Table 1. Summary of the included studies which were done on the proportion of adequately iodized salt at HH level in Ethiopia, 2013–2020 (n = 28).
| S.No. | Authors | Year of Publication | Region | Study Area | Study Setting | Sample size | Response Rate (%) | NOQS | Proportion HHs using AIS (%) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Mesele et al. [16] | 2014 | Amhara | Lay Armachiho | Both | 694 | 99.4 | 10 | 29.7 |
| 2 | Mekonnen et al. [19] | 2018 | Amhara | Dessie & Combolcha | Urban | 500 | 95.4 | 10 | 68.8 |
| 3 | Ajema et al. [31] | 2020 | SNNPR | Arba Minch | Urban | 875 | 100.0 | 10 | 58.20 |
| 4 | Abebe et al. [17] | 2017 | Amhara | Dabat | Both | 705 | 98.7 | 10 | 33.20 |
| 5 | Anteneh et al. [18] | 2017 | Amhara | Dera | Both | 1194 | 96.2 | 10 | 57.2 |
| 6 | Desta et al. [35] | 2019 | Tigray | Ahferom | Both | 292 | 91.8 | 8 | 17.5 |
| 7 | Gebriel et al. [40] | 2014 | Benishangul Gumuz | Assosa | Urban | 395 | 100.0 | 10 | 26.1 |
| 8 | Wondimagegn et al. [33] | 2018 | SNNPR | Wolaita Sodo | Both | 440 | 99.8 | 10 | 36.7 |
| 9 | Tariku et al. [20] | 2019 | Amhara | Mecha | Both | 700 | 98.0 | 10 | 63.3 |
| 10 | Gebremariam et al. [15] | 2013 | Amhara | Gondar | Urban | 810 | 95.5 | 10 | 28.9 |
| 11 | Hailu et al. [25] | 2016 | Oromia | Robe | Both | 393 | 93.1 | 10 | 29.0 |
| 12 | Gidey et al. [36] | 2015 | Tigray | Laelay Maychew | Rural | 600 | 98.4 | 9 | 33.0 |
| 13 | Yaye et al. [38] | 2016 | Dire Dawa | Dire Dawa | Urban | 694 | 100 | 10 | 7.5 |
| 14 | Hawas et al. [23] | 2016 | Oromia | Assela | Urban | 513 | 96.4 | 10 | 62.9 |
| 15 | Ayigegn et al. [7] | 2020 | Addis Ababa | Kolfie Keranio | Urban | 541 | 95.5 | 10 | 95.5 |
| 16 | Yazew [28] | 2020 | Oromia | Horro | Both | 390 | 100 | 8 | 23.6 |
| 17 | Meselech et al. [24] | 2016 | Oromia | Lalo Assabi | Both | 768 | 95.0 | 10 | 8.7 |
| 18 | Hiso et al. [29] | 2019 | Oromia | Duguda | Rural | 402 | 100 | 10 | 30.7 |
| 19 | Woyraw et al. [22] | 2018 | Amhara | Jabitehinan | Both | 549 | 98.0 | 9 | 48.3 |
| 20 | Aredo et al. [27] | 2020 | Oromia | Hetosa | Both | 596 | 98.8 | 8 | 61.1 |
| 21 | Tigabu et al. [21] | 2017 | Amhara | Gasgibla | Both | 443 | 97.6 | 10 | 17.2 |
| 22 | Asfaw et al. [32] | 2020 | SNNPR | Dewaro Zone | Both | 230 | NR | 7 | 19.1 |
| 23 | Fereja et al. [26] | 2018 | Oromia | Ada | Both | 351 | 98.3 | 10 | 39.3 |
| 24 | Afework et al. [6] | 2019 | Amhara | Dega Damot | Both | 802 | 100.0 | 10 | 4.6 |
| 25 | Ftwi et al. [37] | 2018 | Dire Dawa | Dire Dawa | Urban | 402 | 99.5 | 10 | 49.0 |
| 26 | Belay | 2020 | Addis Ababa | Kolfie Keranio | Urban | 417 | 98.5 | 10 | 63.8 |
| 27 | Stoecker et al. [34] | 2020 | SNNPR | Sidama Zone | Both | 269 | NR | 7 | 21.0 |
| 28 | Tololu et al. | 2016 | Oromia | Goba Town | Urban | 596 | 99.7 | 9 | 30.0 |
NOQS: Newcastle Ottawa Quality Score; HH: Household; AIS: Adequately Iodized Salt.