Table 3.
Regression Model Predicting BMI 12 ± 3 Months After Baseline
| Variable | Regression Coefficient | Standard Error | P Value | ΔR2 |
|---|---|---|---|---|
| Intercept | 21.79 | 0.10 | <.0001 | |
| Age in year* | 0.05 | 0.01 | <.0001 | 0.2647 |
| Age2 | −0.01 | 0.00 | <.0001 | 0.0027 |
| Sex (ref = female) | −0.07 | 0.11 | <.0001 | 0.0041 |
| Race-ethnicity (ref = White) | <.0001 | 0.0019 | ||
| Black | 0.13 | 0.08 | ||
| Hispanic | 0.15 | 0.07 | ||
| Other | 0.12 | 0.11 | ||
| Unknown | 0.38 | 0.11 | ||
| Sex × race-ethnicity | <.0001 | 0.0015 | ||
| Male × Black | −0.19 | 0.11 | ||
| Male × Hispanic | 0.01 | 0.10 | ||
| Male × other | −0.08 | 0.16 | ||
| Male × unknown | −0.33 | 0.15 | ||
| Rurality (ref = urban) | ||||
| Metro | 0.06 | 0.05 | <.0001 | 0.0002 |
| Rural | −0.01 | 0.09 | <.0001 | 0.0016 |
| Social vulnerability index (ref = 1st quartile) | <.0001 | 0.0018 | ||
| 2nd quartile | 0.09 | 0.08 | ||
| 3rd quartile | 0.11 | 0.07 | ||
| 4th quartile (most vulnerable) | 0.18 | 0.07 | ||
| Undetermined | 0.18 | 0.09 | ||
| Baseline BMI | 0.96 | 0.01 | <.0001 | 0.5842 |
| Baseline BMI × Male | −0.02 | 0.01 | .0017 | 0.0001 |
| Baseline BMI × Race-ethnicity | .0245 | 0.0001 | ||
| Baseline BMI × Black | 0.01 | 0.01 | ||
| Baseline BMI × Hispanic | −0.01 | 0.01 | ||
| Baseline BMI × other | −0.01 | 0.01 | ||
| Baseline BMI × unknown | 0.02 | 0.01 | ||
| Group (ref = healthy)† | <.0001 | 0.0021 | ||
| BH/SGAP+ | 1.05 | 0.11 | ||
| BH/SGAP− | 0.02 | 0.06 | ||
| Asthma | −0.10 | 0.09 | ||
| Sex × group | .0013 | 0.0001 | ||
| Male × BH+/SGAP+ | −0.13 | 0.16 | ||
| Male × BH/SGAP− | −0.12 | 0.10 | ||
| Male × asthma | 0.33 | 0.14 | ||
| Baseline BMI × group | .0001 | 0.0002 | ||
| Baseline BMI × BH/SGAP+ | 0.06 | 0.01 | ||
| Baseline BMI × BH/SGAP− | 0.01 | 0.01 | ||
| Baseline BMI × asthma | 0.00 | 0.01 |
BH indicates behavioral health; SGAP, second-generation antipsychotics; and BMI, body mass index.
Age was centered by subtracting its mean 11.3 years.
BH/SGAP+: children having behavioral conditions and taking second-generation antipsychotics; BH/SGAP−: children having behavioral conditions without second-generation antipsychotics; Asthma: children with asthma; Healthy: healthy children.