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Table 6 Risk adjusted odds ratios (OR) for mortality in ICD-9 and ICD-10 data among AMI patients

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

  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
Variables OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI)
Age             
20 – 49 1.0 (1.0–1.0) 1.0 (1.0–1.0) 1.0 (1.0–1.0) 1.0 (1.0–1.0) 1.0 (1.0–1.0) 1.0 (1.0–1.0)
50 – 64 2.1 (1.4–3.2) 1.1 (0.7–1.8) 2.0 (1.5–2.8) 1.5 (1.0–2.2) 2.1 (1.6–2.8) 1.7 (1.3–2.4)
65 – 74 4.4 (2.9–6.7) 2.3 (1.5–3.6) 4.3 (3.1–6.1) 2.8 (1.9–4.2) 4.6 (3.5–5.9) 3.6 (2.7–5.0)
>=75 11.4 (7.6–17.14) 7.5 (4.9–11.6) 10.1 (7.2–14.1) 8.0 (5.5–11.7) 11.6 (9.0–15.0) 11.0 (8.1–14.9)
Gender             
Female 1.0 (1.0–1.0) 1.0 (1.0–1.0) 1.0 (1.0–1.0) 1.0 (1.0–1.0) 1.0 (1.0–1.0) 1.0 (1.0–1.0)
Male 0.7 (0.7–0.8) 1.0 (0.9–1.2) 0.8 (0.8–0.9) 1.1 (1.0–1.2) 0.9 (0.8–1.0) 1.0 (0.9–1.1)
Comorbidities             
Shock 10.0 (8.4–11.9) 10.4 (8.1–13.4) 8.1 (6.9–9.6) 7.6 (6.0–9.7) 4.8 (4.1–5.7) 4.2 (3.3–5.4)
Diabetes with Complications 1.5 (1.1–2.0) 1.4 (1.0–1.9) 1.5 (1.1–1.9) 1.2 (0.9–1.5) 2.0 (1.6–2.5) 1.5 (1.2–1.9)
Congestive Heart Failure 2.1 (1.9–2.3) 2.2 (1.9–2.4) 2.1 (2.0–2.3) 2.3 (2.1–2.6) 2.7 (2.5–2.9) 2.8 (2.5–3.0)
Cancer 2.2 (1.7–2.8) 2.4 (1.8–3.2) 2.1 (1.7–2.7) 3.1 (2.4–4.1) 3.9 (3.2–4.8) 5.8 (4.6–7.4)
Cerebrovascular disease 3.0 (2.6–3.6) 3.5 (2.8–4.5) 2.6 (2.3–3.1) 3.1 (2.5–3.9) 2.6 (2.2–3.0) 2.6 (2.1–3.2)
Pulmonary Edema 2.6 (1.8–3.8) 2.5 (1.5–4.1) 2.5 (1.7–3.6) 2.9 (1.8–4.5) 2.8 (2.0–3.9) 3.4 (2.2–5.1)
Acute Renal Failure 5.1 (4.2–6.2) 3.1 (2.6–3.8) 4.2 (3.5–5.0) 2.7 (2.3–3.3) 3.5 (2.9–4.3) 2.4 (2.0–2.8)
Chronic Renal Failure 1.9 (1.6–2.4) 1.4 (1.1–1.8) 1.7 (1.4–2.1) 1.7 (1.4–2.1) 2.1 (1.8–2.5) 2.2 (1.8–2.6)
Cardiac Dysrhythmias 2.0 (1.9–2.3) 1.8 (1.6–2.1) 1.8 (1.6–1.9) 1.6 (1.4–1.8) 1.6 (1.5–1.8) 1.5 (1.3–1.6)
Constant 0.0 (0.0–0.0) 0.0 (0.0–0.0) 0.0 (0.0–0.0) 0.0 (0.0–0.0) 0.0 (0.0–0.0) 0.0 (0.0–0.0)
C-Statistic (AUC) 0.841   0.826   0.816   0.809   0.815   0.812  
Brier Score 0.062   0.055   0.062   0.056   0.074   0.072  
R-square 0.224   0.201   0.195   0.182   0.207   0.207  
Number of patients 29610   20251   29610   20251   29610   20251  
  1. Note: All Odds Ratios (OR) adjust for age, sex, shock, diabetes with complications, congestive heart failure, cancer, cerebrovascular disease, pulmonary edema, acute renal failure, chronic renal failure, and cardiac dysrhythmias.