Table 3.

Description of excluded cross sectional studies

Authors	Year of publication	Location	Study period	Weight/height measurement	BMI classification	Adjusted for	Outcomes reported
Blomberg and Kallen [33]	2010	Sweden	Jan 1995 to Dec 2007	First antenatal clinic by mid wife	UW < 18.5 NW 18.5 to 24.9 OW 25 to 29.9 Obese ≥ 30	Maternal age, parity, smoking, year of birth	Orofacial cleftd
Cedegren and Kallen [44]	2005	Sweden	Jan 1992 to Dec 2001	First antenatal visit	UW < 19.8 NWa 19.8 to 26 OWb 26.1 to 29 Obesec > 29	Year of birth, maternal age, parity, maternal smoking	CL CP CLP

^aExcluded because NW is not according to WHO classification.

^bExcluded because OW is not according to WHO classification.

^cExcluded because obese is not according to WHO classification.

^dExcluded because orofacial cleft was not sub-divided.

NW = normal weight (reference weight); OW = overweight; UW = underweight; CL = cleft lip; CP = cleft palate; CLP = cleft lip with or without palate; orofacial cleft = CP+CLP.