Table 1.

Demographic data

		Case Group I	Control Group II	χ2	p value
Antenatal visits	Booked	3	31	17.550	0.000
	Unbooked	49	21
Modified Kuppuswamy’s SE scale status (education, occupation, family income per month in Rs)	Upper	10	12	1.277	0.735
	Upper middle	20	22
	Lower middle	12	12
	Upper lower	10	6
	Lower	0	0
Past H/O PTL or abortion	Present	11	4	3.817	0.050
	Not present	41	48
BMI	Normal	41	40	6.661	0.084
	Obese	1	6
	Overweight	7	6
	Underweight	3	0
Work	Working	7	6	0.088	0.767
	Not working	45	46