Skip to main content

Advertisement

Table 1 Characteristics of 12,030 wait-list registered patients, who had decision for coronary artery bypass grafting in British Columbia 1992–2005, by calendar period of decision

From: Evaluation of supply-side initiatives to improve access to coronary bypass surgery

  All periods 1992–1993 1994–1995 1996–1997 1998–1999 2000–2001 2002–2003 2004–2005
Characteristic (n=12030) (n=1726) (n=1793) (n=1862) (n=1610) (n=1791) (n=1889) (n=1359)
Age group at decision (years)
<50 761 (6.3) 140 (8.1) 147 (8.2) 118 (6.3) 99 (6.1) 113 (6.3) 85 (4.5) 59 (4.3)
50–59 2559 (21.3) 362 (21.0) 390 (21.8) 367 (19.7) 337 (20.9) 419 (23.4) 426 (22.6) 258 (19.0)
60–69 4468 (37.1) 703 (40.7) 655 (36.5) 717 (38.5) 551 (34.2) 619 (34.6) 717 (38.0) 506 (37.2)
70–79 3786 (31.5) 500 (29.0) 542 (30.2) 602 (32.3) 567 (35.2) 573 (32.0) 551 (29.2) 451 (33.2)
≥80 456 (3.8) 21 (1.2) 59 (3.3) 58 (3.1) 56 (3.5) 67 (3.7) 110 (5.8) 85 (6.3)
Sex
Men 9981 (83.0) 1425 (82.6) 1487 (82.9) 1500 (80.6) 1334 (82.9) 1502 (83.9) 1595 (84.4) 1138 (83.7)
Women 2049 (17.0) 301 (17.4) 306 (17.1) 362 (19.4) 276 (17.1) 289 (16.1) 294 (15.6) 221 (16.3)
Urgency at decision
Urgent 739 (6.1) 113 (6.5) 162 (9.0) 177 (9.5) 66 (4.1) 72 (4.0) 87 (4.6) 62 (4.6)
Semiurgent 8769 (72.9) 1331 (77.1) 1240 (69.2) 1295 (69.5) 1107 (68.8) 1315 (73.4) 1401 (74.2) 1080 (79.5)
Nonurgent 2304 (19.2) 269 (15.6) 375 (20.9) 369 (19.8) 432 (26.8) 390 (21.8) 354 (18.7) 115 (8.5)
1 2668 (22.2) 328 (19.0) 356 (19.9) 378 (20.3) 361 (22.4) 449 (25.1) 533 (28.2) 263 (19.4)
2 3575 (29.7) 724 (41.9) 589 (32.8) 467 (25.1) 555 (34.5) 475 (26.5) 409 (21.7) 356 (26.2)
3 2914 (24.2) 438 (25.4) 429 (23.9) 492 (26.4) 265 (16.5) 401 (22.4) 472 (25.0) 417 (30.7)
4 2873 (23.9) 236 (13.7) 419 (23.4) 525 (28.2) 429 (26.6) 466 (26.0) 475 (25.1) 323 (23.8)
Comorbidities at decision
Major conditions 2901 (24.1) 373 (21.6) 386 (21.5) 418 (22.4) 368 (22.9) 452 (25.2) 518 (27.4) 386 (28.4)
Other conditions 2856 (23.7) 520 (30.1) 496 (27.7) 526 (28.2) 384 (23.9) 379 (21.2) 354 (18.7) 197 (14.5)
None 6273 (52.1) 833 (48.3) 911 (50.8) 918 (49.3) 858 (53.3) 960 (53.6) 1017 (53.8) 776 (57.1)
Coronary anatomy affected at decision
Left main 1780 (14.8) 251 (14.5) 287 (16.0) 299 (16.1) 256 (15.9) 265 (14.8) 284 (15.0) 138 (10.2)
Multivessel§ 8715 (72.4) 1361 (78.9) 1407 (78.5) 1418 (76.2) 1202 (74.7) 1320 (73.7) 1274 (67.4) 733 (53.9)
Limited 1535 (12.8) 114 (6.6) 99 (5.5) 145 (7.8) 152 (9.4) 206 (11.5) 331 (17.5) 488 (35.9)
Time between catheterization and decision for surgical revascularization (weeks)
0–1 6651 (55.3) 726 (42.1) 932 (52.0) 1005 (54.0) 912 (56.6) 1093 (61.0) 1236 (65.4) 747 (55.0)
2–3 2066 (17.2) 422 (24.4) 377 (21.0) 350 (18.8) 269 (16.7) 245 (13.7) 215 (11.4) 188 (13.8)
4–5 1041 (8.7) 209 (12.1) 174 (9.7) 157 (8.4) 150 (9.3) 139 (7.8) 102 (5.4) 110 (8.1)
6–7 642 (5.3) 122 (7.1) 92 (5.1) 123 (6.6) 74 (4.6) 84 (4.7) 66 (3.5) 81 (6.0)
≥8 1630 (13.5) 247 (14.3) 218 (12.2) 227 (12.2) 205 (12.7) 230 (12.8) 270 (14.3) 233 (17.1)
  1. *218 patients had unknown values for urgency at decision.
  2. Congestive heart failure, diabetes mellitus, chronic obstructive pulmonary disease, rheumatoid arthritis, or cancer.
  3. Peripheral vascular disease, cerebrovascular disease, dementia, peptic ulcer disease, hemiplegia, renal disease, or liver disease.
  4. §Two or three-vessel disease with stenosis of the proximal left anterior descending (PLAD) artery.
  5. Two-vessel disease with no stenosis of the PLAD artery or one-vessel disease with stenosis of the PLAD artery.