From: Adolescent pregnancy and linear growth of infants: a birth cohort study in rural Ethiopia
Fixed effects (n = 1378) | Coefficient (β) | SE | P |
---|---|---|---|
Intercept | 1.38 | 0.143 | < 0.001* |
Infant age (Time) | 0.14 | 0.029 | < 0.001* |
Quadratic time effect (Time*Time) | −0.01 | 0.002 | < 0.001* |
Maternal age (15–19 years) | − 0.24 | 0.128 | 0.032 |
Maternal age*Time | 0.05 | 0.034 | 0.179 |
LAZ at birth | 0.38 | 0.029 | < 0.001* |
Maternal education (ref = no formal education) | |||
 Primary | 0.05 | 0.077 | 0.518 |
 Primary*Time | 0.02 | 0.007 | 0.051 |
  ≥ Secondary | 0.10 | 0.135 | 0.417 |
  ≥ Secondary*Time | 0.03 | 0.013 | 0.024 |
Wealth index (ref = low) | |||
 Middle | 0.21 | 0.084 | 0.004* |
 Middle*Time | −0.05 | 0.008 | 0.485 |
 High | 0.13 | 0.084 | 0.018 |
 High*Time | 0.01 | 0.008 | 0.245 |
 Iron-folate supplement (≥90 days) | −0.07 | 0.074 | 0.305 |
 Iron-folate*Time | 0.15 | 0.007 | 0.018 |
 Illness in 2 weeks (Yes) | 0.05 | 0.070 | 0.495 |
 Illness in 2 weeks *Time | −0.15 | 0.006 | 0.001* |
Random effects | |||
 Variance of random intercept | 0.004 | 0.006 |  |
 Variance of random slope | 0.913 | 0.063 |  |
 Covariance of random intercept and slope | −0.033 | 0.005 |  |
 Variance of residuals | 0.402 | 0.011 |  |