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Table 1 Levels and trends of child marriage, childbearing and sexual debut among adolescents by sex and sub-region in Sub-Saharan Africa, based on national surveys 1990–2018 in 37 countries, sub-Saharan Africa, in 2000 and 2015 (in parenthesis 95% confidence intervals)

From: Inequalities in early marriage, childbearing and sexual debut among adolescents in sub-Saharan Africa

  Before age 18 (20 for childbearing) Before age 15
2000 2015 AARC p 2000 2015 AARC p
Sub-Saharan Africa
 Marriage
  F 34.8 [25.5, 44.2] 28.0 [18.6, 37.4] − 1.4 0.32 9.4 [5.9, 12.9] 6.7 [3.1, 10.2] − 2.3 0.29
  M 4.4 [3.4, 5.3] 2.5 [1.0, 4.1] − 3.6 0.04 *** *** ***  
 Childbearing
  F 50.9 [47.0, 54.8] 46.5 [42.5, 50.5] − 0.6 0.12 3.8 [2.5, 5.0] 2.9[1.7, 4.2] − 1.6 0.38
 Sexual debut
  F 60.7 [51.7, 69.7] 54.3 [45.2, 63.3] − 0.7 0.33 16.7 [11.8, 21.7] 12.3 [7.3, 17.3] − 2.0 0.22
  M 52.7 [43.5, 61.9] 42.8 [33.5, 52.1] − 1.3 < 0.001 16.1 [12.0, 20.3] 11.6 [7.4, 15.8] − 2.2 0.13
Central Africa
 Marriage
  F 42.6 [34.8, 50.3] 32.4 [24.4, 40.4] − 1.8 0.07 12.0 [7.9, 16.2] 8.6 [4.3, 12.9] − 2.2 0.27
  M 5.1 [3.5, 6.7] 3.9 [0.8, 7.0] − 1.7 0.51 *** *** ***  
 Childbearing
  F 57.8 [52.9, 62.6] 51.4 [46.0, 56.7] − 0.7 0.08 4.8 [3.3, 6.4] 4.2 [2.4, 5.9] − 1.0 0.59
 Sexual debut
  F 74.1 [68.7, 79.5] 65.5 [59.7, 71.2] − 0.8 0.03 22.7 [14.8, 30.6] 17.4 [9.4, 25.4] − 1.8 0.36
  M 66.8 [56.3, 77.3] 57.6 [47, 68.2] − 0.9  < 0.01 23.2 [19.9, 26.4] 17.6 [14.1, 21.2] − 1.8 0.12
West Africa
 Marriage
  F 43.5 [35.5, 51.6] 35.0 [26.8, 43.1] − 1.4 0.14 13.1 [9.0, 17.3] 9.8 [5.5, 14.0] − 2.0 0.27
  M 2.1 [1.6, 2.5] 1.8 [0.9, 2.7] − 0.9 0.61 *** *** ***  
 Childbearing
  F 52.4 [45.9, 58.8] 46.9 [40.4, 53.4] − 0.7 0.24 5.0 [3.7, 6.3] 3.9 [2.5, 5.3] − 1.7 0.25
 Sexual debut
  F 66.2 [58.1, 74.3] 57.8 [49.6, 66.0] − 0.9 0.15 20 [16.1, 23.9] 14.6 [10.7, 18.6] − 4.0 0.06
  M 44.2 [36.9, 51.5] 29.6 [22.2, 37.0] − 2.6 < 0.001 11.3 [8.9, 13.7] 6.2 [3.7, 8.7] − 2.1  < 0.001
Eastern Africa
 Marriage
  F 34.9 [27.3, 42.5] 29.4 [21.3, 37.4] − 1.1 0.33 8.4 [5.5, 11.2] 6.0 [3.1, 9.2] − 2.2 0.27
  M 5.5 [3.4, 7.5] 4.8 [2.1, 7.6] − 0.8 0.73 *** *** ***  
 Childbearing
  F 48.4 [39.6, 57.2] 44.4 [35.5, 53.4] − 0.5 0.54 3.1 [2.1, 4.1] 2.5 [1.5, 3.6] − 1.3 0.48
 Sexual debut
  F 51.8 [40.3, 63.2] 46.9 [35.5, 58.4] − 0.6 0.57 15.0 [11.1, 18.8] 11.2 [7.2, 15.3] − 1.9 0.19
  M 48.4 [38.5, 58.3] 41.1 [31.1, 51.1] − 1.0 < 0.001 16.7 [12.6, 20.9] 12.0 [7.7, 16.3] − 2.2 0.12
Southern Africa
 Marriage
  F 14.6 [6.5, 22.7] 13.2 [5, 21.4] − 0.6 0.83 1.7 [0.9, 2.6] 1.4 [0.6, 2.3] − 1.2 0.65
  M 1.3 [1.2, 1.4] 1.0 [0.7, 1.2] − 1.8 0.01 *** *** ***  
 Childbearing
  F 42.5 [37.6, 47.4] 41.3 [36.1, 46.4] − 0.1 0.76 1.5 [1.1, 1.8] 1.0 [0.5, 1.4] − 2.8 0.08
 Sexual debut
  F 47.9 [42.6, 53.2] 46.7 [40.5, 52.9] − 0.1 0.77 7.3 [6.1, 8.4] 5.6 [4.4, 6.7] − 1.8 0.04
  M 46.7 [31.4, 62.0] 49.3 [32.3, 66.3] 0.3 < 0.01 13.3 [6.7, 19.8] 12.0 [6.0, 18.1] − 0.6 0.80
  1. AARC average annual rate of change (in percentage), and the minus sign indicates a declining trend; p-values reflect statistical significance of the absolute difference in proportion between the year 2000 and 2015; M male, F female. ***Data were not analysed due to small sample size