Author, Date | No. | Country | Type study | Tumour | % CRM involvement | Significance on univariate survival | Significant on multivariate survival |
---|---|---|---|---|---|---|---|
Sagar, 1993 [50] | 50 | UK | R | Adeno, SCC | 40% | Yes (p < 0.05) | Not tested |
Saha, 2001 [56] | 59 | UK | R | Adeno | Unknown | Yes (p < 0.01) | Yes (p < 0.05) |
Dexter, 2001 [51]* | 135 | UK | P | Adeno, SCC | 47% | Yes (p < 0.015) | Yes (p = 0.013) |
Zafirellis, 2002 [53]* | 156 | UK | P | Adeno, SCC | 42% | Yes (p < 0.0001) | Not significant |
Khan, 2003 [54] | 329 | UK | R | Adeno, SCC | 20% | No (p = 0.57) | Not applicable |
Roh, 2004 [119] | 59 | Korea | R | SCC | 44% | Yes (p = 0.003) | Not tested |
Griffiths, 2006 [52] | 249 | UK | R | Adeno, SCC | 32% | Yes (p = 0.0001) | Yes (p = 0.007) |