TABLE 2.
Change in child motor development score by child condition for children 6–11 and 12–18 mo of age1
| Children 6–11 mo of age |
Children 12–18 mo of age |
|||||
| Univariate linear regression | Multiple linear regression | Univariate linear regression | Multiple linear regression | |||
| Age, mo | 1.47*** (1.37, 1.57) | 1.42*** (1.31, 1.53) | 0.59 | 1.25*** (1.13, 1.38) | 1.18*** (1.04, 1.32) | 0.45 |
| Sex, male vs. female | −0.22 (−0.48, 0.05) | — | — | −0.54** (−0.84, −0.24) | −0.72*** (−1.07, −0.37) | −0.08 |
| Growth | ||||||
| Length-for-age z score | 0.52*** (0.37, 0.67) | 0.46*** (0.30, 0.61) | 0.15 | 0.87*** (0.70, 1.04) | 0.73*** (0.59, 0.88) | 0.21 |
| Weight-for-length z score | 0.27** (0.11, 0.43) | 0.27** (0.11, 0.43) | 0.08 | 0.66*** (0.44, 0.87) | 0.50** (0.29, 0.71) | 0.12 |
| Anemia category | −0.09 (−0.30, 0.11) | — | — | 0.34* (0.03, 0.64) | — | — |
| Other nutritional factors | ||||||
| Food deprivation | −0.92*** (−1.36, −0.47) | −0.81** (−1.39, −0.22) | −0.06 | −1.27*** (−1.85, −0.69) | — | — |
| Dietary diversity score | 0.48*** (0.34, 0.63) | 0.43*** (0.24, 0.61) | 0.11 | 0.52*** (0.34, 0.70) | 0.30** (0.11, 0.48) | 0.07 |
| Recent child morbidity | −0.50* (−0.89, −0.11) | — | — | −0.70** (−1.12, 0.28) | — | — |
| Household stimulation score | 0.25*** (0.18, 0.33) | 0.15** (0.07, 0.23) | 0.08 | 0.38*** (0.28, 0.49) | 0.31*** (0.20, 0.42) | 0.16 |
| Distal factors | ||||||
| Wealth index quintile | 0.21** (0.10, 0.32) | — | — | 0.45*** (0.31, 0.59) | — | — |
| Any maternal education | 0.64** (0.33, 0.95) | — | — | 1.10*** (0.79, 1.41) | — | — |
| Any paternal education | 0.52*** (1.37, 1.56) | — | — | 0.95*** (0.58, 1.32) | — | — |
| Caste | 0.09 (−0.09, 0.26) | — | — | −0.23* (−0.45, −0.02) | −0.26** (−0.44, −0.09) | −0.07 |
Values are coefficients (95% CIs). All estimates account for cluster randomization by health subcenter and are adjusted for age of child. Anemia was categorized as moderate or severe (hemoglobin <10 g/dL), mild (hemoglobin 10 to <11 g/dL), and no anemia (hemoglobin ≥11 g/dL). Recent child morbidity includes fever, cough, or diarrhea in the past 2 wk. Multiple regression model iteratively developed with variables retained if the P value for their coefficient remained <0.05. Regression coefficient standardized with a mean of 0 and an SD of 1. R2 = 0.42 for the multiple regression model in children 6–11 mo of age with motor development as the outcome. R2 = 0.33 for the multiple regression model in children 12–18 mo of age with motor development as the outcome. *P < 0.05, **P < 0.01, ***P < 0.001.