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Table 1 Description of the included studies

From: Primary and secondary infertility in Africa: systematic review with meta-analysis

No Name of Authors Year of Publication Study done Type of study SS (n) PI (%) SI (%) MF (n) FF (n) CF (n) UF (n) Study region
1 Benbella et al. [18] 2018 Morocco Case series 1265 77 23 NR NR NR NR North Africa
2 Nwajiaku et al. [19] 2012 Nigeria Cross-sectional 204 41 59 25 45 20 10 West Africa
3 Gyasi-Sarpong et al. [20] 2017 Ghana Cross-sectional 110 58 42 15 85 NR NR West Africa
4 Sule et al. [21] 2008 Nigeria Case study 200 23 78 6.5 93.5 NR NR West Africa
5 Anyanwu & Idoko [22] 2017 Gambia Cross-sectional 328 34 59 9 NR NR 10 West Africa
6 Dattijo et al. [23] 2016 Nigeria Cross-sectional 406 38 62 11 67 10 12 West Africa
7 Larsen [24] 2006 Tanzania Cross-sectional 178a 37 63 9 66 13 12 East Africa
8 Ikechebelu et al. [25] 2003 Nigeria Cross-sectional 314 65 35 42 26 21 11 West Africa
9 Elhussein et al. [26] 2019 Sudan Cross-sectional 800 69 31 36 43 18 3 North Africa
10 Benksim et al. [27] 2018 Morocco Cross-sectional 619 67 33 NR NR NR NR North Africa
11 Abdella [28] 2011 Sudan Cohort 200 80 21 20 38 31 11 North Africa
12 Inhorn & Buss [8] 1994 Ejypt Case control 100b 56 44 46 82 NR 6 North Africa
13 Panti & Sununu [29] 2014 Nigeria Cross-sectional 198 33 67 20 43 17 21 West Africa
14 Obuna et al. [30] 2012 Nigeria Cross-sectional 266 35 65 23 35 24 18 West Africa
15 Ekwere et al. [31] 2007 Nigeria Cross-sectional 750 48 51 30 58 12 NR West Africa
16 Chigumadzi et al. [5] 1998 South Africa Cross-sectional 100 40 60 NR NR NR 3 Southern Africa
17 Kitilla [32] 2000 Ethiopia Cross-sectional 2503 39 61 NR NR NR NR East Africa
18 Hailemariam [33] 1999 Ethiopia Cross-sectional 171 15 85 NR NR NR NR East Africa
19 Mokhtar et al. [34] 2006 Ejypt Case control 215 80 20 NR NR NR NR North Africa
20 Eric et al. [35] 2016 Burkina Faso Cross-sectional 93 NR NR 35 43 22 NR West Africa
21 Dhont et al. [36] 2011 Rwanda Cohort 224 NR NR NR 31 50 3 East Africa
  1. SS Sample size, PI Primary infertility, SI Secondary infertility, MF Male factor, FM Female factor, CF Combined factor, UF Unidentified factor.
  2. aonly 91 of 178 infertility cases were investigated to identify the factors
  3. bMF was calculated from 87 of 100 cases.
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