Fig. 2.

Flowchart of inclusion and exclusion of patients. A total of 2,043 patients contacted the OOH-PC facility regarding chest pain in 2017. After exclusions, baseline information was completed for 1,803 patients. Upon contact, 23 patients were deemed hemodynamically unstable, resulting in discontinuation of triage and immediate action (i.e. activation of ambulance services). In total, follow-up data could be obtained for 1,471 patients. The allocated urgency levels were available for 1,434 patients. Notes: *Two patients bypassed the triage system entirely and were excluded from the dataset.