18 Table 5. Prevalence of Indoor Tanninga Among Adults, 2010, 2013, and 2015 Characteristic 2010, % 2013, % 2015, % Pvalueb Total 5.5 4.2 3.5 <.001 Sex Male 2.2 1.7 1.6 .004 Female 5.9 6.5 5.2 <.001 Age, y 18–29 11.3 8.6 6.0 <.001 30–39 5.9 5.5 4.4 .004 40–49 5.9 4.3 3.8 <.001 ≥50 2.1 1.5 1.8 .287 Race/ethnicity Non-Hispanic white 7.4 11.5 3.1 <.001 Black 0.3c 0.2c 0.2c .507 Hispanic 1.8 1.7 1.2 .063 Other 2.0 1.2 0.8 .033 Most common Users Non-Hispanic white females by age, yrs 18–29 31.8 21.6 20.4 .011 22-25 29.6 27.0 13.9 <.001 26-29 22.1 17.3 13.8 .009 Source: National Health Interview Survey; table adapted from Guy GP, et al.20 a Indoor tanning defined as using an indoor tanning device (such as a sunlamp, sunbed, or tanning booth) one or more times during the 12 months before the survey. It does not include getting a spray-on tan. Estimates are based on weighted data. Sample sizes are unweighted and may not add to the total because of missing data. Percentages are based on weighted population estimates. Percentage of US adult who experienced at least 1 sunburn in the 12 months prior to the survey. b P value based on linear contrast for trend among the estimates over the 3 years. P < .05 is defined as statistically significant. c Estimates based on fewer than 30 observations or with a relative standard error >.30 are considered unreliable by the standards of the National Center for Health Statistics.
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