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Table 4 Summary regression results for age trends for any breastfeeding

From: Breastfeeding patterns and exposure to suboptimal breastfeeding among children in developing countries: review and analysis of nationally representative surveys

Stratum name Stratum characteristics Intercept (95% confidence interval) Slope (95% confidence interval) Standard error of the residual
AfrD Africa: high adult, high child mortality 4.28 (4.05, 4.51) -0.20 (-0.21, -0.19) 1.30
AfrE Africa: very high adult, high child mortality 4.71 (4.43, 5.00) -0.20 (-0.21, -0.18) 1.12
AmrB Americas: low child, low adult mortality 1.34 (1.16, 1.52) -0.12 (-0.13, -0.11) 0.79
AmrD Americas: high adult, high child mortality 3.57 (3.29, 3.86) -0.18 (-0.20, -0.17) 0.83
EmrB Eastern Mediterranean: low child, low adult mortality 2.85 (2.58, 3.12) -0.22 (-0.23, -0.20) 0.36
EmrD Eastern Mediterranean: high adult, high child mortality 3.40 (3.16, 3.64) -0.17 (-0.18, -0.16) 0.80
SearB South-east Asia: low child, low adult mortality 3.58 (3.36, 3.79) -0.14 (-0.15, -0.13) 0.49
SearD South-east Asia: high adult, high child mortality 4.03 (3.72, 4.34) -0.14 (-0.15, -0.12) 0.89
WprB Western Pacific: low child, low adult mortality 2.18 (1.77, 2.60) -0.14 (-0.16, -0.12) 2.77
  1. Regressions use minimum chi-square estimation with dependent variable logarithm of prevalence odds (that is, Log(p/1 - p), where p is prevalence of any breastfeeding), and independent variable oldest month of age by two-month age groups; regressions for category-A countries stratified by geographical and epidemiologic criteria as noted in the table; any breastfeeding estimated for 18 age groups 0–1 to 34–35 months of age. Data sources listed in the Annex (Additional file 1).