TABLE 4.

Multivariate multinomial logistic regression model examining independent contributions of severity of complications of therapy (MDS‐UPDRS‐IV) to anxiety disorder NOS, adjusted for sex, age, global cognition, and depression severity (n = 156)

Variable	Anxiety NOS vs. no anxiety OR (95% CI)	P	Anxiety NOS vs. DSM anxiety OR (95% CI)	P	DSM anxiety vs. no anxiety OR (95% CI)	P
Sex a	2.15 (0.76–6.29)	0.163	0.94 (0.28–3.11)	0.920	2.28 (0.77–6.79)	0.137
Age	1.01 (0.95–1.08)	0.737	0.97 (0.90–1.04)	0.334	1.05 (0.98–1.20)	0.192
SMMSE	0.90 (0.64–1.26)	0.534	0.49 (0.30–0.80)	0.005**	1.83 (1.13–2.97)	0.013*
HAM‐D	1.22 (1.08–1.38)	0.001**	0.79 (0.70–0.90)	<0.001***	1.54 (1.34–1.78)	<0.001***
MDS‐UPDRS‐IV	1.33 (1.08–1.62)	0.007**	1.41 (1.14–1.74)	0.001**	0.94 (0.74–1.20)	0.609

A multinomial logistic regression model was constructed to compare anxiety disorder NOS, DSM‐IV anxiety disorders, and no anxiety groups. χ²(10, n = 156) = 101.99, P < 0.001; R ² = 0.48 (Cox‐Snell); 0.56 (Nagelkerke).

^aMale was the reference category.

^* P < 0.05.

^** P < 0.01.

^*** P < 0.001.

SMMSE, Standardized Mini Mental State Examination; HAM‐D, Hamilton Depression Rating Scale; PDQ‐8, Parkinson's Disease Questionnaire; MDS‐UPDRS, Movement Disorder Society Unified Parkinson's Disease Rating Scale; LEDD, levodopa equivalent daily dose.