Author/Year | Study year | Region | Study design | Sample size | Prevalence | Study population |
---|---|---|---|---|---|---|
Ayele AS et al./2019 [25] | February 1 to March 1, 2016 | Addis Ababa | Cross-sectional | 369 | 33.9 | All elective surgical patients |
Desta M et al./2018 [33] | March 1 to 30, 2018 | SNNPR | Cross-sectional | 462 | 31.6 | All elective surgical patients |
Haile M and Desalegn N/2015 [32] | February 1 to June 30, 2014 | Oromia | Cross-sectional | 1438 | 23 | All elective surgical patients |
Bekele M et al./2020 [24] | March 1, 2018 to February 28, 2019 | Addis Ababa | Cross-sectional | 2548 | 8.9 | All elective surgical patients |
Gebresellassie HW and Tamerat G/2019 [31] | June 1, 2016 to May 30, 2017 | Addis Ababa | Cross-sectional | 774 | 10.7 | All elective surgical patients |