Table 2.
Author | Patients, n | Stage | Hospital, case volume | Surgeon, case volume | Odds ratio, death | 95% CI | Year(s) of treatment | Country |
---|---|---|---|---|---|---|---|---|
Twelves et al. 2001 [31] | 1,617 | M0 | 1–9 | 1.07 | 0.83–1.37 | 1987 | Scottland | |
10–29 | 1.11 | 0.91–1.35 | ||||||
≥30 | 1.0 | |||||||
Nattinger et al., 2007 [22] | 12,216 | I, II | <5 | 1 | 1994–1996 | USA | ||
>66 years | 5–9 | 1.0 | 0.84–1.20 | |||||
>10 | 0.94 | 0.76–1.16 |