Table 2.

Distribution of participants and median ITA scores by response categories

Response itemFrequency (%)Median ITA scoreIQR
Sex
    Male114 (39.5)42.730.1, 50.6
    Female175 (60.5)48.439.5, 54.6
Natural untanned skin color at end of winter (first questionnaire)
    Very fair25 (8.7)57.849.9, 61.6
    Fair105 (36.3)53.247.3, 56.6
    Medium90 (31.1)45.439.5, 49.9
    Olive35 (12.1)33.927.4, 41.1
    Dark26 (9.0)15.76.6, 21.1
    Very dark3 (1.0)8.8−23.6, 10.1
    Black4 (1.4)−22.7−35.5, −5.74
    Missing1 (0.4)−17.3
Skin response to unprotected exposure to midday summer sun for 30 min (first questionnaire)
    Just burn and not tan afterwards48 (16.6)57.753.9, 61.6
    Burn first then tan afterwards133 (46.0)48.242.6, 53.6
    Not burn at all, just tan106 (36.7)36.119.4, 43.3
    Missing2 (0.7)
Ethnicity(percentages add up to more than 100)
    European185 (64.0)50.744.4, 56.2
    Māori12 (4.2)42.834.2, 48.6
    Pacific7 (2.4)22.44.6, 26.9
    Asian89 (30.8)33.118.1, 43.0
    Middle Eastern/Latin American/African6 (2.1)−18.4−32.1, 32.3
Used a sun-bed or spray-on tan lotion in past 7 d
    No280 (96.9)46.333.5, 54.1
    Yes9 (3.1)43.543.5, 50.2

Abbreviation: IQR, interquartile range.