You can plot customized networks, obtain network parameters and descriptive statistics of data.


The basic elements of the networks are nodes (chronic health conditions) and edges (coexistence of disease) that connect nodes within the network. Connections are defined according to coexistence to a greater degree than expected by the prevalence of diseases.

Select options.

  1. Select network resolution. Choose the disease classification system:

There is a list of the abbreviations used in all these classification systems in the help part.

Diseases included are an adapted version of the list of chronic conditions based on ICPC-2 codes described by O’Halloran. Conditions with less than 1000 patients were not included.

  1. Select network stratification.

Patient’s age was defined as the mean value between the age when the first and last diagnoses were made within the study period or the age in the middle of the period for the cases without new diagnoses made in the period.

  1. Select Disease subnet. You can visualize global networks or subnets focused on a chronic condition. It is possible to extract subnets for

  1. Risk and/or Protective interactions