Table 4.

Results of generalized linear regression model of patient EQ-5D proxy index values as a function of LTCI & covariates (n = 300)

Characteristic	Reference Category	Variables	B	95% LCL	95% UCL	P-Value
(Intercept)			0.761	0.629	0.894	< 0.001
Patient characteristics
AD dementia severity	Low severity	High severity	−0.340	− 0.414	− 0.267	< 0.001
		Medium severity	− 0.072	− 0.134	− 0.01	0.022
Sex	Female	Male	−0.030	− 0.078	0.018	0.220
Age	< 80 years	90+ years	0.001	− 0.067	0.069	0.974
		80–89 years	0.010	−0.045	0.064	0.728
Caregiver characteristics
Sex	Female	Male	−0.041	− 0.085	0.002	0.064
Age X employment status	18–49 years and unemployed	65+ years and unemployed	0.026	−0.096	0.149	0.677
		50–64 years and unemployed	− 0.106	−0.202	− 0.009	0.032
	Unemployed and 18–49 years	Employed and 18–49 years	− 0.076	− 0.167	0.014	0.098
	65+ vs. 18–49 years and unemployed	65+ vs. 18–49 years and employed	0.026	−0.139	0.19	0.758
	50–64 vs. 18–49 years and unemployed	50–64 vs. 18–49 years and employed	0.144	0.038	0.249	0.008
% average daily care for which caregiver is responsible			0.000	0.000	0.001	0.378
% average daily care from visiting nurse/home-helper			−0.002	−0.003	0.000	0.008
Total average hours of care required per day			−0.042	−0.061	− 0.024	< 0.001
Years providing care for AD dementia patient	< 2 years	2 to < 4 years	0.022	− 0.061	0.105	0.603
		4 to < 6 years	0.050	−0.037	0.137	0.258
		6+ years	0.025	−0.062	0.112	0.575
		Can’t recall	0.084	−0.018	0.186	0.108
Marital status	Single	Married / living with partner	0.011	−0.037	0.059	0.660
		Divorced / separated / widowed	−0.068	−0.145	0.01	0.087
Relationship with patient	In-law, extended, not related	Offspring of patient (caregiver ≤20 years)	0.021	−0.031	0.074	0.420
		Spouse / sibling / parent of patient (caregiver > 20 years)	−0.048	−0.166	0.07	0.424
(Scale)			0.028	0.024	0.033

Note. Presented are normal generalized linear model results. AD Alzheimer’s disease, B unstandardized beta, LCL lower confidence limit, UCL upper confidence limit