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Table 1 Summary characteristics of studies included in the systematic review and meta-analysis of the prevalence and determinants of adolescent pregnancy in Africa

From: Prevalence and determinants of adolescent pregnancy in Africa: a systematic review and Meta-analysis

Authors & year Study area, country Sub-region Study design and type Study population Range of ages of participants Sample size Response rate (%) Outcome measured Prevalence of adolescent pregnancy
Mathewos and Mekuria, 2018 [12] Arba Minch town, Ethiopia East Africa Cross sectional, institution-based School adolescent students 15 to 19 578 100 Ever pregnant 7.7
Akanbi F et al., 2016 [15] Naguru Teenage Centre Kampala, Uganda East Africa Cross sectional, institution-based Adolescent girls 13 to 19 384 82 Current pregnant 39.7
Sungwe, 2015 [16] Zambia, 2007 DHS East Africa Cross sectional, community-based Adolescent girls 15 to 19 1574 100 Ever pregnant 28.5
Kaphagawani and Kalipeni, 2017 [69] Zomba district, Malawi East Africa Cross sectional, institution-based Women visiting ANC 10 to 19 505 100 Current pregnant 37.1
Agbor et al., 2017 [47] Health facilities in rural Cameroon Central Africa Retrospective study, institution-based All deliveries during the study period 10 to 19 2343 77 Current pregnant 20.4
Malawi 2015–16 DHS, 2017 [45] The 2015–16 DHS, Malawi East Africa Cross sectional, community-based Adolescent girls 15 to 19 5263 100 Ever pregnant 29
Ethiopia 2016 DHS, 2017 [29] The 2016 DHS, Ethiopia East Africa Cross sectional, community-based Adolescent girls 15 to 19 3381 100 Ever pregnant 13
Jonas et al., 2016 [72] South Africa Southern Africa Cross sectional, institution-based School adolescent students 11 to 19 16,614 100 Ever pregnant 20.5
Garba et al., 2016 [48] Aminu kano teaching hospital, Nigeria West Africa Retrospective study, institution-based All deliveries during the study period 15 to 19 9312 100 Current pregnant 5.8
Zimbabwe 2015 DHS, 2016 [45] The 2015 DHS, Zimbabwe East Africa Cross sectional, community-based Adolescent girls 15 to 19 2199 100 Ever pregnant 21.6
Rwanda 2014–15 DHS, 2016 [44] The 2014–15 DHS, Rwanda East Africa Cross sectional, community-based Adolescent girls 15 to 19 2768 100 Ever pregnant 7.3
Lesotho 2014 DHS, 2016 [43] The 2014 DHS, Lesotho Southern Africa Cross sectional, community-based Adolescent girls 15 to 19 1440 100 Ever pregnant 19.1
Tanzania 2015–16 DHS, 2016 [42] The 2015–16 DHS, Tanzania East Africa Cross sectional, community-based Adolescent girls 15 to 19 2904 100 Ever pregnant 26.7
Beyene et al., 2015 [18] Assosa general Hospital, Benishangul Gumuz region, Ethiopia East Africa Cross sectional, institution-based Teenage females visiting hospital for health care services 13 to 19 783 98.3 Ever pregnant 20.4
Okigbo and Speizer, 2015 [70] Five urban areas in Kenya, Kenya East Africa Cross sectional, community-based Unmarried young women 15 to 19 750 100 Ever pregnant 8.1
Ngowa et al., 2015 [49] Yaoundé general hospital, Cameroon Central Africa Retrospective study, institution-based All delieveries during the study period 10 to 19 11,640 100 Current pregnant 2.84
Egbe et al., 2015 [71] Buea health district, South West Region, Cameroon Central Africa Retrospective study, institution-based Women visiting ANC 10 to 19 6564 100 Current pregnant 13.3
Schipulle, 2015 [50] Three health centers in the central Gabon Central Africa Retrospective study, institution-based All delieveries during the study period 12 to 19 1972 100 Current pregnant 23.7
Kenya 2014 DHS, 2015 [40] The 2014 DHS, Kenya East Africa Cross sectional, community-based Adolescent girls 15 to 19 5820 100 Ever pregnant 18.1
Egypt 2014 DHS, 2015 [41] The 2014 DHS, Egypt North Africa Cross sectional, community-based Adolescent girls 15 to 19 5185 100 Ever pregnant 10.9
Ghana 2014 DHS, 2015 [39] The 2014 DHS, Ghana West Africa Cross sectional, community-based Adolescent girls 15 to 19 1625 100 Ever pregnant 14.2
Zambia 2013–14 DHS, 2015 [38] The 2013–14 DHS, Zambia East Africa Cross sectional, community-based Adolescent girls 15 to 19 3625 100 Ever pregnant 28.5
Envuladu et al., 2014 [19] Rural Community in Jos, Plateau State, Nigeria West Africa Cross sectional, community-based Teenage girls 13 to 19 192 100 Ever pregnant 25.5
Brahmbhatt et al., 2014 [67] Urban disadvantaged settings, South Africa Southern Africa Cross sectional, community-based Adolescent girls 15 to 19 224 100 Ever pregnant 28.8
