Table 1.

Comparison of baseline data

Consideration		Control group (n = 38)	Joint group (n = 38)	χ2/t value	P-value
Age		65.24±3.23	64.87±3.94	-0.446	0.657
Gender
Male		18	21	0.474	0.491
Female		20	17
Course of disease		5.71±1.74	5.68±2.03	-0.061	0.952
NYHA
Class	II	16	16	0.000	1.000
	III	22	22
Monthly household income (yuan)
≥3000		11	15	0.935	0.333
<3000		27	23
History of diabetes
Yes		8	10	0.291	0.589
No		30	28
Smoking history
Yes		18	17	0.053	0.818
No		20	21

Note: NYHA, New York Heart Function Classification.