Table 6 Odds ratios of preoperative death, unplanned emergency surgery, and planned surgery for patient and center factors, for patients registered for bypass surgery in 1992–2005, derived from regression models for cumulative incidence functions*
Factor | Preoperative deaths OR (95% CI) | Emergency surgeries OR (95% CI) | Planned surgeries OR (95% CI) |
|---|---|---|---|
Urgency group at registration | |||
Urgent | NA1 | 2.49 (1.71–3.61) | 3.94 (3.36–4.62) |
Semiurgent | 1.00 | 1.00 | 1.00 |
Nonurgent | 1.92 (1.25–2.95) | 0.88 (0.64–1.20) | 0.52 (0.48–0.57) |
Sex | |||
Men | 1.00 | 1.00 | 1.00 |
Women | 0.51 (0.27–0.98) | 1.14 (0.87–1.49) | 0.86 (0.78–0.93) |
Age decade | 1.26 (1.00–1.59) | NA2 | NA2 |
Age group (years) | |||
<50 | NA2 | 1.20 (0.79–1.83) | 1.12 (0.98–1.28) |
50–59 | NA2 | 1.00 | 1.00 |
60–69 | NA2 | 0.99 (0.75–1.32) | 1.05 (0.97–1.15) |
70–79 | NA2 | 1.14 (0.85–1.54) | 1.04 (0.95–1.13) |
≥80 | NA2 | 1.09 (0.57–2.10) | 0.69 (0.56–0.85) |
Coronary anatomy at registration | |||
Left main | NA3 | 0.73 (0.50–1.05) | 1.36 (1.23–1.50) |
Multivessel† | NA3 | 1.00 | 1.00 |
Limited‡ | NA3 | 1.24 (0.89–1.73) | 1.30 (1.17–1.45) |
Comorbidity at registration | |||
Major conditions§ | 1.90 (1.06–3.41) | 1.15 (0.87–1.51) | 0.81 (0.74–0.89) |
Other conditions|| | 1.00 | 1.00 | 1.00 |
None | 1.08 (0.62–1.89) | 1.05 (0.79–1.39) | 0.77 (0.71–0.84) |
Calendar Period at registration | |||
1992–1996 | 1.31 (0.83–2.07) | 1.03 (0.81–1.30) | 1.40 (1.30–1.51) |
1997–2001 | 1.00 | 1.00 | 1.00 |
2002–2005 | 0.83 (0.48–1.44) | 0.76 (0.57–1.03) | 1.05 (0.97–1.14) |
Institution at registration | |||
1 | NA3 | 1.84 (1.16–2.91) | 0.50 (0.42–0.58) |
2 | NA3 | 1.00 | 1.00 |
3 | NA3 | 1.16 (0.69–1.93) | 0.38 (0.33–0.44) |
4 | NA3 | 0.92 (0.33–2.62) | 1.97 (1.45–2.68) |
Institution from where catheterization was booked | |||
1 | NA3 | 0.63 (0.40–1.01) | 1.28 (1.09–1.51) |
2 | NA3 | 1.00 | 1.00 |
3 | NA3 | 0.97 (0.57–1.66) | 0.99 (0.85–1.15) |
4 | NA3 | 0.86 (0.30–2.47) | 0.73 (0.53–1.00) |
Other | NA3 | 0.26 (0.15–0.45) | 1.36 (1.20–1.54) |
Mode of admission for catheterization | |||
Emergency department | NA3 | 5.94 (4.05–8.71) | 0.83 (0.70–0.98) |
Otherwise¶ | NA3 | 1.00 | 1.00 |
Urgency at admission for catheterization | |||
Elective | NA3 | 1.13 (0.79–1.62) | 0.70 (0.63–0.77) |
Emergency or urgent | NA3 | 1.00 | 1.00 |
Time between catheterization and registration | |||
Per week | 1.02 (0.99–1.04) | NA2 | NA2 |
0–1 weeks | NA2 | 1.07 (0.79–1.45) | 1.17 (1.07–1.29) |
2–3 | NA2 | 1.00 | 1.00 |
4–5 | NA2 | 1.14 (0.74–1.77) | 1.05 (0.92–1.19) |
6–7 | NA2 | 1.08 (0.64–1.82) | 0.83 (0.71–0.97) |
≥8 | NA2 | 0.96 (0.65–1.43) | 0.82 (0.73–0.92) |