Table 1.
Characteristics of the study subjects included in the eligible articles used for this review.
| Source | Year | Region | Study area | Sample size | Cases | Prevalence (95% CI) | Quality score |
|---|---|---|---|---|---|---|---|
| Andargie et al. | 2008 | Amhara | Gondar food handler | 127 | 3 | 2.4% (0.48-6.90) | 4 |
| Ayalew et al. | 2008 | Dire Dawa | Lege Dini watershed | 655 | 311 | 47.50% (42.30-53.10) | 3 |
| Abera et al. | 2010 | Amhara | Bahir Dar food handler | 384 | 76 | 19.79% (15.60-24.80) | 6 |
| Tigabu et al. | 2010 | Benishangul | Pawi | 384 | 133 | 34.6% (28.90-41.04) | 6 |
| Ayalew et al. | 2011 | Amhara | Delgi primary school children | 704 | 487 | 69.20% (63.10-75.60) | 6 |
| Yihenew | 2011 | Amhara | Fogera Awuramba | 392 | 58 | 14.8% (11.20-19.10) | 3 |
| Gelaw et al. | 2013 | Amhara | Gondar health center | 304 | 40 | 13.20% (9.40-17.90) | 6 |
| Wegayehu et al. | 2013 | Oromia | North Shewa Zone children | 384 | 95 | 24.70% (20.00-30.00) | 6 |
| Wegayehu et al. | 2013 | SNNPR | Gamo rural residence | 858 | 189 | 22.0% (18.90-25.40) | 6 |
| Abossie and Seid | 2014 | SNNPR | Chencha town primary school | 400 | 112 | 28% (23.05-33.60) | 6 |
| Andualem | 2014 | Amhara | Motta Town primary school | 364 | 70 | 19.50% (15.20-24.60) | 6 |
| Beyene and Tasew | 2014 | Oromia | Jimma health center | 260 | 43 | 16.50% (11.90-22.20) | 5 |
| Firdu et al. | 2014 | SNNPR | Yirgalem health center | 230 | 39 | 16.95 (12.05-23.20) | 6 |
| Kidane et al. | 2014 | Tigray | Wukro Town health center | 384 | 163 | 42% (36.20-49.50) | 6 |
| Mekonnen et al. | 2014 | Addis Ababa | Addis Ababa | 355 | 63 | 17.7% (13.60-22.70) | 6 |
| Tulu et al. | 2014 | Oromia | Delo-Mena, Bale Zone | 340 | 26 | 3.60% (4.90-11.20) | 6 |
| Workneh et al. | 2014 | Amhara | Debre Elias primary school | 541 | 44 | 8.13% (5.90-10.90) | 6 |
| Aklilu et al. | 2015 | Addis Ababa | Addis Ababa University | 172 | 86 | 50% (39.90-61.70) | 3 |
| Aleka et al. | 2015 | Amhara | Gondar University Hospital | 277 | 10 | 3.6% (1.70-6.60) | 6 |
| G/Silassie et al. | 2015 | Tigray | Aksum Town primary school | 404 | 127 | 31.4% (26.20-37.40) | 4 |
| Deneke | 2016 | Amhara | Ankober | 403 | 240 | 60.0% (52.20-67.60) | 3 |
| Tulu et al. | 2016 | Oromia | Dolomena (Balie Zone) | 492 | 48 | 9.8% (7.10-12.90) | 6 |
| Birmeka et al. | 2017 | SNNPR | Gurage zone primary school | 450 | 97 | 21.60% (17.40-26.20) | 6 |
| Gebretsadik | 2017 | Benishangul | Homsha district | 395 | 106 | 26.8% (21.90-32.40) | 6 |
| Hailegebriel | 2017 | Amhara | Bahir Dar | 359 | 129 | 35.9% (30.00-42.60) | 6 |
| Senbeta | 2017 | Tigray | Adigrat primary school | 309 | 21 | 6.80% (4.20-10.38) | 5 |
| Berhe et al. | 2018 | Tigray | Mekele | 226 | 101 | 45.3% (36.40-54.30) | 5 |
| Dobo | 2018 | SNNPR | Hawasa | 89423 | 39895 | 44.6% (44.20-45.05) | 3 |
| Gebreyohanns et al. | 2018 | Tigray | Addiremets town | 411 | 13 | 3.2% (1.68-5.40) | 5 |
| Tegegne et al. | 2018 | Amhara | Gondar University Hospital | 256 | 14 | 5.5% (2.90-9.17) | 5 |
| Alemu et al. | 2019 | SNNPR | Gamogofa Zone primary school | 351 | 26 | 7.4% (4.80-10.80) | 6 |
| Asires et al. | 2019 | Amhara | East and West Gojjam | 344 | 96 | 27.9% (22.60-34.07) | 5 |
| Ayalew et al. | 2019 | Amhara | Bahir Dar primary school | 418 | 71 | 16.98% (13.05-21.15) | 5 |
| Ayelgn et al. | 2019 | Amhara | Gondar poly health center | 13329 | 3760 | 28.2% (27.30-29.10) | 5 |
| Eshetu et al. | 2019 | Oromia | Nekemit | 240 | 73 | 30.4% (23.80-38.20) | 6 |
| Gebrecherkos et al. | 2019 | Amhara | University of Gondar | 150 | 45 | 30% (21.80-40.10) | 6 |
| Kumma et al. | 2019 | SNNPR | Wolayta Sodo University | 233 | 47 | 20.2% (14.80-26.80) | 6 |
| Lewetegn et al. | 2019 | Amhara | Senbete and Bete Towns | 214 | 60 | 28.1% (21.30-36.08) | 6 |
| Menjetta et al. | 2019 | SNNPR | Hawasa University Clinic | 13679 | 3782 | 27.6% (26.70-28.50) | 4 |
| Sewunet and Tekelia | 2019 | Amhara | Woreta | 310 | 52 | 16.8% (12.50-21.90) | 5 |
| Shimeles et al. | 2019 | Amhara | Chagni food handler | 400 | 40 | 10% (7.10-13.60) | 6 |
| Sitotaw et al. | 2019 | Amhara | Jawi primary school | 406 | 105 | 25.9% (21.10-31.30) | 6 |
| Tadesse et al. | 2019 | Oromia | Bamo no. 2 primary school | 417 | 74 | 17.7% (13.90-22.20) | 5 |
| Tigabu et al. | 2019 | Amhara | Shahura health center | 364 | 145 | 39.84% (33.60-46.90) | 6 |
| Berhe et al. | 2020 | Tigray | Adigrat | 418 | 248 | 59.30 (52.20-67.20) | 6 |
SNNPR: Southern Nations, Nationalities, and People's Region.