Table 4.

Intercept and parameter estimates for PD from separate Ordinary Least Square regressions on logged healthcare expenditures (2009 Dollars). Medical Expenditure Panel Survey, 2000–2009.

	Model 1			Model 2			Model 3
	Beta	SE	Sig	Beta	SE	Sig	Beta	SE	Sig
Total
Intercept	8.343	0.011	***	8.680	0.058	***	7.699	0.048	***
PD	0.745	0.070	***	0.741	0.071	***	0.611	0.054	***
No PD
Inpatient
Intercept	1.644	0.021	***	2.781	0.124	***	1.611	0.117	***
PD	0.747	0.244	**	0.700	0.248	**	0.533	0.223	*
No PD
Emergency room
Intercept	1.107	0.016	***	1.599	0.085	***	0.961	0.084	***
PD	0.770	0.159	***	0.763	0.156	***	0.652	0.150	***
No PD
Outpatient
Intercept	6.736	0.016	***	6.877	0.085	***	5.806	0.079	***
PD	0.254	0.135		0.248	0.131		0.146	0.120
No PD
Prescription drugs
Intercept	6.659	0.018	***	6.961	0.088	***	5.389	0.081	***
PD	1.061	0.071	***	1.079	0.073	***	0.870	0.080	***
No PD
Home healthcare
Intercept	0.688	0.018	***	1.231	0.103	***	0.685	0.097	***
PD	1.683	0.231	***	1.708	0.235	***	1.567	0.227	***
No PD
Others
Intercept	3.701	0.032	***	3.360	0.113	***	2.937	0.116	***
PD	0.228	0.239		0.254	0.236		0.153	0.231
No PD

Note: Based on 350 individuals with PD and 1050 individuals without PD, aged 65 years or older and were alive during particular calendar year. Asterisks represent significant group differences by the presence of PD using t-tests.

Model 1 included Parkinson’s disease as the independent variable.

Model 2 included Parkinson’s disease, gender, race, marital status, metro status, education, region, and MEPS year as independent variables.

Model 3 included Parkinson’s disease, gender, race, marital status, metro status, education, region, chronic disease number, depression-anxiety, and MEPS year as independent variables.

SE: Standard Error.

^***p < 0.001;

^**0.001 ≤ p < 0.01;

^*0.01 ≤ p < 0.05.