A systematic review of endometrial cancer clinical research in Africa

Table 3 Results of critical appraisal of included observational studies using Newcastle‒Ottawa scores

Study	Study design	Total score
Ray, 2019	Case control	7, Good
Ghazala, 2021	Cohort	7, Fair
Abouhashem, 2016	Cohort	8, Good
Aly, 2013	Cohort	9, Good
El Sokkary, 2014	Cohort	8, Good
Gharib, 2020	Cohort	7, Good
Hamed, 2012	Cohort	8, Good
Mourad, 2017	Cohort	9, Good
Sanad, 2019	Cohort^a	7, Fair^a
Shady, 2016	Cohort	9, Good
Shatat, 2019	Cohort^a	7, Fair^a
Soliman, 2011	Cohort^a	7, Fair^a
Rady, 2019^b	Nonrandomized experimental study	8, Good
Wadee, 2021^c	Cross- sectional	8, Good
Elmahdy, 2019	Cross- sectional	7, Good
Ghorbel, 2020	Cross- sectional	7, Good

^aThese studies had an inadequate degree of control; thus, the total score was based on this
^bThis nonrandomized experimental study was evaluated as a cohort study
^cThis author utilized the same patient population for 2 studies, alternately describing the design as a cohort vs a cross-sectional/diagnostic accuracy study. The cohort study was excluded

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