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J Thorac Cardiovasc Surg. 2007 Oct;134(4):850-6. Epub 2007 Aug 20.

Factors predicting poor survival after resection of stage IA non-small cell lung cancer.

Author information

1
Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, and Boston VA Healthcare, Harvard School of Public Health, Boston, Mass, USA. Michael.Y.Chang@kp.org

Abstract

OBJECTIVE:

Using a national cancer registry, we determined the postoperative survival of patients with stage IA non-small cell lung cancer in the United States from 1988 to 1997 and identified factors that affect survival.

METHODS:

Within the Surveillance, Epidemiology, and End Result Program database, 10,761 patients were identified as having stage IA non-small cell lung cancer and underwent curative surgical resection from 1988 to 1997. Univariate analyses were performed by the log-rank test to determine predictors of survival, and multivariable analysis was performed by a Cox regression model.

RESULTS:

Overall 5-year survival was 58%. On univariate analysis, tumor size, gender, age, and extent of resection were significant predictors of survival. Five-year survival of patients with tumors 2.1 to 3.0 cm was lower than that for patients with tumors 2.0 cm or smaller: 55% versus 60% (P < .0001). Men faired significantly worse than women, with a 5-year survival of 53% versus 63% (P < .0001). Patients older than the median age of 67 years had worse 5-year survival than had those under the median age: 52% versus 65% (P < .0001). Patients undergoing sublobar resections showed poorer 5-year survival than patients undergoing anatomic resections: 44% versus 61% (P < .0001). On multivariable analysis with a Cox regression model, all 4 variables remained statistically significant.

CONCLUSION:

The survival of patients with stage IA non-small cell lung cancer within the United States is significantly worse than survival reported from single-institution studies. This study identifies 4 factors that may affect survival in resected stage IA non-small cell lung cancer: tumor size, gender, age, and extent of resection.

PMID:
17903494
DOI:
10.1016/j.jtcvs.2007.03.044
[Indexed for MEDLINE]
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