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Table 2 Meta-analyzed odds ratios for short birth intervals with neonatal and under-5 mortality as outcomes, stratified by mother's completed fertility

From: Exploring the association between short/long preceding birth intervals and child mortality: using reference birth interval children of the same mother as comparison

Region (number of countries) Interval < 18 months Interval < 24 months
  Low Fertility OR (95% CI) High fertility OR (95% CI) Low Fertility OR (95% CI) High fertility OR (95% CI)
Outcome: Neonatal Mortality
Africa (n=28) 0.85 (0.53, 1.34) 1.80 (1.66, 1.94) 0.87 (0.65, 1.17) 1.59 (1.49, 1.69)
Asia (n=8) 1.20 (0.91, 1.57) 1.89 (1.61, 2.22) 1.23 (0.94, 1.63) 1.71 (1.59, 1.85)
Americas n = 5) 1.56 (0.84, 2.89) 2.24 (1.86, 2.70) 1.15 (0.77, 1.71) 1.97 (1.69, 2.28)
Other (n = 6) 0.86 (0.31, 2.35) 2.59 (1.71, 3.94) 0.71 (0.35, 1.43) 2.01 (1.28, 3.18)
All (n=47) 1.07 (0.84, 1.37) 1.91 (1.77, 2.05) 1.06 (0.90, 1.25) 1.67 (1.58, 1.77)
Outcome: Under-5 Mortality
Africa (n=28) 0.86 (0.64, 1.14) 1.59 (1.47, 1.71) 1.06 (0.89, 1.27) 1.42 (1.33, 1.52)
Asia (n=8) 1.28 (1.07, 1.55) 1.77 (1.50, 2.09) 1.05 (0.82, 1.35) 1.61 (1.46, 1.76)
Americas n = 5) 1.72 (1.18, 2.52) 1.92 (1.72, 2.14) 1.48 (1.08, 2.01) 1.73 (1.59, 1.89)
Other (n = 6) 1.74 (0.99, 3.05) 2.12 (1.46, 3.08) 1.39 (0.89, 2.16) 1.74 (1.27, 2.37)
All (n=47) 1.20 (0.99, 1.44) 1.71 (1.59, 1.84) 1.17 (1.03, 1.32) 1.51 (1.43, 1.61)
  1. Reference birth interval: 24-<60 months
  2. Completed fertility: woman’s total fertility at the end of her reproductive period