Table 6 Original studies about volume of interventions and short-term mortality in stomach cancer (published in English and indexed 1999–January 2008).
REFERENCE | N | PERIOD | SOURCE | VOLUME CATEGORIES | MORTALITY TOTAL % and/or (range by volume) | DEFINITION | ADJUST | ASSOC. |
|---|---|---|---|---|---|---|---|---|
Bachmann MO, Br J Surg, 2002 | 405 | 1996–1997 | CDB | Terciles | 14 | operative (≤ 30 days) | Yes | No |
Birkmeyer JD, Cancer, 2006 | 9,403 | 2000–2002 | ADB | Quintiles | 7.3 – 10.1 | operative (discharge or ≤ 30 days) | Yes | Yes |
Birkmeyer JD, N Eng J Med, 2002 | 31,944 | 1994–1999 | ADB | Quintiles | 8.7 – 13.0 | operative (discharge or ≤ 30 days) | No | Yes |
Callahan MA, Ann Surg, 2003 | 6,434 | 1998–2001 | ADB | Quartiles | 8.4 (3.7 – 11.3) | in-hospital (discharge) | Yes | Yes |
Damhuis RAM, Eur J Surg Oncol, 2002 | 1,978 | 1987–1997 | R | <7, 7–10, >10 | 7.9 (3.1 – 15.1) | operative (≤ 30 days) | Yes | No |
Finlayson EVA, Arch Surg, 2003 | 16,081 | 1995–1997 | ADB | <9, 9–17, >17 | 6.9 – 8.7 | in-hospital (discharge) | Yes | No |
Gordon TA, J Am Coll Surg, 1999 | 705 | 1989–1997 | ADB | ≤ 10, 11–20... ≥ 201 | 10.9 (6.3 – 12.8) (total gastrectomy) | in-hospital (discharge) | Yes | No |
Hannan EL, Surgery, 2002 | 3,711 | 1994–1997 | ADB | Quartiles | 6.2 (2.8 – 11.2) | in-hospital (discharge) | Yes | Yes |
Hansson LE, Eur J Surg, 2000 | 1,024 | 1989–1995 | CDB | Hospital level | 12 (10 – 13) | in-hospital (discharge) | Yes | No |
Jensen LS, Scand J Surg, 2007 | 537 | 1999–2004 | ADB | <5, 5–20, >20 | 8.2 (8.0 – 8.4) | operative (discharge or ≤ 30 days) | No | No |
Lin HC, Ann Surg Oncol, 2006 | 11,348 | 2000–2003 | ADB | Quintiles | 1.3 – 5.3 | in-hospital (discharge) | Yes | Yes |
McCulloch P, Br Med J, 2003 | 590 | 1999–2002 | CDB | ≤ 10, 11–20, ≥ 21 | 10.3 | in-hospital (discharge) | Yes | Weak |
Reid-Lombardo KM, J Gastrointest Surg, 2007 | 6,047 | 2001 | R | Hospital level | 5.5 – 9.9 | operative (≤ 30 days) | Yes | Yes |
Smith JK, Arch Surg, 2007 | 13,354 | 1998–2003 | ADB | ≤ 4, 5–10, ≥ 11 | 6 (4.9 – 6.8) | in-hospital (discharge) | Yes | Yes |
Smith DL, Ann Surg Oncol, 2007 | 1,864 | 1999–2001 | ADB | <3, 3–15, >15 | 0.8 – 9.5 | in-hospital (discharge) | Yes | Yes |
Thompson AM, Br J Surg, 2007 | 1,264 | 1997–1999 | CDB | Quartiles | 9.1 – 11.9 | operative (discharge or ≤ 30 days) | No | No |
Wainess RM, J Gastrointest Surg, 2003 | 23,690 | 1988–2000 | ADB | Terciles | 7.4 (6.5 – 8.3) | in-hospital (discharge) | Yes | No |
Xirasagar S, Eur J Surg Oncol, 2008 | 6,909 | 1997–1999 | ADB | Quartiles | 18.5 – 24.5 | 6-month | Yes | No |