We have determined skin phototype by a self-reporting questionnaire pr
oposed by Fitzpatrick in 128 Korean medical students. We also measured
the minimal erythema dose (MED), minimal melanogenic dose and investi
gated their relationship to phototype. A questionnaire of skin phototy
pes revealed that 13.3% of the students are skin phototypes I and II.
Based on MEDs, we demonstrated that 14.8% of the students fall into th
e UV-sensitive group as defined by an MED of less than 40 mJ/Cm-2, whi
ch is the upper range of MED of phototypes I and II in a white populat
ion. The skin phototypes did not show a positive correlation to MEDs a
nd only 2.3% of students classified as skin phototypes I and II showed
an MED below 40 mJ/cm(2). This study indicates that the skin phototyp
ing method proposed by Fitzpatrick does not reliably predict UV-sensit
ive individuals within the Korean population.