| Study ID | Study year | Prevalence | Sample | Region | Quality |
| Zenebe Y, 2014 [36] | 2014 | 3.8 | 318 | Amhara | 9 | Desalegn Z, 2016 [41] | 2014 | 6 | 215 | Addis Ababa | 8 | Gedefaw G, 2019 [32] | 2018 | 4.7 | 338 | Amhara | 8 | Chernet A, 2017 [47] | 2015 | 3.5 | 289 | SNNPR | 9 | Tiruye G, 2018 [43] | 2017 | 6.3 | 320 | Harar | 7 | Tanga A, 2019 [45] | 2017 | 7.9 | 253 | Gambella | 9 | Tegegne D, 2014 [34] | 2012 | 3 | 265 | Addis Ababa | 6 | Ramos JM, 2011 [39] | 2011 | 6.1 | 165 | SNNPR | 9 | Molla S, 2015 [30] | 2013-2014 | 4.4 | 384 | Amhara | 9 | Umare A, 2016 [44] | 2015 | 6.9 | 318 | Oromia | 9 | Dabsu R, 2018 [33] | 2018 | 2.4 | 421 | Oromia | 7 | Temesgen A, 2020 [11] | 2017 | 4.5 | 222 | SNNPR | 8 | Amsalu A, 2018 [29] | 2015-2016 | 7.2 | 475 | SNNPR | 6 | Awole M, 2005 [37] | 2002-2003 | 3.7 | 493 | Oromia | 7 | Walle F, 2008 [24] | 2004 | 5.3 | 209 | Amhara | 7 | Desalegn Z, 2016 [40] | 2014 | 5.4 | 202 | Oromia | 9 | Yohanes T, 2016 [31] | 2015 | 4.3 | 232 | SNNPR | 8 | Fissehatsion K, 2017 [42] | 2014 | 5 | 403 | Addis Ababa | 6 | Metaferia Y, 2016 [35] | 2015 | 7.8 | 269 | SNNPR | 8 | Seid M, 2014 [23] | 2014 | 4.9 | 385 | Amhara | 7 | Mezgebo T, 2017 [46] | 2015 | 5.5 | 328 | Tigray | 6 | Schönfeld A, 2017 [38] | 2014-2015 | 5.3 | 580 | Oromia | 7 | Deme C, 2016 [14] | 2016 | 2.3 | 574 | SNNPR | 7 |
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