Table 3.

Ordinal logistic regression analysis of factors that associated with the efficacy assessments with not effective as a reference

Variables	Explanation of variables	Ordinal odds ratio (95% CI)	P value
Age, years	18–30	1.00 (reference)
	31–40	1.02 (0.74,1.42)	0.45
	41–50	1.08 (0.69,1.69)	0.37
	> 50	0.75 (0.32,1.76)	0.25
Gender	Female	1.00 (reference)	0.02
	Male	1.35 (1.01, 1.79)
Marital status	Single	1.00 (reference)	0.18
	Married	1.16 (0.84,1.60)
Family history with AGA	No	1.00 (reference)	0.26
	Yes	1.09 (0.84,1.41)
Use period, times	< 90 (half year)	1 (reference)
	90–180 (half year to 1 year)	1.20 (0.86,1.67)	0.14
	180–360 (> 1 year)	1.40 (1.11,1.96)	0.03
Treatment regime	LLLT only	1.00 (reference)
	LLLT and minoxidil	1.17 (0.89, 1.54)	0.14
	LLLT and finasteride	1.08 (0.55, 2.12)	0.42
Scalp conditions
Oily scalp	No	1.00 (reference)	0.32
	Yes	0.92 (0.64,1.32)
Dandruff	No	1.00 (reference)	0.04
	Yes	1.34 (1.01,1.87)
Rash	No	1.00 (reference)	0.01
	Yes	1.47 (1.04,2.07)
Itchy scalp	No	1.00 (reference)	0.003
	Yes	1.51 (1.12,2.03)

Ordinal logistic regression analysis; CI, confidence interval