Parkinson’s Disease

Research Article

Determinants of Dyadic Relationship and Its Psychosocial Impact in Patients with Parkinson’s Disease and Their Spouses

Table 5

Multiple linear regression analysis to find predictors of the Parkinson’s Disease Summary Index (PDQ8SI), caregiver burden scale, PD-patient mutuality, and PD-partner mutuality. dyads.


	Unstandardized coefficients	Standardized coefficients	value	95% CI	Tolerance/VIF

Dependent variable = PD-patient MS Adj = .316
Predictors

PD-partner MS	.356	.419	.002	.143–.569	.882/1.134
UPDRS III	−.023	−.205	.113	−.052–.006	.852/1.174
NMS	−.025	−.176	.169	−.061–.011	.866/1.155
PD-partner gender	.434	.332	.017	.080–.788	.759/1.318
Education	.144	.110	.366	−.173–.461	.938/1.066
PD-partner age	−.001	−.016	.902	−.020–.018	.768/1.302

Dependent variable = PDQ8SI Adj = .497
Predictors

PD-patient MS	−9.655	−.433	.001	−14.862–−4.449	.752/1.330
UPDRS III	.090	.036	.749	−.475–.655	.814/1.228
NMS	1.592	.498	<.001	.871–2.313	.803/1.245
IQCODE	.034	.032	.762	−.190–.257	.911/1.097
PD-partner gender	−4.329	−.148	.234	−11.565–2.907	.666/1.500
Education	−3.353	−.115	.275	−9.471–2.766	.924/1.083
PD-partner age	−.190	−.121	.293	−.551–.171	.778/1.285

Dependent variable = PD-partner MS Adj = .289
Predictors

PD-patient MS	.542	.461	.002	.216–.869	.752/1.330
UPDRS III	−.013	−.101	.450	−.049–.022	.814/1.228
NMS	.011	.066	.621	−.034–.056	.803/1.245
IQCODE	−.017	−.314	.016	−.031–−.003	.911/1.097
PD-partner gender	.039	.025	.865	−.415–.492	.666/1.500
Education	−.117	−.076	.543	−.500–.267	.924/1.083
PD-partner age	−.009	−.104	.446	−.031–.014	.778/1.285

Dependent variable = CBS Adj = .527
Predictors

PD-partner MS	−11.541	−.559	<.001	−16.149–−6.933	.771/1.296
UPDRS III	.447	.163	.129	−.136–1.030	.852/1.174
NMS	.282	.081	.449	−.462–1.026	.839/1.191
IQCODE	.251	.219	.050	.000–.503	.802/1.247
PD-partner gender	3.023	.095	.400	−4.143–10.188	.756/1.322
Education	1.178	.037	.713	−5.250–7.607	.931/1.074
PD-partner age	−.253	−.148	.191	−.636–.131	.768/1.302

Notes: PD: Parkinson’s disease, PDQ8SI: the Parkinson’s Disease Questionnaire Summery Index, MS: mutuality scale, CBS: caregiver burden scale, NMSQuest: the Non-motor Symptom Questionnaire, UPDRS III: the Unified Parkinson’s Disease Rating Scale-Part III, and IQCODE: Informant Questionnaire on Cognitive Decline in the Elderly. Italics: significant predictors.
PD-partner gender = 0 = female, 1 = male.
Education = 0 = either elementary, secondary, or only one with university education and 1 = both with university education.