Perinatal outcomes of human singletons conceived naturally versus assisted reproductive technologies: analysis of the effect of stimulated IVF, modified natural IVF, and frozen embryo transfer

Middle East Fertility Society Journal

Table 4 Multiple comparisons of birth weight between different modes of conception

Mode of conception (1)	Mode of conception (2)	Mean difference (1-2)	Std. error	p value	95% Confidence interval
Mode of conception (1)	Mode of conception (2)	Mean difference (1-2)	Std. error	p value	Lower bound	Upper bound
NAT	mnIVF	50.07	33.090	0.782	−37.24	137.38
NAT	sIVF	94.38	25.843	0.002	26.19	162.57
NAT	FET	−92.77	34.031	0.038	−182.56	−2.98
mnIVF	sIVF	44.31	41.601	1.000	−65.46	154.08
mnIVF	FET	−142.84	47.127	0.015	−267.19	−18.49
sIVF	FET	−187.15	42.353	<0.0001	−298.90	−75.40