text_1: 研究者 共 报告 了 80 个 呼吸机 相关 性肺炎 病例 ( 抗生素 组 31 例 [ 31% ] 和 对照组 49 例 [ 52% ] ) , 其中 60 例 被 裁定 委员会 判定 为 呼吸机 相关 性肺炎 ( 抗生素 组 23 例 [ 23% ] 和 对照组 37 例 [ 39% ] ) .
  
text_2: a total of 80 cases of ventilator @-@ associated pneumonia were reported by the investigators ( 31 [ 31 % of the patients ] in the antibiotic group and 49 [ 52 % ] in the control group ) , of which 60 cases were assessed as ventilator @-@ associated pneumonia by the adjudication committee ( 23 [ 23 % ] in the antibiotic group and 37 [ 39 % ] in the control group ) .
  