Skip to main content

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.