[Retracted] A Meta-Analysis of the Effect of Exercise Rehabilitation Care on Cardiac Function in Patients with Chronic Heart Failure

Table 1

Basic characteristics of the included literature.

Author	Year of publication	Research site	Sample size (test group/comparison group)	Age (years)	Gender (male/female)	Follow-up time (months)
[8]	2016	Shanghai	30/30	56.78 ± 4.32	30/30	6
[9]	2018	Henan province	57/57	63.43 ± 7.92	63/51	1
[10]	2016	Guangzhou city	40/40	56.30 ± 1.40	43/37	12
[11]	2017	Shenzhen	41/41	59.14 ± 10.88	45/37	6
[12]	2020	Shenzhen	49/49	64.60 ± 2.70	69/29	3
[2]	2017	Shaanxi province	40/40	71.3 ± 10.4	49/33	6
Bunny Pozehl	2015	United Kingdom	30/30	68.60 ± 8.50	35/25	3
[5]	2017	United States	61/60	64.3 ± 11.7	63/58	6
[1]	2019	Shandong	37/20	68.10 ± 1.14	41/16	3