The 5-year survival rate for patients having curative resection was 71.4%versus 75.3%for patients with T_1N_0M_0 treated by lobectomy during the same period of time at our department.

• 后组病例术后5年生存率为71．4%25，与该院同期T_1N_0M_0肺癌行肺叶切除的5年生存率（75．3%25）无明显差别。