Prevalence of Chronic Kidney Diseases in Patients with Diabetes Mellitus in the Middle East: A Systematic Review and Meta-Analysis

Table 2

Quality assessment of included studies.

Author (ref), year of the study	Representativeness of the sample	Sample size	Comparability (non-CKD)	Outcome (ascertainment of CKD)	Statistics	Total	Quality
Moher et al., 2009 [19]	Yes	Yes	No	No	Yes	3	High
Stroup et al., 2014 [20]	Yes	Yes	Yes	Yes	Yes	4	High
Schardt et al., 2013 [21]	Yes	Yes	No	Yes	Yes	4	High
Alzahrani et al. [27]	Yes	Yes	Yes	Yes	Yes	4	High
Alrawahi et al. [28]	Yes	Yes	Yes	Yes	Yes	4	High
Mohammed et al. [29]	Yes	Yes	Yes	Yes	Yes	4	High
Schardt et al. [21]	Yes	Yes	Yes	Yes	Yes	4	High
Jamal Shahwan et al. [30]	Yes	Yes	Yes	Yes	Yes	4	High
Al-Shamsi et al. [31]	Yes	Yes	Yes	Yes	Yes	4	High
Khalil et al. [32]	Yes	Yes	Yes	Yes	Yes	4	High