Hai Zhong1, Yingying Qian1, Surong Fang1, Linfei Yang1, Lingzhi Li1, Wei Gu2. 1. Department of Respiration, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing, Jiangsu 210006, People's Republic of China. 2. Department of Respiration, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing, Jiangsu 210006, People's Republic of China. Electronic address: njfh_805@163.com.
Abstract
BACKGROUND: The prognostic role of Human epididymis protein 4 (HE4) expression in lung cancer remains controversial. We performed this meta-analysis to assess the prognostic value of HE4 expression in lung cancer. METHODS: A systematic literature search was conducted to identify eligible studies in PubMed, Embase and Wanfang databases. The pooled hazard ratios (HRs) and their 95% confidence intervals (CIs) were used to assess the relationship. RESULTS: A total of 1412 patients from 8 studies were included in this meta-analysis. The results of univariate analysis (HR=1.73, 95% CI: 1.19-2.52, P=0.004) and multivariate analysis (HR=2.49, 95% CI: 1.89-3.28, P<0.001) demonstrated that high HE4 expression in lung cancer patients was correlated with poor overall survival (OS). We observed through further stratified analysis of the results of the univariate analysis that high HE4 expression was associated with worse OS in Asian lung cancer patients (HR=2.48, 95% CI: 1.88-3.26, P<0.001). However, there was no significant association between high HE4 expression and poor OS in Caucasian patients (HR=1.12, 95% CI: 0.80-1.55, P=0.513). CONCLUSION: High serum HE4 level was a marker of poor prognosis in lung cancer patients, particularly in Asian patients with lung cancer.
BACKGROUND: The prognostic role of Human epididymis protein 4 (HE4) expression in lung cancer remains controversial. We performed this meta-analysis to assess the prognostic value of HE4 expression in lung cancer. METHODS: A systematic literature search was conducted to identify eligible studies in PubMed, Embase and Wanfang databases. The pooled hazard ratios (HRs) and their 95% confidence intervals (CIs) were used to assess the relationship. RESULTS: A total of 1412 patients from 8 studies were included in this meta-analysis. The results of univariate analysis (HR=1.73, 95% CI: 1.19-2.52, P=0.004) and multivariate analysis (HR=2.49, 95% CI: 1.89-3.28, P<0.001) demonstrated that high HE4 expression in lung cancerpatients was correlated with poor overall survival (OS). We observed through further stratified analysis of the results of the univariate analysis that high HE4 expression was associated with worse OS in Asian lung cancerpatients (HR=2.48, 95% CI: 1.88-3.26, P<0.001). However, there was no significant association between high HE4 expression and poor OS in Caucasian patients (HR=1.12, 95% CI: 0.80-1.55, P=0.513). CONCLUSION: High serum HE4 level was a marker of poor prognosis in lung cancerpatients, particularly in Asian patients with lung cancer.