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Table 2 Quality of studies using Joanna Briggs Institute (JBI) criteria

From: Heath related quality of life and associated factors among diabetes patients in sub-Saharan countries: a systemic review and meta-analysis

References Criteria for inclusion in the sample clearly defined Study subjects and the setting described in detail Exposure measured in a valid and reliable way Objective, standard criteria used for measurement of the condition Confounding factors identified Strategies to deal with confounding factors stated Outcomes measured in a valid & reliable way Appropriate statistical analysis used Scores Overall quality
1. Rwegerera et al. [21] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
2. Tusa et al. [22] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
3. Gebremedhin et al. [14] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
4. Reba et al. [20] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
5. Aschalew et al. [10] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
6. Muze et al. [18] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
7. Ababio et al. [9] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
8. Jannoo et al. [16] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
9. Ekwunife et al. [13] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
10. Bolarinwa et al. [11] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
11. Odili et al. [6] Yes Yes Yes Yes No No Yes No 5 Low risk
12. James et al. [15] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
13. Werfalli et al. [23] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
14. Daya et al. [12] Yes Yes Yes Yes No No Yes No 5 Low risk
15. Mngomezulu et al. [17] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
16. Nyanzi et al. [19] Yes Yes Yes Yes No Yes Yes Yes 7 Low risk
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