Patterns and Predictors of Depression Treatment among Older Adults with Parkinson’s Disease and Depression in Ambulatory Care Settings in the United States

Table 2

Predictors of depression treatment among older adults with Parkinson disease and depression.

Characteristics	Odds ratio	95% CI	Significance
Predisposing factors
Age
65–74	Ref.
≥75	1.008	0.24, 4.26	0.9909
Gender
Female	Ref.
Male	0.359	0.14, 0.93	0.0361
Race/ethnicity
White only, NH	1.044	0.18, 6.1	0.9611
Other	Ref.
Geographic region
South	0.519	0.23, 1.15	0.1025
Other	Ref.
Metro
Metro	Ref.
Nonmetro	0.584	0.11, 3.22	0.5276
Enabling factors
Physician/clinical specialty
General and family practice	Ref.
Others	2.943	0.57, 15.16	0.1903
Insurance
Govt. insurance	Ref.
Others	0.776	0.23, 2.63	0.6755
Need factors
New prescription
No	Ref.
≥1	3.019	0.99, 9.12	0.0501
Patient established
New	Ref.
Yes	5.43	0.66, 44.97	0.1134
Number of medications	1.743	1.38, 2.21	<0.0001
Number of chronic conditions	0.559	0.39, 0.79	0.0016

Note. Based on unweighted (nationally representative weighted million) ambulatory visits of older adults (age ≥ 65 years) with Parkinson’s disease and depression using NAMCS and NHAMCS 2005–2011 data; NAMCS: National Ambulatory Medical Care Survey; NHAMCS: National Hospital Ambulatory Medical Care Survey; Ref.: reference group; AOR: adjusted odds ratio; CI: confidence interval; NH: non-Hispanic; NUMMED: total number of medications; TOTCHRON: total number of chronic conditions; statistically significant at .