Table 2 Validation Results of Diagnostic Codes Accuracy
Algorithm | Number of diagnostic codes, n | Number of acute cerebrovascular diseases, n | Proportion, % |
|---|---|---|---|
“Suspected” diagnostic code and the use of brain imaging | |||
All | 100 | 7 | 7 |
“Definite” diagnostic code | |||
All | 100 | 22 | 22 |
Primary | 7 | 4 | 57 |
Secondary or others | 93 | 18 | 19 |
“Definite” diagnostic code and the use of brain imaging | |||
All | 100 | 51 | 51 |
Primary | 7 | 4 | 57 |
Secondary or others | 93 | 47 | 51 |
“Definite” diagnostic code and the use of brain imaging within 30 days | |||
All | 100 | 84 | 84 |
Primary | 8 | 6 | 75 |
Secondary or others | 92 | 78 | 85 |
“Definite” diagnostic code and the use of brain imaging within 1 day | |||
All | 100 | 90 | 90 |
Primary | 7 | 6 | 86 |
Secondary or others | 93 | 84 | 90 |