 0.8510; in model II, p-value for interaction = 0.0486, interaction beta coefficient = −0.135 (men 1; women 0), and thus both models shown accounting for sex interaction.