Table 5.
Outcomes of patients identified as HF using various approaches from a cohort of 200 patients with at least one ICD code for HF.
| Outcomes | Gold standard HF (n=145) | Model (NLP+ML) classified HF (n=143) | HF diagnosed using ICD codes | ||
|---|---|---|---|---|---|
| One principal hospital discharge diagnosis of HF (n=31) | Two primary outpatient encounter diagnosis of HF (n=89) | Either one inpatient or two outpatient diagnosis of HF (n=91) | |||
| All‐cause mortality | |||||
| 1 Year | 23 (15.9%) | 22 (15.4%) | 1 (3.2%) | 11 (12.4%) | 11 (12.1%) |
| 5 Years | 82 (56.6%) | 76 (53.1%) | 18 (58.1%) | 44 (49.4%) | 46 (50.5%) |
| HF Hospitalization | |||||
| 1 Year | 13 (9.0%) | 11 (7.7%) | 9 (29.0%) | 11 (12.4%) | 11 (12.1%) |
| 5 Years | 34 (23.4%) | 31 (21.7%) | 21 (67.7%) | 27 (30.3%) | 28 (30.8%) |
| All‐cause hospitalization | |||||
| 1 Year | 64 (44.1%) | 71 (49.7%) | 17 (54.8%) | 44 (49.4%) | 45 (49.5%) |
| 5 Years | 101 (69.7%) | 104 (72.7%) | 26 (83.9%) | 68 (76.4%) | 70 (76.9%) |
HF, heart failure; ICD, International Classification of Diseases; ML, machine learning; NLP, natural language processing.