Impact of vitamin D supplementation on cardio-metabolic status and androgen profile in women with polycystic ovary syndrome: placebo-controlled clinical trial

Middle East Fertility Society Journal

Table 2 Multiple stepwise linear regression analyses in PCOS women to test the influence of the main independent variables against serum 25(OH)-D (ng/ml) levels (dependent variable) in PCOS women

Model		Unstandardized coefficients		Standardized coefficients	t	P value	95% C.I.
Model		β	SE	β	t	P value	Lower bound	Upper bound
1	Constant	32.628	4.418		7.385	˂ 0.001*	23.871	41.386
1	CIMT(mm)	− 12.036	2.805	− 0.382	− 4.291	˂ 0.001*	− 17.595	− 6.476
2	Constant	32.215	4.326		7.446	˂ 0.001*	23.638	40.791
	CIMT(mm)	− 9.845	2.891	− 0.313	− 3.406	˂ 0.001*	− 15.576	− 4.114
	FSI (μU/mL)	− 0 .209	0.087	− 0.221	− 2.410	˂ 0.05*	− 0.382	− 0.037
3	Constant	93.130	20.671		4.505	˂ 0.001*	52.148	134.112
	CIMT(mm)	− 7.383	2.905	− 0.234	− 2.541	˂ 0.05*	− 13.143	− 1.623
	FSI (μU/mL)	− 0.285	0.087	− 0.301	− 3.258	˂ 0.001*	0.458	− 0.112
	FPG (mg/dL)	− 0.717	0.238	− 0.269	− 3.009	˂ 0.001*	− 1.189	− 0.244