Table 1: Basal characteristics of subjects.

Treatment Placebo value*

Age (years) 0.615
Age of onset of hair loss (years) 0.223
The Norwood-Hamilton grade0.373
Stage 28 (21.6)4 (10.3)
Stage 35 (13.5)2 (5.1)
Stage 3V11 (29.7)15 (38.5)
Stage 47 (18.9)8 (20.5)
Stage 5 6 (16.2)10 (25.6)
Family history of androgenetic alopecia27 (73.0)27 (69.2)0.719
Smoking (pack-year) 0.067
Body mass index (kg/m2) 0.734

Data are expressed as means ± SD or frequency (percent).
*Two-sample Student’s -test or chi-square test.