Table 2. Classification According to Characteristics of Research and Research Subjects

Author Country (Year, Language) Types of Study Sex (Male/Female) Age(year) (Minimum, Maximum) [Mean] Duration of Illness(month) (Min, Max) [Mean]
Huang Z et al20) China (2017, Chinese) RCT* I : (8/10), C: (9/9) I: (18, 70) [49±14]C: (20, 67) [49±12] I: (1, 72) [34.1±20.3]C: (3, 68) [34.3±18.7]
Man PL21) America (1975/English) CS§ (16/25) [64] [8.4yrs]
Zhang WW et al22) China (2022, Chinese) RCT I: (18/12), C: (13/17) I: (20, 69) [49±16]C: (20, 71) [46±15] I: (2, 11) [5.4±2.1]C: (3, 8) [5.6±1.4]
Chen ZM et al23) China (2012, Chinese) RCT I: (18/35), C: (20/30) I: (18, 75) [58.2±8.6]C: (20, 73) [52.5±6.4] I: (2, 60) [14.0±4.4]C: (1, 84) [15.0±6.5]
Wu MM et al24) China (2021, Chinese) RCT I: (9/21), C: (11/19) I: (19, 69) [47±15]C: (20, 68) [47±14] I: (2, 28) [12.2±6.4]C: (3, 24) [11.4±6.5]
Peng YY et al25) China (2008, Chinese) RCT I: (20/26), C: (17/23) I: [36.16±2.35]C: [37.34±2.15] I: [6.80±1.50]C: [6.50±1.40]
Yang JX et al26) China (2008, Chinese) RCT I: (11/19), C: (10/20) I: (35, 70) [40±9]C: (36, 68) [40±10] I: (1, 4.7) [3.1±3.5]C: (0.9, 4.5) [3.2±3.1]
Gao J et al27) America (2019/English) RCT I: (20/42), C: (19/35) I: [63.97±13.63]C: [63.96±11.81] -
Sun SZ et al28) China (2011, Chinese) RCT I: (20/6), C: (21/5) I: (43, 72) [58]C: (45, 60) [56.5] I: (2, 36) [1.6yrs]C: (1, 30) [1.65yrs]
Sert HY et al29) America (2009/English) CS (0/1) 66 25yrs
Zhang XY30) China (2005, Chinese) RCT I: (20/25), C: (18/27) I: (21, 71)C: (19, 78) I: (10days, 10yrs)C: (1week, 8yrs)
Mishra D et al31) America (2005/English) CS (1/0) 80 12yrs
He L et al32) China (2012, Chinese) RCT I: (9/24)-1*(personal issues),C: (9/23)-1*(personal issues) I: (38, 75) [54.84±8.99]C: (39, 76) [55.21±9.76] I: (3, 55) [20.84±15.80]C: (3, 53) [20.25±12.75]
Zhang YP et al33) China (2019, English) RCT I: (12/22)-1*(fear of acupuncture),C: (11/19)-1*(loss of patience) I: [47.3±5.7]C: [45.8±9.2] I: [4.37±4.1yrs]C: [4.60±3.7yrs]
Randomized controlled trial,
Intervention group,
Control group,
Case study