Table 2.

Baseline demographic and clinical characteristics between the 2 groups (n = 104).

Variable	Intervention group	Control group	t/χ2/Z	P
Age, Mean (SD)	73.86 (4.252)	72.66 (6.288)	1.138∗	.258
Gender (n,%)			0.026†	.872
Male	21 (41.2)	21 (39.6)
Female	30 (58.8)	32 (60.4)
Marital status (n, %)			2.394†	.122
Married	46 (90.2)	42 (79.2)
Widowed /Divorce	5 (9.8)	11 (20.8)
Educational level (n, %)			−0.439‡	.660
Primary school or blow	17 (33.3)	17 (32.1)
Junior high school	17 (33.3)	24 (45.3)
high school	12 (23.5)	6 (11.3)
College or above	5 (9.9)	6 (11.3)
Residential pattern (n, %)			—	.898
Living alone	5 (9.8)	5 (9.4)
With a spouse	36 (70.6)	39 (73.6)
With children	10 (19.6)	8 (15.1)
Others	0	1 (1.9)
Monthly income RMB (n, %)			−0.533‡	.594
<1000	7 (13.7)	4 (7.5)
1000∼	13 (25.5)	11 (20.8)
2000∼	24 (47.1)	35 (66.0)
3000∼	7 (13.7)	3 (5.7)
Current diseases (n, %)			3.147†	.369
Hypertension	45 (88.2)	47 (88.7)
Diabetes	17 (33.3)	16 (30.2)
Stroke	15 (29.4)	9 (17.0)
Others	20 (39.2)	29 (54.7)
Number of medication types (n, %)			−0.294‡	.769
2∼	19 (37.3)	23 (43.4)
5∼	23 (45.1)	19 (35.8)
10∼	9 (17.6)	11 (20.8)
Monthly medication expenses (n, %)			−0.104‡	.917
<100	(7.9)	11 (20.8)
100∼	15 (29.4)	10 (18.9)
200∼	20 (39.2)	12 (22.6)
500∼	9 (17.6)	18 (33.9)
1000∼	3 (5.9)	2 (3.8)
Yr of medication (n, %)			−0.677‡	.499
<1	4 (7.9)	3 (5.7)
1∼	7 (13.7)	12 (22.6)
5∼	9 (17.6)	12 (22.6)
10∼	19 (37.3)	13 (24.5)
20∼	12 (23.5)	13 (24.5)
Scores of MBI, Mean (SD)	98.04 (3.48)	99.06 (2.41)	−1.740∗	.085
Scores of MMSE, mean (SD)	29.08 (1.32)	29.34 (1.19)	−1.058∗	.293