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Table 4 Variables associated with self-reported spray tanning among undergraduate students (n = 566)

From: Intentional tanning behaviors among undergraduates on the United States’ Gulf Coast

Variable Ever spray tanned N (%) Odds Ratio 95% CI Adjusted Odds Ratio 95% CI
Age
 18 years old (ref) 45 (8.0) 1.00   1.00  
 19 years old 97 (17.1) 1.09 0.74–1.62 1.42 0.86–2.34
 20 years old 94 (16.6) 1.22 0.82–1.81 1.52 0.81–2.83
 21 years old 94 (16.6) 1.37 0.92–2.04 1.32 0.67–2.59
 22+ years old 236 (41.7) 1.36 0.95–1.94 1.31 0.69–2.49
Year
 Freshman (ref) 102 (18.0) 1.00   1.00  
 Sophomore 110 (19.4) 1.03 0.76–1.39 0.74 0.47–1.15
 Junior 146 (25.8) 1.13 0.85–1.49 0.76 0.45–1.31
 Senior 208 (36.7) 1.55 1.18–2.02 1.14 0.66–1.99
Sex
 Male (ref) 28 (5.0) 1.00   1.00  
 Female 536 (95.0) 11.54 7.81–17.05 8.79 5.86–13.18
Race
 White (ref) 503 (88.9) 1.00   1.00  
 Black or African American 17 (3.0) 0.10 0.06–0.16 0.35 0.19–0.64
 Other 46 (8.1) 0.41 0.30–0.57 0.79 0.53–1.19
Alabama Resident
 No (ref) 116 (20.5) 1.00   1.00  
 Yes 449 (79.5) 0.98 0.78–1.24 0.97 0.74–1.28
Immediate family member with history of melanoma
 No (ref) 428 (75.6) 1.00   1.00  
 Yes 53 (9.4) 1.48 1.05–2.07 1.05 0.71–1.55
 Don’t know/Not sure 85 (15.0) 0.83 0.64–1.08 0.94 0.69–1.27
Fitzpatrick score
 Fitzpatrick Type V/VI (ref) 59 (10.4) 1.00   1.00  
 Fitzpatrick Type I/II 114 (20.1) 3.85 2.72–5.45 1.78 1.11–2.86
 Fitzpatrick Type III 217 (38.3) 3.55 2.60–4.85 1.29 0.85–1.94
 Fitzpatrick Type IV 176 (31.1) 2.36 1.72–3.24 1.18 0.79–1.75
Number of lifetime blistering sunburns
 None (ref) 122 (21.6) 1.00   1.00  
 1–2 250 (44.2) 2.18 1.72–2.77 1.14 0.86–1.52
 3–5 147 (26.0) 2.78 2.12–3.65 1.33 0.95–1.87
 6 or more 47 (8.3) 2.66 1.80–3.92 1.32 0.82–2.13
Outdoor tanner
 No (ref) 56 (9.9) 1.00   1.00  
 Yes 510 (90.1) 6.61 4.95–8.83 2.51 1.76–3.57
Ever used a tanning bed
 No (ref) 83 (14.7) 1.00   1.00  
 Yes 483 (85.3) 7.70 6.00–9.88 3.27 2.45–4.37
Intend to use tanning bed next 12 months
 No (ref) 343 (60.6) 1.00   1.00  
 Yes 223 (39.4) 5.41 4.35–6.74 2.04 1.57–2.65