Table 3.

The onset time of hair loss symptoms in correlation with the family history

Onset	Family history
	Number	Positive	Negative
12–25	23 (20.7%)	17 (73.9%)	6 (26.1%)
26–35	18 (16.2%)	9 (50.0%)	9 (50.0%)
36–45	23 (20.7%)	16 (69.6%)	7 (30.4%)
46–55	24 (21.6%)	14 (58.3%)	10 (41.7%)
56–65	14 (12.6%)	8 (57.1%)	6 (42.9%)
66–80	9 (8.1%)	5 (55.6%)	4 (44.4%)