[Prevention of skin cancer programs: analysis of the impact of randomized trials].
BACKGROUND
Exposure to ultraviolet sun rays is an important risk factor for the development of skin cancer. Confronted with the increase in the incidence of severe forms (melanoma), primary prevention plays a major part, together with the development of campaigns promoting individual and collective protection against ultraviolet rays.


OBJECTIVE
The aim of this trial was to identify the factors of success or failure of skin cancer prevention programs and to analyze their impact.


METHODS
Articles published in the literature from 1982 to 2002 were selected from the Medline databank using the following key words: "skin cancer, melanoma, evaluation, prevention and education, review, program, campaign and randomized controlled trial". For the final analysis, only the randomized trials with control group were retained.


RESULTS
All the prevention programs increased short, median or long term knowledge. Conversely, the trials were sometimes contradicting with regard to the change in attitude. No methodologically correct trial clearly reported any change in behavior, the majority of them only collected intent behavior.


CONCLUSIONS
Despite the methodological weaknesses of most of the trials published, this review of the literature underlined certain points. The most efficient programs appear to be those targeting children, the training sessions of which are long and/or repeated, with active individual participation. Programs based on the deleterious consequences of sun exposure on physical appearance appeared to produce better results in terms of any change in attitude and intent behavior.
Stoebner-Delbarre
A
A
Epidaure, Département de prévention, CRLC Val d'Aurelle, Montpellier. a.stoebner@valdorel.fnclcc.fr
Defez
C
C
Borrel
E
E
Sancho-Garnier
H
H
Guillot
B
B
D001294:Attitude to Health; D002648:Child; D015438:Health Behavior; D006293:Health Promotion; D006801:Humans; D011315:Preventive Medicine; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D012878:Skin Neoplasms / Q000517:prevention & control*; D016896:Treatment Outcome; D014466:Ultraviolet Rays / Q000009:adverse effects*