Table 5. Vitamin D status (lower quartile [<45.3 nmol/L], <50 nmol/L, upper quartile [≥69.8 nmol/L]) at time of diagnosis, in relation to Breslow thickness (≥0.75 mm vs. <0.75 mm).

Vitamin D status	Crude OR	95% CI	P-value	Adjusted OR a	95% CI	P-value
≥45.3 nmol/L	Reference			Reference
<45.3 nmol/L	5.30	1.72, 16.40	0.01	5.03	1.32, 19.09	0.02
≥50 nmol/L	Reference			Reference
<50 nmol/L	3.59	1.18, 10.93	0.03	3.82	1.03, 14.14	0.04
≥69.8 nmol/L	Reference			Reference
<69.8 nmol/L	0.97	0.28, 3.34	0.96	0.83	0.19, 3.58	0.80

^a Adjusted for age, sex, ITA value, BMI, season at diagnosis