Table 4.
Logistic regression models estimating the relation of baseline characteristics to risk of weight gain over the first year of college (dichotomous outcome defined as gaining >0.5 kg vs. no gain).
| Baseline characteristics | Model I, unadjusted*
|
Model II, sex adjusted†
|
Model III, fully adjusted§
|
|||
|---|---|---|---|---|---|---|
| Anthropometry | Odds ratio | 95% CI | Odds ratio | 95% CI | Odds ratio | 95% CI |
| BMI (kg/m2) | 0.89‡ | 0.80, 0.99 | 0.89 | 0.80, 0.99 | 0.96 | 0.75, 1.22 |
| WC (cm) | 0.95 | 0.91, 0.99 | 0.95 | 0.90, 0.99 | 0.88 | 0.78, 1.00 |
| HC (cm) | 0.97 | 0.92, 1.01 | 0.97 | 0.92, 1.01 | 1.01 | 0.87, 1.18 |
| Body composition | ||||||
| Total BF (%) | 0.95 | 0.91, 1.0 | 0.91 | 0.84, 0.97 | 0.89 | 0.80, 1.00 |
| Truncal body fat (%) | 0.95 | 0.91, 1.0 | 0.93 | 0.88, 0.98 | 0.94 | 0.86, 1.02 |
| FMI (kgadipose/m2) | 0.83 | 0.71, 0.98 | 0.78 | 0.65, 0.95 | 0.79 | 0.57, 1.09 |
| Energy expenditure | ||||||
| Total PA (MET·hr/d) | 1.04 | 0.99, 1.08 | Men: 0.99‡ | 0.93, 1.05 | Men: 0.96‡ | 0.88, 1.04 |
| Women: 1.10‡ | 1.01, 1.19 | Women: 1.10‡ | 1.00, 1.21 | |||
| Sedentary time (hr/d) | 1.07 | 0.95, 1.21 | 1.07 | 0.95, 1.21 | 1.12 | 0.95, 1.32 |
Note.
No variables other than the single variable listed were included in unadjusted model.
Model was adjusted for sex, and sex by ‘variable’ interaction was tested and included if statistically significant.
The p-value for estimates shown in bold was <0.05; the sex by PA interaction p = 0.0409, thus model estimates shown are sex-specific.
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).