Table 2

Low birth weight type as a predictor for poor growth outcomes at 6 months

Prevalence of poor growth outcomes by LBW typeUnadjustedAdjusted*
n (%)NRR (95% CI), p valueNRR (95% CI), p value
Preterm SGAPreterm AGAPreterm LGATerm SGAPreterm SGAPreterm LGATerm SGAPreterm SGAPreterm LGATerm SGA
Stunted at 6 months48 (38.1)52 (19.9)4 (12.9)175 (40.1)8562.05 (1.49 to 2.83), <0.0010.58 (0.22–1.50), 0.262.39 (1.82 to 3.15), <0.0018311.89 (1.37 to 2.62), <0.0010.61 (0.23 to 1.60), 0.322.33 (1.77 to 3.08), <0.001
Underweight at 6 months37 (29.4)29 (11.1)0 (0.0)156 (35.5)8582.64 (1.70 to 4.08), <0.001Non-estimable3.18 (2.16 to 4.68), <0.0018332.32 (1.48 to 3.62), <0.001Non-estimable2.89 (1.97 to 4.24), <0.001
Wasted at 6 months12 (9.5)14 (5.3)0 (0.0)62 (14.2)8571.56 (0.74 to 3.31), 0.24Non-estimable2.04 (1.14 to 3.65), 0.028321.26 (0.57 to 2.79), 0.57Non-estimable1.99 (1.13 to 3.51), 0.02
Mean (SD)NBeta (95% CI)NBeta (95% CI)
Preterm SGAPreterm AGAPreterm LGATerm SGAPreterm SGAPreterm LGATerm SGAPreterm SGAPreterm LGATerm SGA
LAZ at 6 months−1.66 (1.1)−0.90 (1.3)−0.47 (1.4)−1.76 (1.1)856−0.84 (−1.09 to −0.60), <0.0010.58 (0.06 to 1.10), 0.03−1.06 (−1.25 to 0.87), <0.001831−0.79 (−1.03 to −0.54), <0.0010.49 (−0.04 to 1.02), 0.07−1.05 (−1.24 to 0.86), <0.001
WAZ at 6 months−1.46 (1.1)−0.63 (1.1)−0.11 (0.7)−1.61 (1.1)858−0.81 (−1.05 to −0.58), <0.0010.49 (0.19 to 0.78), 0.001−0.94 (−1.13 to −0.76), <0.001833−0.72 (−0.96 to −0.48), <0.0010.42 (0.12 to 0.73), 0.01−0.90 (−1.08 to −0.72), <0.001
WLZ at 6 months−0.42 (1.2)0.06 (1.3)0.42 (1.1)−0.57 (1.3)857−0.36 (−0.61 to −0.11), 0.010.17 (−0.26 to 0.59), 0.44−0.37 (−0−58 to −0.17), <0.001832−0.28 (−0.55 to −0.01), 0.040.16 (−0.26 to 0.58), 0.44−0.32 (−0.53 to −0.10), 0.004
  • Reference group: preterm-AGA infants.

  • *Adjusted by maternal education, maternal age, parity, place of residence, wealth quintile, birthcount, sex and site; and with cluster-robust SEs for clustering by mother.

  • AGA, appropriate-for-gestational age; LAZ, weight-for-age; LGA, large-for-gestational age; RR, relative risk; SGA, small-for-gestational age; WAZ, weight-for-age; WLZ, weight-for-length.