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Int J Cancer. 2017 Apr 1;140(7):1645-1652. doi: 10.1002/ijc.30581. Epub 2017 Jan 12.

Pretreatment direct bilirubin and total cholesterol are significant predictors of overall survival in advanced non-small-cell lung cancer patients with EGFR mutations.

Author information

1
Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, People's Republic of China.
2
Department of Research Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, People's Republic of China.
3
Department of Biobank, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, People's Republic of China.

Abstract

This study was designed to examine the prediction of pretreatment circulating bilirubin and cholesterol for overall survival in 459 advanced non-small-cell lung cancer (NSCLC) patients with epidermal growth factor receptor (EGFR) mutations. Circulating total bilirubin, direct bilirubin (DB), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) levels were measured at baseline. The mean age (standard deviation) of all study patients was 58.7 (10.5) years, and 42.9% of them was males. Ever smokers accounted for 27.0% and lung adenocarcinoma for 90.4%. The median follow-up time and survival time were 29.5 and 34.9 months, respectively. Patients with higher DB had a 1.68-fold increased risk of death compared with patients with lower DB (hazard ratio [HR] = 1.68, 95% confidence interval [CI]: 1.22-2.30, p = 0.001), while patients with higher TC were at a 63% reduced risk of death compared with patients with lower TC (HR = 0.37, 95% CI: 0.20-0.67, p = 0.001). As for HDL-C, patients with higher levels had the risk of death reduced by 46% (HR = 0.54, 95% CI: 0.29-1.00, p = 0.049) compared with patients with lower levels. After the Bonferroni correction, only DB and TC were significantly associated with NSCLC survival. Our findings demonstrate for the first time that pretreatment DB was identified as a significant risk factor, yet TC as a protective factor, for overall survival in NSCLC patients with EGFR mutations.

KEYWORDS:

EGFR mutations; bilirubin; cholesterol; non-small-cell lung cancer; overall survival

PMID:
28006834
DOI:
10.1002/ijc.30581
[Indexed for MEDLINE]
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