Table 4

Comparison of indicators to the RTS-score

Indicators for sun sensitivity
Spearman correlation rs
Correct classification (%)

1: Untanned skin color
0,66
59
2: Freckles
0,54
43
3: Sensitivity to sun exposure of the face
0,65
59
4: Time until sunburn
0,74
61
5: Frequency of sunburn
0,77
53
6. Intensity of sunburn
0,61
56
7: Pigmentation after single exposure
0,68
56
8: Pigmentation after repeated exposure
0,72
68
9: Natural hair color
0,58
56
10: Eye color
0,46
39
Uter-classification
-0,45
38
Fitzpatrick-classification (single exposure)*
0,62
68
Fitzpatrick-classification (repeated exposure)**
0,65
75
Guinot-Score (SSSE)
-0,88
61

* n = 602, ** n = 617

The first ten indicators are the items of the RTS-questionnaire. The association of the indicators with the RTS-score is demonstrated using the Spearman rank correlation. The last column shows the correct classification of the indicator (four categories) compared to the RTS-score, which is categorized in four groups.

Tacke et al. BMC Dermatology 2008 8:4   doi:10.1186/1471-5945-8-4