Yiqi Yangyin Huoxue Method in Treating Diabetic Retinopathy: A Systematic Review and Meta-Analysis

Table 1

Characteristics of the eligible studies.

Studies (first author, year)	Location	Patients No.	Age (mean years)	Genders (M/F)	Intervention group	Course of treatment (week)	Follow-up (mo)
Hu [10], 2010	China	34	57.6	18/16	TCM+ laser	2-6	3
Wen [11], 2012	China	46	50.5	24/22	TCM+ laser	2-6	6-12
Li [12], 2016	China	80	47.05	36/44	TCM	52	NMT
Xia [13], 2011	China	122	55	66/56	TCM+ laser	4	NMT
Li [14], 2018	China	98	57.89	43/55	TCM	8	NMT
Gao [15], 2017	China	80	55.5	36/44	TCM+ laser	12	NMT
Zhou [16], 2011	China	59	56	24/35	TCM	12	NMT
Gong [17], 2018	China	40	53.4	19/21	TCM	12	NMT
Xu [18], 2013	China	62	59.84	28/34	TCM	4	NMT
Xiong [19], 2009	China	40	57	19/21	TCM	12	NMT

NMT: not mentioned.