Table 1.
Characteristics and quality status of the studies
| First Author/Year | Study region | Study design | Sample size | Prevalence (%) | Quality status |
|---|---|---|---|---|---|
| Zenebe et al./2014 [38] | Amhara | Cross-sectional | 540 | 22.5 | Low risk |
| Gebremariam A/2005 [47] | Oromia | Cross-sectional | 1441 | 10.2 | Low risk |
| Abdo RA et al./2016 [67] | SNNPR | Cross-sectional | 327 | 9.8 | Low risk |
| Adane AA et al./2014 [39] | Amhara | Cross-sectional | 481 | 11.2 | Low risk |
| Assefa N et al./2012 [48] | Oromia | Cohort | 956 | 28.3 | Low risk |
| Nekatibeb G 2007 [49] | Oromia | Cross-sectional | 1832 | 8.6 | Low risk |
| Kebede B et al./2013 [89] | Amhara | Retrospective cohort | 416 | 21.4 | Low risk |
| Eshete A et al./2013 [41] | Amhara | Cross-sectional | 266 | 12.8 | Low risk |
| Gebremedhin S et al./2012 [68] | SNNPR | Prospective cohort | 575 | 16.5 | Low risk |
| Mulatu H /2015 [63] | Addis Ababa | Cross-sectional | 457 | 8.8 | Low risk |
| Teshome D et al. /2006 [42] | Amhara | Cross-sectional | 810 | 15.4 | Low risk |
| Asefa M /2004 [50] | Oromia | Prospective Cohort | 7586 | 10.0 | Low risk |
| Mekbib TA/1995 [64] | Addis Ababa | Cross-sectional | 7170 | 28.0 | Low risk |
| Edris M /1996 [43] | Amhara | Cross-sectional | 393 | 17.8 | Low risk |
| Mengesha GH et al./2017 [57] | Tigray | Cross-sectional | 1152 | 10.5 | Low risk |
| Gebremedhin M et al./2015 [58] | Tigray | Cross-sectional | 308 | 14.6 | Low risk |
| Teklehaimanot N et al./2014 [59] | Tigray | Cross-sectional | 520 | 8.1 | Low risk |
| Sheferaw T/1990 [51] | Oromia | Cross-sectional | 1707 | 12.3 | Low risk |
| Gebregzabiherher Y et al./2017 [60] | Tigray | Cross-sectional | 424 | 10.0 | Low risk |
| Zeleke BM et al./2012 [44] | Amhara | Cross-sectional | 305 | 17.1 | Low risk |
| Gessessew A/2007 [61] | Tigray | Cross-sectional | 7249 | 11.2 | Low risk |
| Zerfu TA et al./2016 [52] | Oromia | Prospective cohort | 374 | 9.1 | Low risk |
| Tema T/2006 [53] | Oromia | Cross-sectional | 645 | 22.5 | Low risk |
| Korsak VS/1989 [30] | Addis Ababa | Cross-sectional | 1106 | 55.9 | Low risk |
| Wado YD et al./2014 [54] | Oromia | Prospective cohort | 537 | 17.9 | Low risk |
| Mekonen HK et al./2015 [62] | Tigray | Prospective cohort | 1516 | 54.0 | Low risk |
| Feleke Y/1999 [65] | Addis Ababa | Cross-sectional | 4206 | 9.1 | Low risk |
| Tilahun T et al./2015 [55] | Oromia | Prospective cohort | 576 | 34.2 | Low risk |
| Enquoselassie F /2000 [66] | Addis Ababa | Cross-sectional | 9950 | 8.4 | Low risk |
| Madebo T/1994 [29] | SNNPR | Cross-sectional | 1260 | 8.0 | Low risk |
| Demelash H et al. /2015 [56] | Oromia | Case-control | 387 | __ | Low risk |
| Yesuf A et al./2016 [46] | Amhara | Case-control | 453 | __ | Low risk |
| Desalegn L/2015 [45] | Amhara | Case-control | 441 | __ | Low risk |