Table 2.

Unadjusted differences in sunscreen use and sunburns from baseline to follow-up and across conditions among Operating Engineers (N = 357)

Education onlyEducation and textsEducation and mailed sunscreenEducation, texts and mailed sunscreen
N (%)N (%)N (%)N (%)
91 (25.5)86 (24.1)87 (24.4)93 (26.1)
Mean (SD)Mean (SD)Mean (SD)Mean (SD)P value comparing differences among groups
Sunscreen use
 Baseline2.0 (1.1)2.2 (1.1)2.1 (1.0)2.0 (0.9)0.69
 Follow-up2.2 (1.2)2.4 (1.1)2.7 (1.2)2.8 (1.0)<0.001
 Mean difference0.2 (1.0)0.2 (1.0)0.6 (1.0)0.8 (1.0)<0.001
P value comparing baseline to follow-up0.020.07<0.001<0.001
Mean (SD)Mean (SD)Mean (SD)Mean (SD)P
Number of sunburns
 Baseline1.9 (1.4)1.7 (1.4)1.8 (1.3)1.9 (1.4)0.64
 Follow-up1.4 (1.2)1.2 (1.3)1.2 (1.2)1.2 (1.2)0.50
 Mean difference−0.5 (1.4)−0.5 (1.0)−0.6 (1.3)−0.7 (1.1)0.50
P value comparing baseline to follow-up<0.001<0.001<0.001<0.001