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
| |
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) | ||||||||||
*218 patients had unknown values for urgency at decision.
‡Congestive heart failure, diabetes mellitus, chronic obstructive pulmonary disease, rheumatoid arthritis, or cancer.
†Peripheral vascular disease, cerebrovascular disease, dementia, peptic ulcer disease, hemiplegia, renal disease, or liver disease.
§Two or three-vessel disease with stenosis of the proximal left anterior descending (PLAD) artery.
∥Two-vessel disease with no stenosis of the PLAD artery or one-vessel disease with stenosis of the PLAD artery.