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Table 2 Clinical Characteristics

From: Frequency of the acquired resistant mutation T790 M in non-small cell lung cancer patients with active exon 19Del and exon 21 L858R: a systematic review and meta-analysis

  Gender(n) Age(n) Smoking status(n) OS* (months)
Man Female <70 ≥70 Smoker Non-smoker
T790 M(+) 73 133 84 22 46 136 41.6
T790 M(−) 81 125 102 27 45 127 30.3
  1. *P < 0.05 (data from the research11, 12, 13, 16 and19; n = 309)