Skip to main content

Table 2 Sun-Protective behaviors and CUES among skin cancer cases and age-matched controls, N = 447

From: Estimation of individual cumulative ultraviolet exposure using a geographically-adjusted, openly-accessible tool

Parameter

Controls (n = 298)

Cases (n = 149)

Unadjusted Odds Ratio (95 % confidence interval)a

Adjusted Odds Ratio (95 % confidence interval)b,c

Fitzpatrick Skin Type, n (%)

 1

25 (8)

8 (5)

Ref

Incorporated into factor scoree

 2

112 (38)

80 (54)

2.26 (0.97 – 5.26)

 3

102 (34)

35 (23)

1.10 (0.46 – 2.63)

 4 + 5 + 6

59 (20)

26 (17)

1.40 (0.58 – 3.41)

Use of tanning bed, n (%)

 0

177 (59)

99 (66)

Ref

Incorporated into factor scoree

 1–5

42 (14)

18 (12)

0.76 (0.41 – 1.42)

 6–10

29 (10)

11 (7)

0.66 (0.30 – 1.42)

 11–100

43 (14)

19 (13)

0.77 (0.42 – 1.42)

 >100

7 (2)

2 (1)

0.54 (0.11 – 2.59)

Lifetime number of blistering sunburns, n (%)

 0

41 (14)

14 (9)

Ref

Incorporated into factor scoree

 1 –5

156 (52)

72 (48)

1.3 (0.7 – 2.6)

 - 10

58 (19)

24 (16)

1.2 (0.5 – 2.6)

 >10

43 (14)

39 (26)

2.6 (1.2 – 5.5)

Use of hat, n (%)

 Never

78 (26)

32 (21)

Ref

Incorporated into factor scoree

 Rarely

77 (26)

63 (42)

1.89 (1.11 – 3.23)

 Sometimes

80 (27)

25 (17)

0.74 (0.39 – 1.41)

 Often

45 (15)

23 (15)

1.20 (0.62 – 2.32)

 Always

18 (6)

6 (4)

0.79 (0.28 – 2.21)

Use of long-sleeved clothing, n (%)

 Never

13 (4)

19 (13)

Ref

Incorporated into factor scoree

 Rarely

34 (11)

31 (21)

0.70 (0.29 – 1.66)

 Sometimes

58 (19)

39 (26)

0.56 (0.25 – 1.26)

 Often

112 (38)

37 (25)

0.29 (0.14 – 0.63)

 Always

81 (27)

23 (15)

0.24 (0.11 – 0.55)

Shade seeking, n (%)

 Never

25 (8)

25 (17)

Ref

Incorporated into factor scoree

 Rarely

68 (23)

50 (34)

0.80 (0.42 – 1.54)

 Sometimes

120 (40)

52 (35)

0.50 (0.27 – 0.93)

 Often

79 (27)

21 (14)

0.31 (0.16 – 0.63)

 Always

6 (2)

1 (1)

0.18 (0.02 – 1.76)

Use of sunscreen, n (%)

 Never

16 (5)

13 (9)

Ref

Incorporated into factor scoree

 Rarely

55 (18)

44 (30)

1.01 (0.44 – 2.34)

 Sometimes

84 (28)

62 (41)

0.90 (0.41 – 1.97)

 Often

97 (33)

29 (19)

0.34 (0.15 – 0.82)

 Always

46 (15)

1 (1)

0.03 (0.003 – 0.23)

 Factor score, median (range)e

0.2 (−2.0 – 2.2)

−0.2 (−2.3 – 1.4)

0.56 (0.43 – 0.72)

0.54 (0.41 –0.71)

Family history of skin cancer, n (%)

92 (31)

81 (54)

2.63 (1.73 – 3.99)

3.06 (1.92 – 4.88)

CUESd, median (range)

205,379 (28,439 – 764,540)***

242,074 (44,858 – 898,344)***

  

CUESd, quartilized, n (%)

 4th Quartile

112 (25)

112 (25)

Ref

Ref

 1st Quartile

111 (25)

111 (25)

0.36 (0.19 – 0.69)

0.48 (0.24 – 0.97)

 2nd Quartile

112 (25)

112 (25)

0.62 (0.34 – 1.12)

0.76 (0.38 – 1.49)

 3rd Quartile

112 (25)

112 (25)

0.63 (0.37 – 1.10)

0.75 (0.41 – 1.37)

Lifetime total hours of exposure, median (range)

43,342 (6,630 – 156,520)

55,328 (14,976 – 157,248)

  
  1. aUnivariate logistic regression
  2. bMultivariate logistic regression
  3. cAdjusted for quartilized CUES, family history of skin cancer, and a single factor comprising Fitzpatrick skin type, use of tanning bed, lifetime number of blistering sunburns, use of hat, use of long-sleeved clothing, shade-seeking, and use of sunscreen
  4. dTotal CUES (controls) or CUES prior to first skin cancer diagnosis (cases)
  5. ***p = 0.003 by Wilcoxon rank-sum test
  6. eA single factor was identified during factor analysis, which incorporated Fitzpatrick skin type, use of tanning bed, lifetime number of blistering sunburns, use of hat, use of long-sleeved clothing, shade-seeking, and use of sunscreen
Back to article page

BMC Dermatology

ISSN: 1471-5945

Contact us