| Study | Size T/C | Sex male/female | Age | Interventions | Course duration | Outcome measures | T | C | T | C |
| Chen [11] | 66/66 | 69/63 | 6.5 ± 2.4 | 6.4 ± 2.5 | XXZ + Azithromycin, p.o. | Azithromycin, p.o. | 10 days | ①②③④⑥⑧ | Gu [12] | 56/56 | 84/28 | 7.1 ± 1.0 | 6.8 ± 1.1 | XXZ + Azithromycin, p.o. | Azithromycin, p.o. | 1 week | ④⑥ | Hu [13] | 86/86 | 83/89 | 8.25 ± 3.71 | 8.31 ± 2.55 | XXZ + Azithromycin, p.o. | Azithromycin, p.o. | 4 weeks | ①②③④⑦⑧ | Qi [14] | 34/34 | 42/26 | 4.6 ± 1.9 | 4.8 ± 2.2 | XXZ + Azithromycin, p.o. | Azithromycin, p.o. | 1 week | ④ | Wang [15] | 32/32 | 31/33 | 7.54 ± 2.75 | 6.32 ± 2.14 | XXZ + Azithromycin, p.o. | Azithromycin, p.o. | 1 week | ④ | Xie [16] | 60/60 | 61/59 | 5.19 ± 2.38 | 5.21 ± 2.46 | XXZ + Azithromycin, p.o. | Azithromycin, p.o. | 1 week | ④⑥ | Yu [17] | 31/31 | 30/32 | 6.32 ± 2.12 | 6.94 ± 2.76 | XXZ + Azithromycin, p.o. | Azithromycin, p.o. | 1 week | ④ | Xue [18] | 46/46 | 55/37 | 5.41 ± 1.10 | 5.38 ± 1.25 | XXZ + Azithromycin, p.o. | Azithromycin, p.o. | 2 weeks | ①②③④⑤⑥⑧ | Chao [19] | 52/52 | 62/42 | 5.27 ± 1.32 | 5.13 ± 1.26 | XXZ + Azithromycin, i.v. | Azithromycin, i.v. | 2 weeks | ④⑦ | Li [20] | 36/35 | 39/32 | 6.6 ± 2.5 | 6.2 ± 2.1 | XXZ + Azithromycin, i.v. | Azithromycin, i.v. | 2 weeks | ①②③④⑤ | Li [21] | 78/76 | 82/72 | 5.6 ± 1.3 | 5.5 ± 1.2 | XXZ + Azithromycin, i.v. | Azithromycin, i.v. | 2 weeks | ④⑦ | Li and Jin [22] | 63/63 | 70/56 | 5.6 ± 1.3 | 5.5 ± 1.2 | XXZ + Azithromycin, i.v. | Azithromycin, i.v. | 1 week | ④⑦ | Zhao [23] | 35/35 | 39/31 | 7.55 ± 2.06 | 7.51 ± 2.02 | XXZ + Azithromycin, i.v. | Azithromycin, i.v. | 2 weeks | ①②③④⑤⑧ | Zheng et al. [24] | 30/30 | 31/29 | 8.01 ± 2.32 | 8.47 ± 2.06 | XXZ + Azithromycin, i.v. | Azithromycin, i.v. | 30 days | ④⑥⑧ | Zong [25] | 47/46 | 51/42 | 3.27 ± 0.77 | 3.19 ± 0.68 | XXZ + Azithromycin, i.v. | Azithromycin, i.v. | 15 days | ①②③④⑤ |
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XXZ, Xiao’er Xiaoji Zhike oral liquid; T, trial group; C, control group; ①cough disappearance time, ②lung rale disappearance time, ③fever subsidence time, ④total effective rate, ⑤lung X-ray infiltrates disappearing time, ⑥immunological indexes, ⑦others, and ⑧adverse reaction.
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