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Table 3 Multivariate models for prediction of presence of low levels of 25-Hydroxyvitamin D3

From: Serum 25-hydroxyvitamin D3 levels and vitamin D receptor variants in melanoma patients from the Mediterranean area of Barcelona

N Model Variables OR (95%CI) P
1 Season blood sampling (October- March) 3.25 (1.17-9.03) 0.024
  Skin phototype (Fair) 2.21 (0.81- 6.04) 0.123
2 Season blood sampling (October- March) 3.3 (1.17- 9.27) 0.024
  Skin phototype (Fair) 2.33 (0.84- 6.46) 0.105
  Gender (Male) 1.88 (0.68- 5.21) 0.227
  1. Model 1. Estimation of presence of low levels of 25-Hydroxyvitamin D3 by season blood sampling adjusted by skin phototype.
  2. Model 2. Estimation of presence of low levels of 25-Hydroxyvitamin D3 by season blood sampling adjusted by skin phototype and gender.
  3. Multivariate logistic regression models for estimation of presence of low levels of 25-Hydroxyvitamin D3 suggest that season blood sampling in autumn-winter (October-March) months is the only predictor of low 25-Hydroxyvitamin D3, independently from skin phototype and gender.