Psychological stress impact neurotrophic factor levels in patients with androgenetic alopecia and correlated with disease progression

Table 4 Androgenetic alopecia progression scores in non-stress and stress groups, n (%)

Subgroup	Non-stress group (n = 30)	Stress group (n = 90)	χ2	P value
Before treatment			12.801	0.002
< 3/I	18 (60)	22 (24.44)
3–5/II	8 (26.67)	45 (50)
6 or 7/III	4 (13.33)	23 (25.56)
After 12 months of treatment			5.106	0.078
< 3/I	23 (76.67)	48 (53.33)
3–5/II	4 (13.33)	22 (24.44)
6 or 7/III	3 (10)	20 (22.22)