Table 4.

Univariable and multivariable analysis of the association of 25-hydroxy vitamin-D with invasive breast cancer

Model number	Variables in model	Odds ratio	95% CI for odds ratio	p value
Model 1	25-Hydroxy vitamin-D
	<72 nmol/l	1.25	0.88–1.77	0.21
	≥72 nmol/l	1.00
Model 2	25-Hydroxy vitamin-D
	<72 nmol/l	1.14	0.79–1.63	0.48
	≥72 nmol/l	1.00
	Treatment
	Placebo	1.00
	Tamoxifen	0.45	0.33–0.61	<0.001
Model 3	25-Hydroxy vitamin-D
	<72 nmol/l	1.06	0.73–1.53	0.76
	≥72 nmol/l	1.00
	Treatment
	Placebo	1.00
	Tamoxifen	0.44	0.32–0.61	<0.001
	Body mass index
	<25.0	1.00
	≥25.0	1.45	1.06–2.00	0.02
Model 4	25-Hydroxy vitamin-D
	<72 nmol/l	1.07	0.74–1.54	0.73
	≥72 nmol/l	1.00
	Treatment
	Placebo	1.00
	Tamoxifen	0.44	0.32–0.61	<0.001
	Body mass index
	<25.0	1.00
	25.0–29.9	1.51	1.06–2.15
	≥30.0	1.38	0.93–2.03	0.06