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Table 3 An example of grouping several similar endpoints together in different steps

From: Integrating human biomonitoring exposure data into a primary care morbidity database: a feasibility study

Disease (ICPC-code)

Group 1

Group 2

Group 3

K74: Ischemic heart disease with angina

Ischemic heart disease

Ischemic cardiovascular disease

Cardiovascular disease

K75: Acute myocardial infarction

K76: Ischemic heart disease without angina

K89: Temporary cerebral ischemia

Ischemic cerebrovascular disease

K90: Stroke

K92: Atherosclerosis/Disease of peripheral arteries

Peripheral ischemic disease

K77: Heart failure

Heart failure

Heart failure