Table 1:

Precomputed clinical item (co)-occurrence count statistics

Notation	Definition
n A	Number of instances where item A occurs
n ABt	Number of occurrences where item B follows item A within time threshold t
N A	Number of patients for whom item A occurs
N ABt	Number of patients for whom item B follows A within time t
N	Total number of patients

Lowercase values allow for repeat item counting, while uppercase values represent patient counts that ignore repeat items per patient.