S/N

Authors and year of publication

Study area

Sample size (n)

Quality of score

%(95%CI)

1.                    

Mekonnen, et al., 2018

Bahirdar

616

7

11.85 (9.30, 14.40)

2.                    

Sorrie, et al., 2017

Gondar

500

7

13.80 (10.78, 16.82)

3.                    

Tsedeke and Tefera, 2014

Hawassa

358

5

10.61 (7.42, 13.81)

4.                    

Birhanu, et al., 2019

Diredawa

590

6

11.53 (8.95, 14.10)

5.                    

Dessalegn, et al., 2017

South Ethiopia

600

7

11.17 (8.65, 13.69)

6.                    

Berhane, et al., 2020

Addis Ababa

5822

9

11.41 (10.59, 12.22)

7.                    

Solomon, et al., 2020

Ethiopia

3602

9

14.83 (13.66, 15.99)

8.                    

Askal, et al., 2015

Addis Ababa

828

8

9.78 (7.76, 11.81)

9.                    

Dessalew, et al., 2017

Diredawa

448

7

20.54 (16.79, 24.28)

10.                 

Dessalegn, et al., 2018

Addis Ababa

390

7

18.21 (14.38, 22.03)

11.                 

Kalkidan, et al., 2017

Jimma Zone

550

7

7.09 (4.95, 9.24)

12.                 

Mulugeta, et al., 2016

Addis Ababa

446

7

11.25 (11.91, 18.58)

13.                 

Tesfalem, et al., 2013

Hawassa

554

7

12.82 (10.03, 15.60)

14.                 

Tsedey, et al., 2018

Addis Ababa

1276

9

17.01 (14.94, 19.07)

15.                 

Zelalem, et al., 2015

Bahirdar

407

7

16.46 (12.86, 20.06)

16.                 

Emana, et al., 2014

Addis Ababa

800

8

9.38 (7.36, 11.39)

17.                 

Bogale and Zewale, 2019

Hawassa City

445

7

29.21 (24.99, 33.44)

18.                 

Darebo, et al., 2019

Hawassa

524

7

28.24 (24.39, 32.10)

19.                 

Gutema, et al., 2020

Arbaminch

3346

9

10.79 (9.74, 11.84)

20.                 

Samuel, et al., 2019

Dessie

673

8

28.68 (25.26, 32.09)

21.                 

Nega and Beyene, 2019

Southern Ethiopia

206

6

24.76 (18.86, 30.65)

22.                 

Yosef et al., 2020

Ethiopia

400

6

31.25 (26.71, 35.79)

23.                 

Mekonnen and Bogale, 2017

Ethiopia

2938

8

3.44 (2.78, 4.10)

24.                 

Girmay and Hassen, 2014

Addis Ababa

950

7

14.95 (12.68, 17.21)

25.                 

Nurezeman, et al., 2017

Jimma

549

7

19.49 (16.18, 22.80)

Total

28124 (98.38%)

Average (7.28)

13.04 (12.64, 13.43)^*