Table 4.

Statistical differences between qualitative caregivers' variables and QoL.

Variable	N	Mean diff. overall QoL_change	SD overall QoL_change	Overall QoL p value	Physical QoL p value	Psycho. QoL p value	Social QoL p value	Environ. QoL p value
Age	37			0.025∗	0.566	0.008∗	0.270	0270
≤64	28	1.08	15.84
>65	9	8.33	6.48
Gender	37			0.479	0.148	0.094	0.0957	0.871
Male	8	7.53	13.60
Female	29	1.54	14.57
Level education	37			0.760	0.119	0.153	0.907	0.999
Primary	7	6.14	8.83
Secondary	17	4.39	14.54
University	13	-0.94	16.62
Marital status	37			0.092	0.440	0.633	0.285	0.225
Married	27	4.06	11.63
Single	4	-14.02	26.11
Divorced	6	8.70	10.08
Offspring number	37			0.415	0.358	0.255	0.684	0.832
None	8	-4.18	21.79
One	7	8.29	13.50
Two	16	4.66	11.57
Three	6	0.29	7.67
Relation/person with Alzheimer's	37			0.045∗	0.132	0.042∗	0.918	0.292
Offspring	29	2.98	15.69
Spouse	5	7.80	4.78
Other	3	-6.75	6.24