In:
Tumori Journal, SAGE Publications, Vol. 98, No. 1 ( 2012-01), p. 99-104
Abstract:
It is still unclear whether age is an independent prognostic factor in patients with stage I NSCLC. Methods Five hundred and sixty-nine patients with stage I adenocarinoma who underwent surgical resection as first treatment were included. The effect on overall survival of age, gender, smoking habits, Charlson comorbidity index score (CCIS), type of surgery, tumor size and lymphatic or blood vessel invasion was analyzed. Results When the patients were divided into four groups according to quartiles of age, distributions of gender, smoking habit, CCIS, histology, blood vessel invasion and adjuvant chemotherapy were significantly different among the four groups. Age, gender, smoking habit, CCIS, tumor size and lymphatic and blood vessel invasion were significantly associated with overall survival of the patients in Kaplan-Meier analysis (logrank, P 〈 0.001, P 〈 0.001, P = 0.029, P 〈 0.001, P = 0.001, P = 0.001 and P = 0.007, respectively). Moreover, the highest quartile of age (over 68 years old) was a prominent determinant for a worse prognosis after adjustment for the confounding variables using a Cox proportional hazard model (adjusted hazard ratio = 2.735, 95% confidence interval = 1.623–4.608, P 〈 0.001). Conclusions The findings suggest that age is an important determinant of overall survival in patients with stage I adenocarcinoma. Therefore, age should be considered in classifying the patients into groups of higher or lower risk for death as well as in designing clinical trials.
Type of Medium:
Online Resource
ISSN:
0300-8916
,
2038-2529
DOI:
10.1177/030089161209800114
Language:
English
Publisher:
SAGE Publications
Publication Date:
2012
detail.hit.zdb_id:
280962-X
detail.hit.zdb_id:
2267832-3
