Table 1.

Sample characteristics overall and by indoor tanning (IT) dependence

Sample N = 389+ IT Dependence N = 88− IT Dependence N = 301P
Demographics
Age, mean (SD), range 18–30, y23.3 (3.0)22.9 (2.8)23.4 (3.1)0.113
≥College education244 (62.7)47 (53.4)197 (65.5)0.040
<College education145 (37.3)41 (46.6)104 (34.5)
Income ≥ $50,000198 (50.9)49 (55.7)149 (49.5)0.308
Income < $50,000 or not reported191 (49.1)39 (44.3)152 (50.5)
Season of study participation
  Spring102 (26.2)21 (23.9)81 (26.9)
  Summer112 (28.8)25 (28.4)87 (28.9)0.929
  Fall114 (29.3)27 (30.7)87 (28.9)
  Winter61 (15.7)15 (17.1)46 (15.3)
Skin cancer risk factors
Always/usually burn93 (24.0)20 (22.7)73 (24.3)0.756
Rarely/never burn296 (76.0)68 (77.3)227 (75.7)
Red/blonde hair145 (37.3)31 (35.2)114 (37.9)0.652
Brown/black hair244 (62.7)57 (64.8)187 (62.1)
FDR w/melanoma61 (15.7)15 (17.1)46 (15.3)0.689
No FDR w/melanoma328 (84.3)73 (82.9)255 (84.7)
Intentional outdoor tanning, mean (SD), range 1–53.4 (0.83)3.5 (0.84)3.3 (0.83)0.028
Past 12-month sunburns, mean (SD), range 0–52.6 (1.3)2.8 (1.3)2.5 (1.3)0.103
IT Behavior
Age IT initiation, mean (SD), range 8–28, y17.1 (2.6)16.2 (2.2)17.4 (2.6)<0.001
Past year IT frequency
  1 or 2 times74 (19.0)8 (9.1)66 (21.9)
  3–9 times145 (37.3)27 (30.7)118 (39.2)<0.001
  10–19 times75 (19.3)16 (18.2)59 (19.6)
  ≥20 times95 (24.2)37 (42.0)58 (19.3)
Opioid-like IT reactions, mean (SD), range 1–53.5 (0.93)3.8 (1.0)3.4 (.89)0.002
IT Beliefs
Benefits of IT, mean (SD), range 1–52.8 (0.66)3.0 (0.77)2.7 (0.61)<0.001
Attitudes, mean (SD), range 1–53.9 (0.59)4.2 (0.49)3.8 (0.59)<0.001
Perceived susceptibility risks, mean (SD), range 1–53.2 (0.69)3.4 (0.70)3.1 (0.67)<0.001
Perceived severity risks, mean (SD), range 1–53.8 (0.70)3.7 (0.72)3.8 (0.70)0.092
Alcohol & tobacco
Current cigarette smoker73 (18.8)15 (17.0)58 (19.3)0.638
Nonsmoker316 (81.2)73 (83.0)243 (80.7)
Past 30-day binge drinking278 (71.5)59 (67.0)219 (72.8)0.297
No past 30-day binge drinking111 (28.5)29 (33.0)82 (27.2)
Psychologic risk factors
Sensation seeking, mean (SD), range 1–42.7 (0.67)2.8 (0.67)2.6 (0.67)0.109
Self-esteem, mean (SD), range 0–322.3 (5.5)20.3 (6.0)22.9 (5.3)<0.001
Appearance orientation, mean (SD), range 1–53.8 (0.63)4.0 (0.60)3.7 (0.62)<0.001
Depressive symptoms
Screen + depressive symptoms185 (47.6)66 (75.0)119 (39.5)<0.001
Screen – depressive symptoms204 (52.4)22 (25.0)182 (60.5)
  • NOTE: Cells display no. (%) unless noted in the row label. Some variables do not sum to total sample size due to sporadic missing data (<1% for any given variable).

  • Abbreviation: FDR, first-degree relative.