| Trends in Surgery for Ischaemic Heart Disease | ||||||||
| Year | Isolated CABG | CABG + Valve | Other for IHD | IHD Surgery | ||||
| Number | % Mortality | Number | % Mortality | Number | % Mortality | Number | % Mortality | |
| 1977 | 2297 | 6.4 | 584 | 16.8 | 159 | 23.9 | 3040 | 9.3 |
| 1978 | 2653 | 5.1 | 537 | 16.8 | 155 | 16.8 | 3345 | 7.5 |
| 1979 | 2918 | 6.1 | 620 | 16.0 | 150 | 21.3 | 3688 | 8.4 |
| 1980 | 4057 | 3.7 | 802 | 15.1 | 152 | 20.4 | 5011 | 6.1 |
| 1981 | 5130 | 3.7 | 839 | 14.5 | 154 | 24.7 | 6123 | 5.8 |
| 1982 | 6008 | 3.2 | 1224 | 12.4 | 171 | 22.8 | 7403 | 5.2 |
| 1983 | 8332 | 3.4 | 1111 | 11.3 | 174 | 29.3 | 9617 | 4.8 |
| 1984 | 9433 | 2.6 | 1120 | 9.9 | 170 | 19.4 | 10723 | 3.6 |
| 1985 | 10667 | 2.7 | 1133 | 10.0 | 220 | 25.0 | 12020 | 3.8 |
| 1986 | 10767 | 2.6 | 1243 | 9.9 | 244 | 25.8 | 12254 | 3.8 |
| 1987 | 11521 | 2.5 | 1299 | 10.0 | 283 | 20.5 | 13103 | 3.6 |
| 1988 | 11113 | 2.7 | 1306 | 9.0 | 235 | 26.8 | 12654 | 3.8 |
| 1989 | 12648 | 2.5 | 1342 | 8.6 | 197 | 25.4 | 14187 | 3.4 |
| 1990 | 14431 | 2.5 | 1536 | 9.7 | 178 | 24.2 | 16145 | 3.7 |
| 1991 | 15659 | 3.0 | 1710 | 9.5 | 169 | 31.4 | 17538 | 3.9 |
| 1992 | 19241 | 2.7 | 1963 | 12.8 | 194 | 32.0 | 21398 | 3.5 |
| 1993/4 | 21031 | 2.6 | 2037 | 9.2 | 206 | 34.0 | 23274 | 3.4 |
| 1994/5 | 22056 | 2.7 | 2282 | 8.3 | 175 | 33.0 | 24513 | 3.5 |
| 1995/6 | 22475 | 3.7 | 2362 | 9.1 | 123 | 33.0 | 24960 | 4.3 |
| 1996/7 | 22160 | 3.1 | 2078 | 8.0 | 361 | 23.8 | 26411 | 3.8 |
| 1997/8 | 25639 | 2.6 | 2433 | 8.3 | 427 | 19.4 | 28499 | 3.3 |
| 1998/9 | 25083 | 2.3 | 2568 | 7.9 | 613 | 17.6 | 28264 | 3.1 |
| 1999/00 | 24733 | 2.2 | 2641 | 7.8 | 462 | 17.1 | 27836 | 3.0 |
| 1996/7 data were not received from the Freeman Hospital in Newcastle or St Thomas' Hospital in London. Therefore their data has been excluded from this table. Assuming previous year's activity for these hospitals the total CABG activity rises to 23791 for 1996/7 | ||||||||