Brahmbhatt et al., 2014 [67] Urban disadvantaged settings, Nigeria West Africa Cross sectional, community-based Adolescent girls 15 to 19 229 100 Ever pregnant 24.1
Gambia 2013 DHS, 2014 [37] The 2013 DHS, Gambia West Africa Cross sectional, community-based Adolescent girls 15 to 19 2407 100 Ever pregnant 17.5
Sierra Leone 2013 DHS, 2014 [36] The 2013 DHS, Sierra Leone West Africa Cross sectional, community-based Adolescent girls 15 to 19 3878 100 Ever pregnant 27.9
Liberia 2013 DHS, 2014 [33] The 2013 DHS, Liberia West Africa Cross sectional, community-based Adolescent girls 15 to 19 2080 100 Ever pregnant 31.3
Namibia 2013 DHS, 2014 [34] The 2013 DHS, Namibia Southern Africa Cross sectional, community-based Adolescent girls 15 to 19 1906 100 Ever pregnant 18.6
Nigeria 2013 DHS, 2014 [35] The 2013 DHS, Nigeria West Africa Cross sectional, community-based Adolescent girls 15 to 19 7820 100 Ever pregnant 22.5
Fayemi et al., 2013 [68] Ekiti state, Nigeria West Africa Cross sectional, community-based Adolescent girls 13 to 18 400 100 Ever pregnant 25
Ugboma et al., 2012 [51] Ebonyi state university teaching hospital, Nigeria West Africa Retrospective study, institution-based All delieveries during the study period 13 to 19 8297 100 Current pregnant 5.5
Iklaki et al., 2012 [52] University of Calabar Teaching Hospital, Calabar, Nigeria West Africa Retrospective study, institution-based All delieveries during the study period 10 to 19 9906 100 Current pregnant 6.5
Ezegwui et al., 2012 [53] Tertiary hospital in Enugu, Nigeria West Africa Retrospective study, institution-based All delieveries during the study period 11 to 19 4422 100 Current pregnant 1.62
Amoran, 2012 [58] Sagamu local government area, Ogun State, Nigeria West Africa Cross sectional, institution-based All pregnant women attending the primary health care 10 to 19 225 100 Current pregnant 22.9
Nyarko, 2012 [22] The 2008 DHS, Ghana West Africa Cross sectional, community-based Adolescent girls 15 to 19 1037 100 Ever pregnant 10.2
Mchunu et al., 2012 [73] South Africa Southern Africa Cross sectional, community-based Youths 10 to 19 3123 96.4 Ever pregnant 19.3
Isa and Gani, 2012 [54] Niger delta university teaching hospital, Bayelsa state, Nigeria West Africa Cross sectional, institution-based All delieveries during the study period 13 to 19 1341 100 Current pregnant 6.2
Uganda 2011 DHS, 2012 [32] The 2011 DHS, Uganda East Africa Cross sectional, community-based Adolescent girls 15 to 19 2048 100 Ever pregnant 23.8
Rasheed et al., 2011 [55] Sohag university hospital, Sohag, Egypt North Africa Retrospective study, institution-based All delieveries during the study period 10 to 19 30,441 100 Current pregnant 7.5
Maduforo and Oluwatoyin, 2011 [59] General hospital Ganye, Nigeria West Africa Cross sectional, institution-based Women visiting ANC 10 to 19 106 100 Current pregnant 50.9
Alemayehu et al., 2010 [23] The 2005 DHS, Ethiopia East Africa Cross sectional, community-based Adolescent girls 15 to 19 3266 100 Ever pregnant 13.6
Tebeu et al., 2010 [56] Referral maternity units in Cameroon Central Africa Retrospective study, institution-based All delieveries during the study period 10 to 19 57,787 99.7 Current pregnant 14.23
Swaziland 2006–07 DHS, 2008 [31] The 2006–07 DHS, Swaziland Southern Africa Cross sectional, community-based Adolescent girls 15 to 19 1274 100 Ever pregnant 22.6
Iloki et al., 2004 [57] Brazzaville university hospital, Congo Central Africa Cross sectional, institution-based All delieveries during the study period < 18 5204 100 Current pregnant 5.3
Fathi, 2003 [25] The 1998 DHS, Cameroon Central Africa Cross sectional, community-based Adolescent girls 15 to 19 1282 100 Ever pregnant 31.2
Eritrea 2002 DHS, 2003 [30] The 2002 DHS, Eritrea East Africa Cross sectional, community-based Adolescent girls 15 to 19 1129 100 Ever pregnant 23
Ayele et al., 2018 [13] Deguwa Tembien district, Tigry, Ethiopia East Africa Case control, community-based Adolescent girls 13 to 19 414 100 Current pregnancy
Izugbara, 2015 [17] 2008 DHS, Nigeria West Africa Cross sectional, community-based Adolescent girls 13 to 19 6592 100 Current pregnancy
Philemon, 2007 [24] Kinondoni Municipality, Dar-Es-Salaam, Tanzania East Africa Cross sectional Adolescent girls 10 to 19 246 83 Current pregnancy
Kupoluyi et al., 2013 [20] 2003 DHS, Nigeria West Africa Cross sectional, community-based Adolescent girls 10 to 19 7819 100 Ever pregnant
Gideon, 2013 [21] 2011 DHS, Uganda East Africa Cross sectional, community-based Adolescent girls 15 to 19 2026 100 Ever pregnant