Table 1. Case study (Patients with chronic/relapsing AA with > 25% scalp hair area affected).

Cases examined	156 (not obese and not in steroid therapy since one year at least)
Gender	45 M, 111 F
Mean age (years)	37.8 (Men 32.2, Women 40.1)
Duration of disorder	49 mo (6m-20y)
Positive family history	42%
Clinical forms	49 (31,5%) AA multilocularis, 69 (44%) Ophyasis, 38 (24,5%) AT-AU
Activity of the disease*	57% active, 43% in stationary/remission phase
Observation period	October–March 2010–2012
Controls	148 (18 M, 130 F)
Mean age (years)	34.5

* Evaluated by perilesional Trichogram (AT/AU excluded)