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表1类风湿关节炎(RA)随机对照临床试验治疗疗效测定[4]组别样本数未达到ACR50标准例数治疗无效率RR(X/Y)RRR(1-X/Y)ARR(Y-X)出现1例ACR50缓解需要治疗人数[1/(Y-X)]因为副反应撤药人数撤药率NH[1/(b-治疗组(etanercept)7838 0.487(X)0.520.48 0.452.220.026(a)83.对照组(安慰剂
Table 1 Rheumatoid arthritis (RA) randomized controlled trials of the efficacy of treatment [4] The number of samples in the group did not meet the standard number of ACR50 Treatment inefficiency RR (X / Y) RRR (1-X / Y) ARR (YX) (1 / (YX)] because of the number of side effects of withdrawal due to side effects of ACR50 [1 / (b-etanercept 7838 0.487 (X) 0.520.48 0.452.220.026 (a) 83. Control group (placebo