Figure 1

Flow chart of in- and excluded admissions in the medical record research.

MR = medical record.

* The included admissions concerned 296 individual patients (some patients were registered more than once)

** Not included because it was not possible to inform these patients (or their relatives)

*** Included at first but excluded during the study because there was no mention in MR of a varicella episode (or only mention of a suspicion that was withdrawn after further investigation).