Table 2 Estimates (standard errors) of height and growth curve models fitted to boys and girls
Boys | Girls | |||
|---|---|---|---|---|
Fixed effects | Model 1a | Model 2b | Model 1a | Model 2b |
Intercept | 115.70 (0.35) | 116.68 (0.96) | 115.76 (0.41) | 117.14 (1.05) |
Age (mean centred at age 7) | 6.58 (0.06) | 6.41 (0.07) | 6.67 (0.06) | 6.55 (0.07) |
Age2 | −0.14 (0.01) | −0.16 (0.01) | −0.19 (0.01) | −0.20 (0.01) |
Left-behind stage (reference group never left behind child aged 7) | ||||
Never left behind | 0 | 0 | 0 | 0 |
In early childhood only | 2.62 (0.91) | 1.99 (0.80) | −0.82 (1.09) | −0.21 (0.93) |
In early and later childhood | −1.51 (1.25) | −0.25 (1.05) | −1.94 (1.42) | 0.06 (1.17) |
In later childhood only | −1.64 (0.79) | −0.40 (0.66) | −2.03 (0.92) | −0.40 (0.76) |
Deviance statistics | 16.63 | 7.15 | 6.10 | 0.31 |
P-value for Chi-square (df = 3) | <0.01 | 0.07 | 0.11 | 0.96 |
Interactions (reference group never left behind child aged 7): | ||||
Age × Left-behind stage: | ||||
In early childhood only | 0.17 (0.23) | 0.01 (0.22) | −0.42 (0.21) | −0.46 (0.20) |
In early and later childhood | −0.23 (0.23) | −0.38 (0.23) | 0.02 (0.22) | −0.19 (0.23) |
In later childhood only | −0.35 (0.14) | −0.36 (0.14) | 0.03 (0.15) | −0.08 (0.16) |
Age2 × Left-behind stage: | ||||
In early childhood only | −0.09 (0.04) | −0.10 (0.04) | 0.01 (0.04) | 0.00 (0.04) |
In early and later childhood | 0.07 (0.05) | 0.08 (0.05) | 0.05 (0.05) | 0.05 (0.05) |
In later childhood only | 0.03 (0.03) | 0.03 (0.03) | −0.00 (0.03) | −0.00 (0.03) |
Deviance statistics | 18.31 | 18.94 | 5.86 | 6.79 |
P-value for Chi-square (df = 6) | 0.01 | <0.01 | 0.44 | 0.34 |
−2 Log likelihood | 9357.00 | 9138.48 | 6872.58 | 6681.72 |