Table 2. Effect of individual studies on the pooled HRs of EGFR expression and overall survival.
| Study omitted | HR | Lower value of 95% CI | Upper value of 95% CI |
|---|---|---|---|
| Hirono et al 1995 | 1.1928611 | 1.0328844 | 1.3776154 |
| Jonjic et al 1997 | 1.1617202 | 1.0121113 | 1.3334442 |
| Song et al 2004 | 1.1998487 | 1.0386479 | 1.3860684 |
| Langer et al 2006 | 1.2199296 | 1.0275393 | 1.4483418 |
| Galizia et al 2007 | 1.1671815 | 1.0171522 | 1.3393401 |
| Matsubara et al 2008 | 1.2024842 | 1.0395564 | 1.3909475 |
| Kim et al 2008 | 1.1484013 | 1.0027492 | 1.3152098 |
| Kim et al 2009 | 1.2254386 | 1.063726 | 1.4117356 |
| Czyzewska et al 2009 | 1.1940148 | 1.0348687 | 1.3776351 |
| Inokuchi et al 2011 | 1.1723867 | 1.0195748 | 1.3481018 |
| Zhang et al 2011 | 1.1865808 | 1.0283683 | 1.3691339 |
| Atmaca et al 2012 | 1.2157478 | 1.0466765 | 1.4121294 |
| Terashima et al 2012 | 1.1663924 | 1.0124791 | 1.3437031 |
| Al-Moundhri et al 2012 | 1.1679779 | 1.0142503 | 1.3450057 |
| Gao et al 2013 | 1.1759335 | 1.0220827 | 1.3529429 |
| Li et al 2013 | 1.1981824 | 1.0376033 | 1.3836125 |
| Kandel et al 2013 | 1.1790264 | 1.0234496 | 1.3582527 |
| Aydin et al 2013 | 1.2049856 | 1.0482415 | 1.3851677 |
| Kurokawa et al 2014 | 1.1744384 | 1.0198769 | 1.3524236 |
| Fuse et al 2014 | 1.1992651 | 1.0315969 | 1.3941848 |
| Tang et al 2014 | 1.1845405 | 1.0270487 | 1.3661827 |
| Nagatsuma et al 2014 | 1.2351219 | 1.0736278 | 1.4209078 |
| Paliga et al 2015 | 1.177506 | 1.0215301 | 1.3572975 |
| Seo et al 2015 | 1.2041327 | 1.045177 | 1.387263 |
| Park et al 2016 | 1.2147179 | 1.0458301 | 1.4108788 |
| combined | 1.1901691 | 1.0350099 | 1.3685883 |