Table 1.

Demographic data of the patients with AA enrolled in our study

Alopecia areata	Data
Number of Patient	162,499
Cancer case number (%)	2099 (1.29)
Age (median)	30.90 (22.11–42.25)
Age (mean ± SD)	32.29 ± 14.84
<50 (%)	142,229 (87.53)
≥50 (%)	20,270 (12.47)
Gender
Male	77,951 (47.97)
Female	84,548 (52.03)
Follow‐up year (Mean ± SD)	6.76 ± 3.64
Follow‐up year (Median)	6.52 (3.55–9.87)