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Table 4 Most common terms extracted by the freetext matching algorithm from texts associated with death in 2001

From: The freetext matching algorithm: a computer program to extract diagnoses and causes of death from unstructured text in electronic health records

Dictionary

Term

Percentage

OXMIS

BRONCHOPNEUMONIA

9.9

Read

Acute myocardial infarction

4.8

Read

[M]Carcinomatosis

4.0

Read

Ischaemic heart disease

3.4

Read

CVA unspecified

3.1

OXMIS

PNEUMONIA

2.5

OXMIS

UNKNOWN CAUSE

2.5

Read

Congestive cardiac failure

1.7

Read

Septicaemia

1.7

OXMIS

CORONARY ARTERY ATHEROMA

1.5

Read

Lung cancer

1.5

Read

[X] Unspecified dementia

1.5

OXMIS

CARCINOMA

1.3

Read

Chronic obstructive pulmonary disease

1.3

OXMIS

HYPERTENSION

1.3

Read

Cardiac arrest

1.1

Read

Deep vein thrombosis

1.1

Read

Left ventricular failure

1.1

Read

Sepsis

1.1

Read

Cerebrovascular disease

1.0