Table 4.

Newcastle Ottawa Scale (NOS) score for the methodological quality assessment of observational studies.

Study	S1	S2	S3	S4	C	E1	E2	E3	Total Scale	Quality
Da Roza et al. Int Urogynecol J 2012 [35]	*	*	–	–	*	–	*	–	4	Moderate
Rivalta et al. Health Care Women Int. 2010 [36]	*	*	–	–	*	–	*	–	4	Moderate
Rodriguez-Longobarto et al. Urogynecology (Phila) 2023 [37]	*	*	–	–	*	–	*	–	4	Moderate