| Authors | Country | Study type | Sample size D : C | Mean age (years) D : C | Gender M : F | Intervention | Treatment duration (days) |
| Li and He [3] | China | RCTs | 124 (64/60) | 38.5/37.6 | 114/10 | 3 times, 100 mL, every day† DSSRC, 1 time, 100 mg, every day‡ | 20† 20‡ | Li [6] | China | RCTs | 100 (50/50) | 52.2/53.1 | 46/54 | 2 times, every day† DL-LAP, 4 times, 900 mg, every day‡ | NP† NP‡ | Li [10] | China | RCTs | 84 (42/42) | 49.5/49.5 | 49/35 | 3 times, 100 mL, every day† DSSRC, 1 time, 100 mg, every day‡ | NP† NP‡ | Ma [4] | China | RCTs | 80 (40/40) | 48.5/48 | 45/35 | 3 times, 250 mL, every day† aceclofenac, 2 times, 100 mg, every day‡ | 30† 20‡ | Ma et al. [5] | China | RCTs | 68 (34/34) | 48.3/48.3 | 41/27 | 2 times, every day† DSECT, 3 times, 25 mg, every day‡ | 21† 21‡ | Mao [7] | China | RCTs | 124 (64/60) | 39.5/38.6 | 98/26 | 3 times, 100 mL, every day† meloxicam, 1 time, every day‡ | 20† 20‡ | Rui and Zhao [12] | China | RCTs | 100 (50/50) | 38.8/39.4 | 80/20 | NP† DSECT, 1 time, 100 mg, every day‡ | NP† 28‡ | Wang and Yang [9] | China | RCTs | 100 (50/50) | NP | 65/35 | 2 times, every day† 3 times, DSECT, 25 mg; ibuprofen, 200 mg; indomethacin, 25 mg, every day‡ | 15† 15‡ | Wei and Yang [11] | China | RCTs | 64 (32/32) | 41.5/43.2 | 38/26 | 2 times, every day† NP‡ | 28† NP‡ | Xie and Du [8] | China | RCTs | 132 (66/66) | NP | NP | 3 times, every day† 2 times, ICST, 213 mg; mannitol, 250 ml; vitamin B1, 10 mg, every day‡ | 21† 21‡ | Xue [16] | China | RCTs | 60 (30/30) | 40.5/40.2 | 37/23 | 2 times, every day† DSECT, 3 times, 25 mg, every day‡ | 21† 21‡ | Zhang et al. [14] | China | RCTs | 350 (175/175) | 42.8/41.7 | 189/161 | 2 times, every day† DSECT, 1 time, 100 mg, every day‡ | 14† 14‡ | Zhang and Zhong [15] | China | RCTs | 100 (50/50) | NP | 49/51 | 3 times, 250 mL, every day† DSECT, 2 times, 100 mg, every day‡ | 20† 20‡ | Zou [13] | China | RCTs | 74 (37/37) | 55.2/55.4 | 41/33 | 1 time, every day† NP‡ | 30† 30‡ |
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