Table 1.
Characteristics of the studies included in this systematic review.
| Author & Reference | Publication year | Study area | Subjects | Study design | Sample size | Sampling technique |
|---|---|---|---|---|---|---|
| Teklay et al [14] | 2013 | Kilte Awulaelo District, Tigray region | traditional healers and individuals with traditional medicine knowledge | cross-sectional survey | 72 | Purposive |
| Amsalu et al. [15] | 2018 | Gozamin Wereda, Amhara Region | traditional healers and individuals with traditional medicine knowledge | Reconnaissance survey, cross-sectional survey | 100 | Purposive |
| Mazengia et al. [16] | 2019 | Rural Bahir Dar kebeles, Amhara region | individuals with traditional medicine knowledge | cross-sectional survey | 72 | Purposive |
| Giday et al. [17] | 2007 | Dibatie (Benishangul-Gumuz region and Guangua) (Amhara Region) | traditional healers and individuals with traditional medicine knowledge | cross-sectional survey | 38 | Purposive |
| Gijan and Dalle [18] | 2019 | Arsi Negelle District, Oromia Region |
traditional healers and individuals with traditional medicine knowledge | cross-sectional survey | 90 | Purposive + SRS |
| Misha et al [19] | 2014 | Arsi Negelle district, Oromia Region | residents of shopa bultum kebele | cross-sectional survey | 151 | Systematic random sampling technique |
| Regassa [20] | 2013 | Hawassa city, SNNPR Region | Key informants (40) and other inhabitants (100) | cross-sectional survey | 140 | Purposive + SRS |
| Yineger et al [21] | 2008 | Bale Mountains National Park, Oromia Region | traditional healers | cross-sectional survey | 43 | Purposive |
| Wuletaw [22] | 2020 | Simada District, Amhara Region | Key informants (24) and other inhabitants (136) | Reconnaissance survey, cross-sectional survey | 160 | Purposive + SRS |
| Mesfin et al [23] | 2014 | Amaro Woreda, SNNPR Region | traditional medicinal practioners | cross-sectional survey | 17 | Purposive |
| Amuamuta et al [24] | 2015 | Zegie Peninsula, Amhara Region | traditional healers (7) and traditional medicine users (10) | In-depth interview | 17 | Purposive |
| Abebe [25] | 2011 | Debark District, Amhara Region | Key informants (24) and other inhabitants (60) | Reconnaissance survey, cross-sectional survey | 84 | Purposive + SRS |
| Teklehaymanot et al [26] | 2007 | Debre Libanos Monastery, Oromia Region | Villagers, monks, and nuns | cross-sectional survey | 250 | SRS |
| Tadesse et al [27] | 2018 | Guduru District, Oromia Region | Key informants (21) and other inhabitants (71) | cross-sectional survey | 92 | Purposive + SRS |
| Jima and Megersa [28] | 2018 | Berbere District, Oromia Region | Key informants (20) and other inhabitants (40) | Reconnaissance survey, cross-sectional survey | 60 | Purposive + SRS |
| Birhanu and Ayalew [29] | 2018 | Robe town, Oromia Region | traditional healers | Descriptive survey | 30 | Purposive |
| Limenih et al [30] | 2015 | Dega Damot District, Amhara Region | traditional healers (20) and other inhabitants (50) | community based cross-sectional descriptive study |
70 | Purposive |
| Hundera [31] | 2017 | Kondala District, Oromia Region | traditional healers (20) and other inhabitants (29) | cross-sectional survey | 49 | Purposive + SRS |
| Tewelde et al [32] | 2017 | Laelay Adi-yabo District, Tigray region | traditional healers | cross-sectional survey | 20 | Purposive |
| Sina & Degu [33] | 2015 | Hula District, SNNPR | Inhabitants with knowledge on wild edible plants | cross-sectional survey | 120 | Purposive |
| Gari et al [34] | 2015 | Burka Jato Kebele, Nekemte town, Oromia Region | All inhabitants | descriptive cross-sectional study | 282 | systematic random sampling |
| Taha & Shimekit [35] | 2020 | Debre Markos Town, Amhara District | Herbalists (17), herbal medicine users (10), healthcare professionals (4) | cross-sectional survey | 29 | purposive and snowball |
| Kassa et al [36] | 2016 | Ejere District, Oromia Region | Key informants and inhabitants | Reconnaissance survey, cross-sectional survey | 156 | Purposive and SRS |
SRS: simple random sampling.