Table 1

Selected characteristics by ever indoor tanning status stratified by gender

Females n = 281

Males n = 120


Never Indoor

Never Indoor

Indoor Tanners

Tanners

Indoor Tanners

Tanners

Characteristic

n = 206

n = 75

P valuea

n = 46

n = 74

P valuea


Median (IQR)

Median (IQR)


Age at skin biopsy, y

36.8 (33.2-38.4)

37.4 (34.1-39.1)

0.111

36.2 (31.2-38.4)

36.5 (31.3-38.4)

0.848

Sunbathing sessions, n

490 (268-870)

162 (51-386)

< 0.001

106 (34-458)

11 (34-458)

0.001

BMI, kg/m2

22.8 (20.8-26.6)

24.3 (21.5-28.6)

0.053

27.3 (25.2-35)

27.4 (24.8-30.7)

0.955

Pounds gained since age 18, lbs

15 (2-30)

16 (5-36)

0.126

25 (12.8-35)

20 (10-40)

0.672

Alcoholic drinks under age 25, n

416 (0-1664)

104 (0-1141)

0.399

2040 (0-4928)

1410 (107-3631)

0.901

Alcoholic drinks per year age 25+, n

112 (0-214)

77 (0-240)

0.688

197 (0-571)

212 (60.0-502)

0.417


nb (%)

nb (%)


Eye color, n (%)

0.035

0.705

Brown

90 (43.7)

24 (32.0)

20 (43.5)

28 (37.8)

Hazel

41 (19.9)

14 (18.7)

8 (17.4)

11 (14.9)

Green

17 (8.3)

15 (20.0)

1 (2.2)

5 (6.8)

Blue

58 (28.2)

22 (29.3)

17 (37.0)

30 (40.5)

Skin Color, n (%)

0.042

0.797

Olive

43 (20.9)

14 (18.7)

10 (21.7)

16 (21.6)

Fair

128 (62.1)

38 (50.7)

30 (65.2)

45 (60.8)

Very Fair

35 (17.0)

23 (30.7)

6 (13.0)

13 (17.6)

Skin reaction with first summer sun, n (%)

0.062

0.811

Sunburn

85 (41.3)

41 (54.7)

15 (32.6)

21 (28.4)

Tan

121 (58.7)

34 (45.3)

31 (67.4)

52 (70.3)

Skin reaction with prolonged sun, n (%)

0.024

0.616

Deep Tan

42 (20.4)

6 (8.0)

8 (17.4)

17 (23.0)

No/Mild/Moderate Tan

164 (79.6)

69 (92.0)

38 (82.6)

57 (77.0)

Smoking Status, n (%)

0.214

0.190

Not Current Smoker

172 (83.5)

66 (90.4)

33 (71.7)

61 (82.4)

Current Smoker

34 (16.5)

7 (9.6)

13 (28.3)

12 (16.2)

Education, n (%)

0.372

0.999

Less than Bachelor's Degree

73(35.4)

21(28.0)

22(47.8)

34(45.9)

Bachelor's Degree or more

133(64.6)

52(69.3)

24(52.2)

40(54.1)


aWilcoxon Rank Sum Test for continuous and Chi-Square test for categorical variables.

bMay not sum to total due to missing data.

BMI body mass index; IQR interquartile range

Lostritto et al. BMC Public Health 2012 12:118   doi:10.1186/1471-2458-12-118

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