Table 3. Summary of squamous differentiation endometrioid endometrial cancer studies to predict recurrence.

References	Year	Country	N	Study design	Risk for recurrence
This study	2019	Brazil	84	Case-control	Yes
Misirlioglu et al.[13]	2012	Turkey	223	Case-control	Yes
Jiang et al.[21]	2017	China	630	Retrospective cohort	Yes
Zaino et al.[14]	1991	USA	631	Prospective cohort	No
Sturgeon et al.[22]	1998	USA	648	Case-control	No
Lax et al.[23]	1998	USA	77	Case series	Variable
Abeler et al.[12]	1992	Norway	255	Retrospective cohort	Variable