Table 1.

Basic characteristics of included studies.

	T				C
Included studies	Age (yr)	DM course (yr)	n	Intervention	Age (yr)	DM course (yr)	n	Intervention	Treatment Course	Outcomes
Zhu MM 2018	54.52 ± 10.31	8.66 ± 2.13	33	A	54.96 ± 10.45	8.21 ± 2.65	33	F	2weeks	(1) (2) (3) (4) (5)
Chang Y 2013	–	–	30	C	–	–	30	F	2weeks	(1) (2) (3) (4) (5)
Li H 2011	53.58 ± 6.72	–	38	B	55.14 ± 8.54	–	38	F	2weeks	(1) (2) (3) (4) (5)
Li JP 2011	35–78	2–38	60	C	34–75	2–35	26	F	2weeks	(1)
Dai LF 2010	54.5 ± 4.2	8.2 ± 3.4	41	A	55.3 ± 3.2	9.0 ± 2.5	39	F	3weeks	(1) (2) (3) (4) (5)
Liu L 2019	57.44 ± 12.30	9.65 ± 2.18	50	D	58.03 ± 12.78	9.88 ± 2.31	50	F	8weeks	(1) (2) (3) (4) (5)
Liang Y 2019	53 ± 5	3–15	35	C	54 ± 4	2–16	35	F	2weeks	(1) (2) (3) (4) (5)
Li TJ 2011	53–82	5–13	50	C	56–78	8–15	50	F	4weeks	(1) (2) (3) (4) (5)
Sun H 2013	57.6 ± 7.8	8.7 ± 2.3	57	C	59.1 ± 9.2	9.1 ± 2.1	57	F	3weeks	(1) (2) (3) (4) (5)
Zhang MX 2016	58.2 ± 6.8	4.5 ± 0.8	42	B	56.3 ± 5.5	5.2 ± 1.6	42	F	2weeks	(1) (2) (3) (4) (5)
Wang Y-H 2014	60.87 ± 8.84	16.9 ± 7.04	45	E	59.74 ± 9.34	15.49 ± 6.54	43	F	4weeks	(1)
Peng HX 2011	61.3 ± 8.6	8.3 ± 4.6	56	A	62.9 ± 8.9	8.5 ± 4.9	56	F	2weeks	(1) (2) (3)
Jiang ZM 2015	43–85	5–31	86	C	43–85	5–31	77	F	2weeks	(1) (2) (3) (4) (5)
Zhang YJ 2017	58.7 ± 7.9	8.4 ± 1.7	45	C	59.2 ± 8.5	9.1 ± 1.5	45	F	3weeks	(1) (2) (3) (4) (5)
Wang YH 2014	57.23 ± 6.61	13.53 ± 2.66	30	D	58.13 ± 7.05	12.83 ± 2.53	30	F	8weeks	(1) (2) (3) (4) (5)