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Table 1 Characteristics of the studies in meta-analysis

From: Valgus knee bracing may have no long-term effect on pain improvement and functional activity in patients with knee osteoarthritis: a meta-analysis of randomized trials

Study Year Country/region Journal Study type Level of evidence Sample size (T/C)a Gender (M/F) Median age (T/C)a BMIa (T/C)a Length of follow-up
Hunter et al. [15] 2012 Australia. Ann Rheum Dis RCT I 29/27 30/50 63.0/60.0 32.7/34.7 30 weeks
van Raaij et al. [19] 2010 Netherlands Clin Orthop Relat Res RCT I 46/45 46/45 54.9/54.4 29.0/29.4 26 weeks
Yu et al. [20] 2016 Australia. Int J Rheum Dis. RCT II 86/68 54/100 67.7/67.0 30.7/33.2 52 weeks
Dammere et al. [21] 2018 Austria Knee Surg Sports Traumatol Arthrosc RCT I 21/21 22/20 50.6/53.3 24.7/26.5 52 weeks
Thoumie et al. [22] 2018 France Sci Rep. RCT I 32/35 23/44 64.8/66.6 29.2/28.1 6 weeks
Jones et al. [23] 2012 UK Gait Posture RCT I 28/28 NA NA NA 2 weeks
Callaghan et al. [24] 2015 USA Ann Rheum Dis RCT I 56/61 NA NA NA 6 weeks
Müller-Rath et al. [25] 2011 Germany Z Orthop Unfall. RCT I 13/10 16/7 49.8/57.4 27/28 16 weeks
Niazi et al. [26] 2014 Pakistan Pak J Med Sci RCT I 56/53 NA NA NA 26 weeks
Arazpour et al. [27] 2013 Iran Prosthet Orthot Int RCT I 12/12 9/15 58.75/59.83 27.30/26.71 6 weeks
  1. C control group, BMI body mass index, NA not applicable
  2. aT experimental group