Table 1.

Independent samples T- test displaying no difference between cases and controls on sociodemographic characteristics

	Levene’s test for equality of variances		T-test for equality of means
	F	Sig.	T	Sig.	Mean difference	SE difference	95% CI
							Lower	Upper
Age at delivery	0.62	0.43	−0.41	0.68	−0.38	0.93	−2.21	1.45
Weight at delivery	0.10	0.75	1.39	0.17	0.75	0.54	−0.31	1.81
Height of mother	0.12	0.73	1.32	0.19	1.37	1.04	−0.68	3.42