Abnormal placental cord insertion and adverse pregnancy outcomes: a systematic review and meta-analysis

Table 2 Newcastle-Ottawa Quality Assessment Scale

Study	Year	Representativeness of the exposed cohort	Selection of the non-exposed cohort	Ascertainment of exposure	Demonstration that outcome of interest was not present at the start of study	Comparability of cohorts on the basis of the design or analysis	Assessment of outcome
Burke et al.	2011	*	*	*	*		*
Boulis et al	2013			*	*		*
Brouillet et al	2014	*	*	*	*	*	*
Carbone et al	2008		*	*	*		*
Ebbing et al	2013	*	*	*	*	*	*
Eddleman et al	1992	*	*	*	*	*	*
Esakoff et al	2015	*	*	*	*		*
Feldman et al	2004	*	*	*	*		*
Hasegawa et al	2006	*	*	*	*		*
Hasegawa et al	2009	*	*	*	*		*
Heinonen et al	1996	*	*	*	*		*
Pinar et al	2014			*	*		*
Raisanen et al	2012	*	*	*	*		*
Suzuki et al	2015	*	*	*	*	*	*
Tantbirojn et al	2009			*	*		*
Uyanwah-Akpom et al	1977	*	*	*	*		*
Yerlika et al	2016	*	*	*	*	*	*

Burke et al. [14]; Boulis et al. [24]; Brouillet et al. [25]; Carbone et al. [23]; Ebbing et al. [6]; Eddleman et al. [10]; Esakoff et al. [7]; Feldman et al. [17]; Hasegawa et al. 2006 [18]; Hasegawa et al. 2009 [19]; Heinonen et al. [20]; Pinar et al. [15]; Raisanen et al. [8]; Suzuki et al. [21]; Tantbirojn et al. [16]; Uyanwah-Akpom et al. [9]; Yerlika et al. [22]

ISSN: 2046-4053