Extended Data Table 1 Cohort definitions

From: Varicella-zoster virus reactivation and the risk of dementia

  1. Individuals were included in a specific cohort if they had the respective cohort-defining event in the records and fulfilled the specific inclusion criteria. Index date was defined as the first record of the cohort-defining event except for recurrent HZ, for which the date of the second HZ episode was used.
  2. HZ, herpes zoster; PPSV23, 23-valent pneumococcal polysaccharide vaccine; RZV, recombinant zoster vaccine; ZVL, live-attenuated zoster vaccine.
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