Table 4.
Descriptive and group level changes in %BMIp95 by sex, ethnicity and baseline body size
| %BMIp95 scores | Estimated regression coefficient (b) | |||||
|---|---|---|---|---|---|---|
| N | Baseline | Follow up | Change score | Model 1 | Model 2 | |
| Sex | ||||||
| Boys | 24 | 123.6 ± 19.7 | 121.2 ± 18.8 | −2.4 ± 7.4 | ||
| Girls | 31 | 119.8 ± 17.1 | 116.5 ± 14.7 | −3.3 ± 9.7 | ||
| Mean difference | 3.8 (−6.2, 13.8) | 4.7 (−4.3, 13.8) | 0.9 (− 3.9, 5.7) | −1.7 (−6.1, 2.7) | −2.0 (− 6.5, 2.4) | |
| P-value | 0.445 | 0.302 | 0.712 | 0.452 | 0.365 | |
| Ethnicity | ||||||
| Non-Hispanic | 19 | 124.6 ± 19.3 | 121.7 ± 15.9 | −2.9 ± 8.7 | ||
| Hispanic | 36 | 119.8 ± 17.7 | 116.9 ± 17.0 | −2.9 ± 8.8 | ||
| Mean difference | 4.8 (−5.5, 15.2) | 4.9 (−4.5, 14.3) | 0.0 (−5.0, 5.0) | −1.0 (−5.6, 3.6) | −0.7 (− 5.4, 4.1) | |
| P-value | 0.353 | 0.306 | 0.994 | 0.667 | 0.780 | |
| Baseline body size | ||||||
| Obese | 31 | 108.7 ± 5.4 | 108.0 ± 8.4 | −0.6 ± 5.5 | ||
| Severely obese | 24 | 138.0 ± 15.4 | 132.2 ± 14.6 | −5.8 ± 11.0 | ||
| Mean difference | 29.3 (3.3, 22.5) | 24.1 (3.3, 17.3) | 5.2 (0.2, 10.2) | 1.8 (−5.6, 9.2) | 2.1 (−5.3, 9.6) | |
| P-value | < 0.001 | < 0.001 | 0.044 | 0.629 | 0.564 | |
Values are mean ± SD or mean (95% CI)
Estimated regression coefficient for sex, ethnicity and baseline body size was adjusted for baseline %BMIp95 in Model 1 and further adjusted for the study child’s age at baseline (years) and length of ELI participation (months) in Model 2