Figure 3.

The ages at the initial and recurrent episodes of herpes zoster (HZ), and the interval between episodes. The figures show the profile of the ages and gender of initial and recurrent HZ and their interval. The difference in the peak age between male and female are noted, and the median and mean intervals were 10 and 14 years, respectively. (A) The ages at the initial (solid line) and recurrent (dashed line) HZ episodes of the total, male, and female patients are expressed as black, blue, and red lines. The episode before the recurrent episode was included as the initial episode in patients with 2 and 3 recurrences. The difference in the peak age between male and female are noted. (B) The cases are shown according to the sex-dependent interval length between the initial (prior) and recurrent episodes in the total, male, and female patients as black, blue, and red lines, respectively. (C) The intervals of the number of patients who experienced recurrences in different dermatomes and in the same dermatome are shown by the black solid line and black dashed line, respectively.