. 2013 Jun 7;5:ecurrents.dis.54a8b618c1bc031ea140e3f2934599c8. [Version 1] doi: 10.1371/currents.dis.54a8b618c1bc031ea140e3f2934599c8

Table 2. Maternal Body Mass Index.

*ORs measured against the reference BMI <22.8 kg/m2 (implying that BMI ≥22.8 kg/m2 is protective against LBW but that BMI >27.1 kg/m2 is statistically significant with regard to low risk to LBW); ^$no p-value given; according to researchers this value is best cut-off limit with highest sensitivity and specificity product.

In BOLD statistically significant

MATERNAL BMI
Study	Countries	Study population	Subjects (n)	Study type	Measured at	Cut-off value	Stat.test	LBW	IUGR	Pre-term
Karim, Mascie-Taylor 1997 ²⁹	Bangladesh	PW attending MCH clinics	251 women	prospective	3rd trimester	<18.5 kg/m2	OR (95%CI)	7.6 (1.89-32.54)
					3rd trimester	<20.5 kg/m2	OR (95%CI)	6.47 (3.15-13.37)
					3rd trimester	<22.5 kg/m2	OR (95%CI)	3.32 (1.53-7.31)
Mohanty, Prasad, Reddy et al 2006³	India	PW from antenatal clinics	395 women	prospective	1st trimester	≤20.0 kg/m2	RR	2.16^$
Sahu, Agarwal, Das et al 2007³⁹	India	PW delivering in a hospital	380 women	prospective	early second trimester	<19.8 kg/m2	RR (95%CI)	2.1 (1.2-3.7)	1.3 (0.5-3.6)	0.6 (0.1-3.9)
Ogbanna, Woelk, Ning et all 2007³¹	Zimbabwe	PW admitted in hospital for labour and delivery	498 women	cross-sectional	end of pregnancy	22.8-24.6 kg/m2	OR (95%CI)	0.51 (0.25-1.01)*
					end of pregnancy	24.6-27.1 kg/m2	OR (95%CI)	0.51 (0.26-1.02)*
					end of pregnancy	>27.1 kg/m2	OR (95%CI)	0.25 (0.10-0.60)*
Ojha and Malla 2007³³	Nepal	PW delivering in a hospital	308 women	prospective	measured at delivery	<18.5 kg/m2	OR (95%CI)	1.9 (0.61-5.65)
Elshibly, Schmalisch 2008³⁵	Sudan	PW delivering in a hospital	1000 women	prospective	delivery	<25 kg/m2	RR (95%CI)	1.15 (0.81-1.62)
Sen, Roy, Mondal 2010³⁶	India	PW delivering in a hospital	503 women	cross-sectional	delivery	<18.5 kg/m2	RR (p-value)	2.9 (p<0.0001)