From: Epidemiology of khat (Catha edulis) consumption among university students: a meta-analysis
Study | Overall agreement and precision | Nos quality (score on 0 to 9 scale) | ||
---|---|---|---|---|
Percentage of agreement | Kappa value | Level of agreement | Â | |
Dida et.al. (2014) [33] | 75 | 0.60 | Moderate | 7 |
Tesfaye (2013) [34] | 100 | 1 | Almost perfect | 8 |
Hagos et.al. (2013) [35] | 75 | 0.60 | Moderate | 7 |
Mekonen et.al. (2017) [36] | 100 | 1 | Almost perfect | 8 |
Tadesse et.al. (2014) [37] | 100 | 1 | Almost perfect | 9 |
Eshetu et.al. (2006) [38] | 100 | 1 | Almost perfect | 8 |
Shiferaw et al. (2017) [39] | 75 | 0.60 | Moderate | 7 |
Kassa et.al. (2016) [40] | 100 | 1 | Almost perfect | 9 |
Gebreslassie et.al (2013) [41] | 100 | 1 | Almost perfect | 9 |
Deressa et.al. (2010) [42] | 100 | 1 | Almost perfect | 9 |
Dessie et.al. (2013) [43] | 75 | 0.60 | Moderate | 7 |
Adere et.al. (2017) [44] | 100 | 1 | Almost perfect | 8 |
Reda AA et.al (2012) [25] | 100 | 1 | Almost perfect | 8 |
Mulugeta Y. et.al (2015) [45] | 100 | 1 | Almost perfect | 8 |
Kebede (2005) [46] | 100 | 1 | Almost perfect | 9 |
Abdeta et al. (2017) [47] | 100 | 1 | Almost perfect | 8 |
Astatkie et al. (2015) [48] | 100 | 1 | Almost perfect | 8 |
Gebrehanna et al. (2014) [49] | 100 | 1 | Almost perfect | 8 |
Alsanosy et al. (2013) [51] | 100 | 1 | Almost perfect | 8 |
Quadri et al. (2015) [52] | 100 | 1 | Almost perfect | 9 |
Ageely (2009) [27] | 100 | 1 | Almost perfect | 8 |
Kubas Ma et.al. 2015 [53] | 100 | 1 | Almost perfect | 9 |
Alkhader nl et.al (2009) [54] | 75 | 0.50 | Moderate | 6 |
Dhaifullah et.al (2013) [55] | 75 | 0.60 | Moderate | 7 |
Dachew BA.et al.(2014) [50] | 100 | 1 | Almost perfect | 9 |