Table 2 Pre-randomisation vitamin D levels for the season when sample was taken and association with specific melanoma disease characteristics

From: 25-hydroxyvitamin D serum levels in patients with high risk resected melanoma treated in an adjuvant bevacizumab trial

  

Pre-randomisation vitamin D levels in nmol/L

 

N

Median [interquartile range]

All patients

341

56.5 [38.6–76.5]

Timing of sample (season)

 January–March

96

47.1 [30.0–69.0]

 April–June

77

54.3 [36.3–75.3]

 July–September

77

73.3 [57.5–90.7]

 October–December

91

52.2 [38.0–68.3]

Primary melanoma Breslow thickness at diagnosis in mm

 ≤2

103

54.5 [36.2–72.6]

 >2-4

107

56.9 [39.1–82.3]

 >4

111

56.9 [43.1–75.7]

 Unknown

20

56.3 [38.9–82.4]

Primary melanoma ulceration

 Present

137

54.9 [41.0–76.7]

 Absent

151

60.1 [36.9–77.2]

 Unknown

53

53.3 [39.1–71.2]

Disease stage at trial entry

 II

90

55.6 [42.3–76.6]

 III

251

56.6 [37.7–76.5]

Time from initial melanoma diagnosis to randomisation in years

 <1

233

56.5 [40.0–76.6]

 1–2

40

54.3 [36.3–75.9]

 >2

68

57.2 [37.4–71.6]

Trial arm

 Bevacizumab

171

52.6 [37.5–76.7]

 Observation

170

59.8 [39.8–76.5]