Correlates of Health-Related Quality of Life Among Chinese Older Adults with Mild Cognitive Impairment

Figures & data

Table 1 Characteristics of the Participants (N=204)

Characteristics	Values
Age	75.97±6.69
Gender
Male	44 (21.6%)
Female	160 (78.4%)
Marital status
Married	142 (73.8%)
Single	62 (26.1%)
Education level
Below middle school	88 (43.2%)
Middle school and above	116 (56.8%)
Residence
Living alone	51 (21.5%)
Living with others	153 (78.5%)
Monthly income^a
Less than 4000 CNY	140 (68.6%)
Above 4000 CNY	64 (31.4%)
Cognitive function (MoCA)	22.47±1.94
Functional status (FAQ)
0	136 (66.7%)
1–5	68 (33.3%)
Level of depressive symptoms (GDS)	5.68±3.87
Presence of clinical depressive symptoms (GDS≥10)	52 (25.49%)
Sleep quality (PSQI)	8.92±4.13
Presence of poor sleepers (PSQI≥6)	152 (74.5%)

Note: ^a1 US Dollar=6.9 CNY.

Abbreviations: MCI, mild cognitive impairment; CNY, Chinese yuan; GDS, geriatric depression scale; MoCA, montreal cognitive assessment; FAQ, functional activities questionnaire; PSQI, pittsburgh sleep quality index.

Table 2 Bivariate Correlations Between Potential Correlates and HRQoL in MCI (N=204)

		1	2	3	4	5	6	7	8
1	Age	1.00
2	Education	−0.117	1.00
3	Income	0.144*	0.402**	1.00
4	MoCA	−0.217**	0.338**	0.127	1.00
5	FAQ	0.114	−0.037	0.058	−0.114	1.00
6	GDS	0.038	−0.207**	−0.069	−0.099	0.480**	1.00
7	PSQI	0.040	−0.020	−0.070	−0.207**	0.279**	0.326**	1.00
8	QoL-AD	0.023	0.132	−0.051	0.139*	−0.417**	−0.651**	−0.345**	1.00

Note: *P<0.05. **P<0.001.

Abbreviations: MoCA, montreal cognitive assessment; FAQ, functional activities questionnaire; GDS, geriatric depression scale; PSQI, Pittsburgh sleep quality index; QoL-AD, quality of life - Alzheimer’s disease.

Table 3 Results of the Hierarchy Regression Analysis (N=204)

Variables	Step 1		Step 2		Step 3		Step 4
	Beta	p	Beta	p	Beta	p	Beta	p
Age	−0.080	0.300	−0.131	0.067	−0.121	0.040	−0.131	0.024
Being female	−0.004	0.956	−0.037	0.609	0.040	0.505	0.081	0.178
Being single	−0.077	0.322	−0.067	0.350	−0.082	0.161	−0.101	0.083
Higher education	0.182	0.025	0.131	0.085	0.033	0.603	0.062	0.326
Living alone	−0.032	0.662	0.007	0.914	−0.059	0.297	−0.076	0.170
Higher income	0.144	0.074	−0.127	0.084	0.120	0.046	0.128	0.032
Cognitive function (MoCA)			0.071	0.312	0.087	0.130	0.055	0.345
Functional status (FAQ)			−0.416	<0.001	−0.114	0.066	−0.082	0.189
Depressive symptoms (GDS)					−0.599	<0.001	−0.564	<0.001
Sleep quality (PSQI)							−0.169	0.004
R^2	4%		21.6%		46.9%		49.1%
Change in R^2			17.6% (p<0.001)		25.3% (p<0.001)		3.8% (p=0.004)

Abbreviations: Beta, standardized coefficient; MoCA, montreal cognitive assessment; FAQ, functional activities questionnaire; GDS, geriatric depression scale; PSQI, Pittsburgh sleep quality index.