Table 5 Average weekly rate of CABG in British Columbia, 1991–2000 and adjusted hazard ratios by registration period
Registration Period | Number of operations | Total waiting time, weeks | Crude Rate, per 100 | SE | RR | 95% CI* |
|---|---|---|---|---|---|---|
| Â | Women | |||||
1991–1992 | 281 | 4094.0 | 6.9 | (0.4) | 1.00 | Referent |
1993–1994 | 260 | 3892.5 | 6.7 | (0.4) | 0.98 | (0.82, 1.17) |
1995–1996 | 313 | 6676.5 | 4.7 | (0.3) | 0.61 | (0.51, 0.72) |
1997–1998 | 293 | 5587.5 | 5.2 | (0.3) | 0.68 | (0.57, 0.81) |
1999–2000 | 240 | 4103.5 | 5.8 | (0.4) | 0.87 | (0.73, 1.05) |
| Â | Men | |||||
1991–1992 | 1211 | 18773.0 | 6.5 | (0.2) | 1.00 | Referent |
1993–1994 | 1370 | 21221.0 | 6.5 | (0.2) | 1.01 | (0.93, 1.09) |
1995–1996 | 1403 | 27353.0 | 5.1 | (0.1) | 0.72 | (0.66, 0.78) |
1997–1998 | 1311 | 24570.0 | 5.3 | (0.1) | 0.79 | (0.72, 0.85) |
1999–2000 | 1251 | 19799.5 | 6.3 | (0.2) | 0.93 | (0.86, 1.01) |