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Table 1 Descriptive analysis of characteristics and medians of 25-hydroxyvitamin D3 levels at time of diagnosis in melanoma patients

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

  Variables Nº patients* Vitamin D levels ng/ml P
Clinical characteristic* Age at diagnosis of melanoma (years) <55 40 22.5(16.8- 33.4) 0.441
≥55 41 19.7(16.4- 24)
  Gender Male 43 19.5(13.8- 26) 0.477
Female 38 22.8(17.8- 32.6)
  BMI (kg/m2) Normal weight 24 22.9(19.2- 31.6) 0.063
Overweight 24 19.6(15.3- 26.3)
Obese 15 15.7(11.4- 25.4)
  Fitzpatrick skin type Dark 37 22.9(19.4- 32.6) 0.005
Fair 44 18(15.5- 24.4)
  Hair color Dark 53 21.6(16.8- 26.6) 0.912
Light 23 22.4(16.4- 30.6)
  Eye color Dark 38 20.5(13.2- 26.2) 0.777
Light 37 22.2(17.3- 32.5)
  Actinic damage No 62 22(16.6- 29.3) 0.161
Yes 16 18.5(16.3- 32.6)
  Nevus Number <50 34 21.2(13.7- 29.9) 0.266
51-99 17 20.2 (17.8- 24.3)
>100 12 26.05 (19–36.6)
Habits of solar exposure and photoprotection Solar exposure before 10 years old None/Mild 19 16.8(12–27.4) 0.019
Severe/Moderate 59 22.5(17.3- 30.6)
  Solar exposure 10–18 years old None/Mild 20 17.8(14.5- 22.5) 0.08
Severe/Moderate 57 22.9(17.3- 32.6)
  Solar exposure over 18 years old None/Mild 11 17.7(16.4- 23.9) 0.267
Severe/Moderate 29 22.6(16.8- 30.2)
  Photoprotection before 10 years old Usually 25 22.6(17.3- 27.4) 0.569
Never 47 20.8(15.7- 31.1)
  Photoprotection 10–18 years old Usually 16 22.6(17.4- 27) 0.672
Never 33 21.8(16.6- 32.5)
  Photoprotection over 18 years old Usually 35 19.7(16.8- 27.4) 0.824
Never 36 21.7(16–31.8)
Melanoma characteristic* Number of Melanoma SPM 62 20.5(16.4- 27.4) 0.992
MPM 19 21.6(16.8- 31.1)
  Breslow thickness <= 0.75 31 19(13.8- 29.3) 0.544
   0.75-1 15 22.2(17.8- 26)
   > = 1 22 23.1(16.6- 31.1)
  1. The medians (25th - 75th percentiles) of 25-hydroxyvitamin D3 levels were reported. P-values were calculated by U Mann Whitney or Wilcoxon test.
  2. *Not all the patients have complete data.