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Forest plot for survival stratified by overall survival (OS), progression-free survival (PFS) and time-to-progression (TTP).

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posted on 19.02.2013, 15:12 by Zheng Jiang, Chunxiang Li, Fuyuan Li, Xishan Wang

Hazard ratios (HR) comparing patients with increased versus not increased EGFR gene copy number are presented. Each study is shown by the point estimate of the HR (square proportional to the weight of each study) and 95% confidence interval for the HR (extending lines); summary HR and their 95% confidence intervals by random-effects calculations are shown by diamonds. Value lower than one indicates that patients with increased EGFR gene copy number have improved survival compared to patients without increase in EGFR gene copy number.