Table 4 Test-retest change in knowledge related to sun exposure

1: Sun protection creams prevent the aging of the skin caused by the sun’s rays

226

174

77.0

185

81.9

0.20

2: The sun is the main cause of skin cancer

226

213

94.2

219

96.9

0.18

3: The sun causes skin blemishes

225

219

97.3

221

98.2

0.73

4: If I use sunblock cream I can sunbathe without risk

227

156

68.7

209

92.1

<0.001

5: Avoiding the sun at the hours of peak intensity (12.00-5.00 pm) is the most effective way to protect the skin from the sun

225

197

87.6

205

91.1

0.20

6: Avoiding sun exposure at an early age (under 18) decreases the risk of skin cancer by 80%

225

116

51.6

158

70.2

<0.001

7: Once my skin is brown, I don’t need to continue using sunscreen

227

199

87.7

220

96.9

<0.001