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Table 5 Mortality by comorbidities among AMI patients from the BC provincial database (N = 49,861)

From: ICD-10 coding algorithms for defining comorbidities of acute myocardial infarction

Variables ICD-9 Data
In-hospital
ICD-10 Data
In-hospital
ICD-9 Data
30-day
ICD-10 Data
30-day
ICD-9 Data
1 Year
ICD-10 Data
1 Year
  N % of 29610 N % of 20251 N % of 29610 N % of 20251 N % of 29610 N % of 20251
Overall 2384 8.1 1386 6.8 2943 9.9 1824 9.0 4899 16.5 3311 16.3
Age             
20 – 49 26 0.9 23 1.2 38 1.3 29 1.5 64 2.3 46 2.4
50 – 64 194 2.4 100 1.8 260 3.2 152 2.8 449 5.5 271 4.9
65 – 74 501 6.1 203 4.2 659 8.1 292 6.1 1108 13.6 548 11.4
>=75 1663 15.9 1060 13.1 1986 18.9 1351 16.8 3278 31.3 2446 30.3
Gender             
Female 1136 11.6 580 8.3 1343 13.7 754 10.8 2139 21.8 1401 20.1
Male 1248 6.3 806 6.1 1600 8.1 1070 8.1 2760 13.9 1910 14.4
Comorbidities             
Shock 394 52.6 173 47.3 407 54.3 178 48.6 438 58.5 194 53.0
Diabetes with Complications 80 15.7 71 13.3 94 18.4 83 15.5 167 32.7 166 31.0
Congestive Heart Failure 1205 19.1 665 16.8 1435 22.7 856 21.6 2378 37.6 1501 37.9
Cancer 91 17.8 70 19.3 109 21.3 103 28.5 230 44.9 202 55.8
Cerebrovascular disease 267 26.0 130 25.5 293 28.5 149 29.2 424 41.3 209 41.0
Pulmonary Edema 50 26.6 25 21.0 56 29.8 33 27.7 81 43.1 53 44.5
Acute Renal Failure 298 47.2 224 31.1 307 48.6 253 35.1 380 60.1 358 49.7
Chronic Renal Failure 167 21.3 122 17.6 184 23.5 167 24.0 310 39.6 308 44.3
Cardiac Dysrhythmias 940 17.0 506 14.5 1057 19.1 596 17.1 1588 28.7 972 27.9
  1. Note: Both ICD-9 and ICD-10 data excluded all patients who were discharged on the same day of admission or the following day