Introduction
Methods
Data source and study population
Clinical outcomes | Diagnostic codes |
---|---|
Myocardial infarction | I21, I22 |
Gastrointestinal bleeding | K22.6, K25.0, K25.2, K25.4, K25.6, K26.0, K26.2, K26.4, K26.6, K27.0, K27.2, K27.4, K27.6, K28.0, K28.2, K28.4, K28.6, K29.0, K62.5, K92.0, K92.1, K92.2 |
Ischemic stroke | I63, I64 |
Intracranial hemorrhage | I60, I61, I62 |
The validation of diagnosis for acute myocardial infarction and gastrointestinal bleeding
The validation of diagnosis for stroke and intracranial hemorrhage
Statistical analysis
Results
Acute myocardial infarction
Total | True | False | PPV (%) | |
---|---|---|---|---|
Hospitalization + primary diagnostic code | 200 (100) | 184 (92.0) | 16 (8.0) | 92.0 |
Gastrointestinal bleeding
GI bleeding | Total | True | False | PPV (%) | Sensitivity (%) | Specificity (%) |
---|---|---|---|---|---|---|
Hospitalization + primary diagnostic code | 200 (100) | 184 (92.0) | 16 (8.0) | 92.0 | ||
Hospitalization + primary diagnostic code + RBC transfusion | 156 (100) | 143 (91.7) | 13 (8.3) | 91.7 | 77.7 | 18.8 |
Stroke
Ischemic stroke | Total | True | False | PPV (%) | Sensitivity (%) | Specificity (%) |
---|---|---|---|---|---|---|
Hospitalization + primary diagnostic code | 200 (100) | 181 (90.5) | 19 (9.5) | 90.5 | – | – |
Hospitalization + primary diagnostic code + imaging diagnosisa | 179 (100) | 165 (92.2) | 14 (7.8) | 92.2 | 91.2 | 26.3 |
Hospitalization + primary diagnostic code + prescriptionb | 181 (100) | 169 (93.4) | 12 (6.6) | 93.4 | 93.4 | 36.8 |
Hospitalization (over 3 days) + primary diagnostic code + imaging diagnosis | 170 (100) | 157 (92.4) | 13 (7.6) | 92.4 | 86.7 | 31.6 |
Hospitalization (over 3 days) + primary diagnostic code + prescription | 173 (100) | 163 (94.2) | 10 (5.8) | 94.2 | 90.1 | 47.4 |
Intracranial hemorrhage
Intracranial hemorrhage | Total | True | False | PPV (%) | Sensitivity (%) | Specificity (%) |
---|---|---|---|---|---|---|
Hospitalization + primary diagnostic code | 200 (100) | 143 (71.5) | 57 (28.5) | 71.5 | – | – |
Hospitalization + primary diagnostic code + imaging diagnosisa | 167 (100) | 136 (81.4) | 31 (18.6) | 81.4 | 95.1 | 45.6 |
Hospitalization + primary diagnostic code + prescriptionb | 179 (100) | 129 (72.1) | 50 (27.9) | 72.1 | 90.2 | 12.3 |
Hospitalization (over 3 days) + primary diagnostic code + imaging diagnosis | 153 (100) | 127 (83.0) | 26 (17.0) | 83.0 | 88.8 | 54.4 |
Hospitalization (over 3 days) + primary diagnostic code + prescription | 142 (100) | 118 (83.1) | 24 (16.9) | 83.1 | 82.5 | 57.9 |