Systematic review of Yougui pills combined with levothyroxine sodium in the treatment of hypothyroidism

Table 2 Basic characteristics table

Ref.	Intervention measure	Control measure	Average age (yr)		Duration of treatment/follow-up (wk)
			Experimental group	Control group
Zhang et al[15], 2008	Yougui pills + levothyroxine sodium	Levothyroxine sodium	53	55	8
Li et al[16], 2012	Yougui pills + levothyroxine sodium	Levothyroxine sodium	68.1 ± 5.3	66.7 ± 5.1	12
Zhang et al[17], 2015	Yougui pills + levothyroxine sodium	Levothyroxine sodium	42.7 ± 3.6	42.7 ± 3.6
Li et al[18], 2016	Yougui pills + levothyroxine sodium	Levothyroxine sodium	40.2 ± 9.4	40.2 ± 9.4
Wang et al[19], 2016	Yougui pills + levothyroxine sodium	Levothyroxine sodium	40.12 ± 9.50	40.57 ± 9.53	12
Jiang et al[20], 2017	Yougui pills + levothyroxine sodium	Levothyroxine sodium	40.9 ± 5.6	40.8 ± 5.8	12
Liu et al[21], 2017	Yougui pills + levothyroxine sodium	Levothyroxine sodium	37.98 ± 13.83	38.88 ± 12.10	8
Chen et al[22], 2018	Yougui pills + levothyroxine sodium	Levothyroxine sodium	40.88 ± 5.12	40.95 ± 5.62	12
Shi et al[23], 2018	Yougui pills + levothyroxine sodium	Levothyroxine sodium	44.6 ± 12.4	45.1 ± 11.9	12