Results In this series, the preoperative misdiagnosis rate was high(38.5%), 89.0% of the patients complicated with other diseases.

结果高龄结直肠癌患者入院前误诊率高（ 3 8。5 % ） ，并存病多（ 89。

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Result Digestibility ulcer is complicated with more other diseases in the aged than in youth, which have more unrepresentative clinical symptoms, is harder to cure, and cause more death.

结果老年人消化性溃疡较年青人伴发其它疾病多，临床表现不典型，难于治疗，死亡相对增多。

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Result Digestibility ulcer is complicated with more other diseases in the aged than in youth, which have more unrepresentative clinical symptoms, is harder to cure, and cause more death.

结果老年人消化性溃疡较年青人伴发其它疾病多，临床表现不典型，难于治疗，死亡相对增多。

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