| First author/publication year | Country | Study design | Sample size | PNC | ANC | PNC | Key findings | Yes | No |
| Tesfahun et al./2014 [16] | Ethiopia | Cross-sectional | 820 | 548 | Yes | 507 | 198 | PNC proportion (66.8%), AOR 2.36, 95% CI 1.31-4.23 | No | 41 | 74 | Shiferaw et al./2016 [17] | Ethiopia | Prospective follow-up | 1,201 | 376 | Yes | 288 | 495 | PNC proportion (31.3%), AOR 2.77, 95% CI 2.12-3.61 | No | 88 | 362 | Jacobes et al./2017 [20] | Zambia | Cross-sectional | 551 | 355 | Yes | 137 | 13 | PNC proportion (64.4%), AOR 2.42, 95% CI 1.43-3.62 | No | 289 | 89 | Limenih et al./2016 [19] | Ethiopia | Cross-sectional | 588 | 197 | Yes | 138 | 163 | PNC proportion (33.5%), AOR 1.01, 95% CI 0.54-1.91 | No | 59 | 228 | Izudi et al./2017 [21] | South Sudan | Cross-sectional | 385 | 44 | Yes | 38 | 196 | PNC proportion (11.4%), ANC have no association with PNC | No | 6 | 145 | Darega et al./2016 [10] | Ethiopia | Cross-sectional | 703 | 223 | Yes | 210 | 169 | PNC proportion (31.7%), AOR 4.95, 95% CI 2.50-9.80 | No | 13 | 111 | Hordofa et al./2015 [22] | Ethiopia | Cross-sectional | 736 | 256 | Yes | 234 | 333 | PNC proportion (34.8%), AOR 4.9, 95% CI 2.91-7.57 | No | 22 | 147 | Abosse et al./2015 [25] | Ethiopia | Cross-sectional | 691 | 157 | Yes | 152 | 442 | PNC proportion (22.7%), AOR 0.148, 95% CI 0.039-0.56 | No | 3 | 92 | Njoka et al./2017 [18] | Kenya | Cross-sectional | 399 | 180 | Yes | 171 | 195 | PNC proportion (45.1%), Chi square () 4.62, value 0.03 | No | 9 | 24 | Rwabufigiri et al./2016 [27] | Rwanda | Cross-sectional | 2,748 | 351 | Yes | 145 | 691 | PNC proportion (12.8%), AOR1.18, 95% CI 0.91-1.63 | No | 206 | 1698 | Dutamo et al./2015 [23] | Ethiopia | Cross-sectional | 623 | 320 | Yes | 303 | 243 | PNC proportion (51.4%), AOR 1.2, 95% CI 0.4-3.5 | No | 17 | 60 | Mohan et al./2015 [26] | Tanzania | Cross-sectional | 1,931 | 437 | — | — | — | PNC proportion (22.6%), AOR 2.71, 95% CI 0.7-6.3 | — | — | — | Akungaa et al./2014 [24] | Kenya | Cross-sectional | 3,970 | 1,882 | Yes | 1770 | 1830 | PNC proportion 10.4%, AOR 1.89, 95% CI 1.23-2.9 | No | 110 | 261 | Birhanu e tal/2016 [28] | Ethiopia | Cross sectional | 422 | 277 | Yes | 273 | 139 | PNC 65.6%, AOR 4.6, 95% CI 1.0-7.8 | No | 4 | 6 |
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