Table 2.

Socio-demographic factors adjusted for in the analyses of 14 of the 22 included studies

	a	b	c	d	e	f	g
Ballotari et al. (2013)28							•
De Luca et al. (2013)29	•	•	•	•		•
Ruud et al. (2015)27	•	•
Shah and Cook (2008)31	•	•		•		•
Nielsen et al. (2012)30	•	•	•	•	•	•
Norredam et al. (2004)22	•	•	•
Carrasco-Garrido et al. (2009)12	•	•		•
Carrasco-Garrido et al. (2007)11	•	•
Hernández-Quevedo and Jiménez-Rubio (2009)13	•	•	•	•		•
Antón and Muñoz de Bustillo (2010)10	•	•	•	•		•
Sanz et al. (2011)14	•	•	•	•		•
Buron et al. (2008)19	•	•				•
Rue et al. (2008)24	•
Cots et al., 200720	•	•				•
Remaining Eight studies

Note: a, adjusted for age; b, adjusted for gender; c, adjusted for socio-economic status; d, adjusted for health status; e, adjusted for time in host country; f, adjusted for other factors (e.g. region, marital status, attending speciality, Triage colour); g,adjusted for mother’s age at delivery, mother’s educational level, child gender, previous live births.