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. 2021 Feb 1;9(2):e23934. doi: 10.2196/23934

Table 2.

The Charlson algorithm types identified in this scoping review.

Charlson condition Algorithm type
Codes only Codes and structured data Codes and free-text data Codes, structured, and free-text data Structured data only Free-text data only Free-text and structured data
Myocardial infarction (n=23, 7.7%)) 7 10 0 4 0 2 0
Congestive heart failure (n=38, 12.7%)) 7 19 2 9 0 0 1
Peripheral vascular disease (n=15, 5.0%) 1 6 1 2 2 2 1
Cerebrovascular disease (n=23, 7.7%) 6 14 0 1 1 1 0
Dementia (n=25, 8.4%) 4 8 4 4 1 1 3
Chronic pulmonary disease (n=31, 10.4%) 3 17 3 3 0 4 1
Rheumatologic disease (n=25, 8.4%) 2 9 2 12 0 0 0
Peptic ulcer disease (n=4, 1.3%) 0 1 1 2 0 0 0
Diabetes (n=56, 18.7%) 6 41 1 6 1 0 1
Diabetes with complications (n=9, 3.0%) 1 8 0 0 0 0 0
Renal disease (n=22, 7.4%) 2 15 1 2 1 0 1
Mild liver disease (n=15, 5.0%) 1 11 0 2 0 0 1
Moderate/severe liver disease (n=7, 2.3%) 0 3 0 3 0 0 1
HIV (n=6, 2.0%) 0 5 0 1 0 0 0
Combined (n=299, 100.0%) 40 167 15 51 6 10 10