between 30 and 87 with a mean age of 64 years. The Swedish
student sample yielded 132 completed questionnaires. Of these,
ten were excluded due to lack of contact details, incomplete
questionnaires or lack of consent. Of the remaining 122 subjects 69
(56.6%) were female and 53 (43.4%) were male. The ages ranged
between 19 and 41 with a mean age of 23 years.
3.3. Validity of SEPI
3.3.1. SEPI part I
The correlation between each separate question in SEPI part I
and the corresponding questions in the Sun protective behaviour
questionnaire is shown in Table 1. Spearman’s Rho was calculated
in all four subpopulations (student population in Australia/
Sweden, PHC population in Australia/Sweden) as well as in the
total population in each country (Australia, Sweden). Correlation
coefficients showed satisfactory correlation for most of the
questions, with the exception of the SEPI question concerning
sun exposure on vacations, for which there was a negative
correlation with sunscreen use during vacation. The highest
coefficient values were seen forIntentional tanning, Occasions with
sunburnand Hat or cap for sun protection.
3.3.2. SEPI part II
In Table 2, the correlation between the questions in SEPI part II
and the related questions in the Sun protective behaviour
questionnaire, is displayed in the same manner as described