Chinese Herbal Medicine Paratherapy for Parkinson's Disease: A Meta-Analysis of 19 Randomized Controlled Trials

Table 8

Forest plot of comparison: Chinese herbal medicine versus conventional treatment: UPDRS I–IV total scores.

Study or subgroup	Experimental			Control				Mean difference	Mean difference
	Mean	SD	Total	Mean	SD	Total	Weight	IV, fixed, 95% CI	IV, fixed, 95% CI
Cheng et al. [24]	43.2	6.74	20	50.2	5.62	20	26.7%	−7.00 [−10.85, −3.15]
Cui et al. [17]	41.2	28.5	35	44.5	29.1	35	2.2%	−3.30 [−16.79, 10.19]
Li et al. [33]	40.7	15.1	56	45.9	18.1	54	10.1%	−5.20 [−11.44, 1.04]
Luo et al. [21]	22.96	11.841	22	32	14.19	19	6.1%	−9.04 [−17.11, −0.97]
Pan et al. [35]	43.16	16.78	47	51.08	19.51	44	7.0%	−7.92 [−15.42, −0.42]
Shen and Yuan [20]	61.35	26 41	40	72.09	16.6	32	3.9%	−10.74 [−20.74, −0,74]
Wang et al. [18]	36.95	7.24	20	40.35	8.98	20	15.5%	−3.40 [−8.46, 1.66]
Wang et al. [19]	17.15	10.6	53	24.12	13.38	50	18.0%	−6.97 [−11.65, −2.29]
Xie et al. [23]	45.36	23.14	14	4843	21.8	14	1.4%	−3.07 [19.72, 13.58]
Zhoa et al. [26]	35.09	19.14	75	38.04	22.6	79	9.1%	−2.95 [−9.55, 3.65]
Total (95% Cl)			382			367	100.0%	−60.9 [−8.08, −4.10]
Heterogeneity: Chi^2 = 4.25; df = 9 (𝑃=0.89); 𝑙^2 = 0%
Test for overall effect: 𝑍 = 6.00 (𝑃<0.00001)