Evaluation of interventions to improve solar protection in primary schools.

Abstract

Childhood and adolescence are critical periods in the etiology of subsequent melanoma and nonmelanocytic skin cancers. The aims of the study were (a) to develop a valid measure of solar protection in 9 to 11-year-old school students, (b) to evaluate the differential effectiveness of two interventions aimed at changing solar protection in this age group, and (c) to identify the predictors of use of a high level of solar protection. A Solar Protection Behavior Diary was developed and validated during a pilot, after which 11 schools were randomly allocated to one of three groups: intensive intervention (247 students), standard intervention (180 students), or control (185 students), with students in years 5 and 6 participating in the study. Students completed the validated diary (for 5 days) and a knowledge and attitudes questionnaire at pretest and at two posttest periods (4 weeks and 8 months after pretest). Results indicated that students in the intensive intervention group were significantly more likely to have used a high level of protection at both posttest periods compared to the control and standard intervention groups. There was no difference in the protection level of the control and standard intervention groups at either posttest, indicating that this minimal intervention was not effective in changing the solar protection behavior of the students. Students with a high level of solar protection at pretest were also significantly more likely to have a high level of protection at both posttest periods, and those with a greater number of opportunities to protect were less likely to protect at the second posttest.