Demographic and clinical profiles of SCLC patients and controls included in this study (x¯±s).

*Statistics were conducted using the independent-Samples T Test and chi-square test. **F = female and M = for male. L = limited stage and E = extensive stage. Demographic and clinical profiles of SCLC patients and controls included in this study ( x¯ ±s ).* 本研究采用独立样本t检验（independent-Samples T Test）与卡方检验（chi-square test）开展统计学分析。 ** 注：F代表女性（female），M代表男性（male）；L代表局限期（limited stage），E代表广泛期（extensive stage）。 本研究纳入的小细胞肺癌（Small Cell Lung Cancer, SCLC）患者与对照人群的人口学及临床特征以均数±标准差（$ar{x}±s$）形式呈现。