Year | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009/2010 |
---|---|---|---|---|---|---|---|---|---|---|
Number of surgery episodes | 2283 | 2925 | 3386 | 3697 | 3505 | 3655 | 3802 | 3733 | 3775 | 3939* |
Missing outcome† | 227 (9%) | 193 (6.2%) | 61 (1.8%) | 16 (0.4%) | 11 (0.3%) | 0 | 7 (0.2%) | 8 (0.2%) | 9 (0.2%) | 138 (2.3%) |
Mortality % (95% CI) | 4.3 (3.6 to 5.1) | 3.6 (2.9 to 4.3) | 3.7 (3.3 to 4.4) | 3.3 (2.7 to 3.8) | 2.7 (2.2 to 3.3) | 3.3 (2.7 to 3.8) | 2.9 (2.4 to 3.5) | 3.0 (2.5 to 3.6) | 3.4 (2.8 to 3.9) | 2.6 (2.2 to 3.0) |
High-risk diagnoses (%)‡ | 152 (6.7) | 202 (6.9) | 227 (6.7) | 278 (7.5) | 263 (7.5) | 305 (8.3) | 363 (9.6) | 376 (10.1) | 367 (9.7) | 556 (9.5) |
Low weight (%)§ | 161 (8.1) | 203 (7.7) | 329 (10.2) | 281 (8.2) | 321 (9.7) | 354 (10.3) | 381 (10.3) | 329 (9.0) | 405 (11.0) | 592 (10.4) |
Functionally univentricular heart (%) | 302 (13.2) | 377 (12.9) | 432 (12.8) | 521 (14.1) | 497 (14.2) | 538 (14.7) | 603 (15.9) | 629 (16.9) | 632 (16.7) | 961 (16.3) |
Risk band 4 (%) | 139 (6.8) | 166 (6.4) | 190 (6.4) | 215 (6.6) | 214 (6.8) | 213 (6.8) | 258 (7.8) | 256 (8.3) | 222 (7.3) | 272 (7.2) |
Children (%) | 929 (40.7) | 1233 (42.2) | 1458 (43.1) | 1654 (44.7) | 1466 (41.8) | 1494 (40.9) | 1553 (40.9) | 1591 (42.6) | 1521 (40.3) | 2341 (39.8) |
Infants (%) | 813 (35.6) | 1055 (36.1) | 1166 (34.4) | 1279 (34.6) | 1292 (36.9) | 1429 (39.0) | 1447 (38.0) | 1359 (36.4) | 1463 (38.8) | 2309 (39.2) |
Neonates (%) | 541 (23.7) | 637 (21.8) | 762 (22.5) | 764 (20.7) | 747 (21.3) | 732 (20.1) | 802 (21.1) | 783 (21.0) | 791 (21.0) | 1230 (21.0) |
*Given that the year 2010 contained a truncated amount of data, as stated in Methods, the years 2009/2010 were combined for analyses. This cell relates to 2009 only, whereas data in lower cells relate to 2009/2010.
†Records with missing outcome listed in this row are excluded from the rest of the analyses.
‡Overall there were 1270 records with a missing diagnosis that were excluded from this row of data.
§Overall there were 1836 records with missing weight that were excluded from this row of data.