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Table 5 Association of UV exposure and risk for BCC in cases with histopathological subtypes nodular, sclerodermiform or superficial and matched controls (n = 576 in each group)

From: Basal cell carcinoma risk and solar UV exposure in occupationally relevant anatomic sites: do histological subtype, tumor localization and Fitzpatrick phototype play a role? A population-based case-control study

UV exposure

Casesa

Contr.a

ORb

(95% - CI)b

p

ORc

(95% - CI)c

p

Total UV exposure (leisure time and occupational exposure)

 <  20th percentile (<  8985.0 SED)

107

132

Ref.

Ref.

Ref.

.

.

.

 20. - < 40th percentile (8985.0 - 10,632.6 SED)

117

119

1.74

0.98–3.10

0.058

.

.

.

 40th - < 60th percentile (10,632.7 - 12,565.6 SED)

125

118

1.71

0.99–2.94

0.053

.

.

.

 60th - < 90th percentile (12,565.7 - 18,006.7 SED)

170

160

1.87

1.10–3.18

0.021

.

.

.

 ≥ 90th percentile (≥ 18,006.8 SED)

57

47

2.27

1.17–4.42

0.016

.

.

.

Total UV exposure (high versus moderate exposure)

 40th - < 60th percentile (10,632.7 - 12,565.6 SED)

125

118

Ref.

Ref.

Ref.

.

.

.

 ≥ 90th percentile (≥ 18,006..8 SED)

57

47

1.33

0.78–2.26

0.292

.

.

.

Occupational UV exposure

 < 44th percentile (<  2.9 SED)

251

264

Ref.

Ref.

Ref.

Ref.

Ref.

Ref.

 44th - < 60th percentile (2.9–532.1 SED)

78

101

0.98

0.64–1.51

0.933

0.98

0.63–1.52

0.931

 60th - < 90th percentile (532.2–5870.4 SED)

183

173

1.13

0.80–1.58

0.49

1.13

0.80–1.58

0.49

 ≥ 90th percentile (≥ 5870.5 SED)

64

38

1.98

1.14–3.44

0.015

1.98

1.14–3.44

0.015

Occupational UV exposure (high versus moderate exposure)

 44th - < 60th percentile (2.9–532.1 SED)

78

101

Ref.

Ref.

Ref.

Ref.

Ref.

Ref.

 ≥ 90th percentile (≥ 5870.5 SED)

64

38

2.02

1.09–3.74

0.026

2.02

1.09–3.75

0.026

  1. a number of cases and controls (contr)
  2. b adjusted for age, age2, sex, phototype
  3. c adjusted for age, age2, sex, phototype and non-occupational UV exposure