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Table 2 Assessment of the quality of included studies

From: Epidemiology of burn injuries in the East Mediterranean Region: a systematic review

Item Number of studies with criteria (%)
1. Hypothesis/aims of the study clearly stated 71 (100)
2. Main outcomes clearly described in the introduction/methods 71 (100)
3. Study design clearly described 62 (87)
4. Setting of the study clearly described 63 (88)
5. Source of the subjects clearly described 36 (51)
6. Sample size calculation stated and justified 7 (14)
7. Sample representative of the target population 10 (14)
8. Participation/response rate stated 9 (13)
9. (Retrospective studies) Study covers all the records of the specified time 31 (72)
10. (Retrospective studies) Limitations of the records described 5 (12)
11. (Prospective studies) Strategies described to improve participation/follow up 2 (7)
12. Non-participants/subjects lost to follow up described 4 (9)
13. Exposures accurately measured to minimize bias 67 (94)
14. Outcomes accurately measured to minimize bias 69 (97)
15. Results clearly described 71 (100)
16. Statistical methods sound and justified 68 (96)
17. P-values reported 42 (59)
18. Confidence intervals reported 44 (62)
19. Limitations of the study described 17 (23)
20. Main outcome measurements can be considered valid 71 (100)
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