. 2023 Jun 19;67(6):e000640. doi: 10.20945/2359-3997000000640

Table 3. Adjusted logistic regression between psoriasis and thyroid function variables, according to sex.

		Male	Female
TSH
	lnTSH, per unit (mIU/L)	1.27 (0.93-1.75)	1.23 (0.89-1.70)
	1^st quintile	0.62 (0.34-1.12)	0.73 (0.41-1.31)
	2^nd quintile	0.83 (0.49-1.40)	0.88 (0.51-1.54)
	3^rd quintile	Ref	Ref
	4^th quintile	1.04 (0.63-1.70)	1.07 (0.63-1.82)
	5^th quintile	0.83 (0.50-1.39)	0.99 (0.58-1.71)
FT4
	lnFT4, per unit (ng/dL)	0.84 (0.25-2.79)	1.08 (0.30-3.88)
	1^st quintile	0.78 (0.44-1.37)	2.01 (1.05-3.84)^*
	2^nd quintile	1.03 (0.62-1.71)	1.89 (1.00-3.60)
	3^rd quintile	Ref	Ref
	4^th quintile	0.60 (0.33-1.06)	1.82 (0.95-3.51)
	5^th quintile	0.86 (0.52-1.43)	2.13 (1.12-4.05)^*
FT3
	lnFT3, per unit (ng/dL)	0.28 (0.06-1.20)	1.14 (0.27-4.83)
	1^st quintile	2.25 (1.25-4.04)^*	1.38 (0.81-2.35)
	2^nd quintile	1.82 (1.05-3.17)^*	1.18 (0.67-2.06)
	3^rd quintile	Ref	Ref
	4^th quintile	1.10 (0.61-1.98)	0.89 (0.47-1.70)
	5^th quintile	1.39 (0.82-2.37)	1.67 (0.96-2.90)
TPOAb
	Negative	Ref	Ref
	Positive (≥34 IU/mL)	1.26 (0.65-2.43)	0.43 (0.19-0.98)^*
Subclinical hypothyroidism
	No	Ref	Ref
	Yes	1.18 (0.72-1.94)	1.05 (0.60-1.85)

p < 0.05.

Ref: reference category; TSH: thyroid-stimulating hormone; FT4: free thyroxine; FT3: free triiodothyronine; TPOAb: thyroid peroxidase antibodies. Data presented refers to Model 2 adjusted for age, race/ethnicity, education, and smoking.