Table 2.

Differences in use of sun protection between participants with or without a previous melanoma, and ORs for severe sunburn associated with use of each sun protection strategy

No previous melanoma (n = 7,621)Previous melanoma (n = 557)
Severe sunburn past yearSevere sunburn past year
n (%)*%OR (99% CI)n (%)*%OR (99% CI)
Sunscreen SPF 15+
    Never/rarely2,924 (38.4)51.11115 (20.6)31.31
    Occasionally/about half of the time1,943 (25.5)56.11.15 (0.98-1.35)102 (18.3)38.11.29 (0.59-2.84)
    Regularly/always2,738 (36.0)48.70.83 (0.72-0.97)340 (61.0)22.30.50 (0.25-0.97)
Sunscreen SPF <15
    Never/rarely5,086 (66.8)49.11420 (75.4)24.11
    Occasionally/about half of the time1,574 (20.7)57.71.42 (1.21-1.66)§75 (13.5)45.22.74 (1.35-5.54)§
    Regularly/always950 (12.5)53.81.18 (0.98-1.43)62 (11.1)24.61.08 (0.47-2.51)
Clothes
    Never/rarely4,378 (57.6)54.71196 (35.3)35.41
    Occasionally/about half of the time2,105 (27.7)51.90.89 (0.77-1.02)176 (31.7)32.40.86 (0.47-1.55)
    Regularly/Always1,122 (14.8)38.20.55 (0.46-0.67)§184 (33.1)13.20.29 (0.14-0.58)§
Shade
    Never/rarely1,929 (25.3)61.1160 (10.8)44.61
    Occasionally/about half of the time3,645 (47.9)53.50.69 (0.59-0.81)214 (38.6)34.50.54 (0.24-1.24)
    Regularly/Always2,036 (26.8)38.90.37 (0.31-0.44)281 (50.6)17.70.21 (0.09-0.49)
Avoid midday sun
    Never/rarely3,695 (48.5)56.31139 (25.0)42.61
    Occasionally/about half of the time2,421 (31.8)51.10.81 (0.70-0.94)§190 (34.1)25.10.40 (0.20-0.77)§
    Regularly/always1,498 (19.7)40.30.52 (0.44-0.62)§228 (40.9)19.60.29 (0.15-0.56)§
Total use of recommended protectiona
    Infrequent or moderately protected3,321 (43.6)58.71101 (18.1)49.51
    Regularly protected2,910 (38.2)49.70.67 (0.58-0.77)§218 (39.1)28.50.38 (0.19-0.76)§
    Consistently protected1,389 (18.2)38.10.40 (0.34-0.49)§238 (42.7)16.40.17 (0.08-0.36)§
  • *Number of respondents reporting different level of use of ways to protect in the sun.

  • OR (99% CI) for having had a severe sunburn during the past year; analysis is controlled for age, gender, and skin type.

  • Significant at P < 0.01.

  • §Significant at P < 0.001.