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Table 1 Number of herpes zoster cases and annual incidencea

From: Epidemiology and long-term disease burden of herpes zoster and postherpetic neuralgia in Taiwan: a population-based, propensity score-matched cohort study

  2004 2005 2006 2007 2008 p-value for trend b
Cases Incidence Cases Incidence Cases Incidence Cases Incidence Cases Incidence
Overall 111,628 5.04 118,349 5.30 118,998 5.29 122,590 5.38 129,525 5.65 < 0.01
Aged 0–49 56,167 3.34 59,855 3.57 57,408 3.44 57,431 3.42 59,901 3.59 < 0.01
Aged 50–64 29,449 9.20 31,795 9.45 33,786 9.55 35,857 9.69 38,710 9.98 < 0.01
Aged 65–74 15,515 12.28 15,563 12.10 15,824 12.10 16,637 12.50 17,376 12.81 < 0.01
Aged 75–84 8938 12.58 9405 12.57 10,120 13.01 10,462 13.05 11,075 13.52 < 0.01
Aged 85+ 1559 11.15 1731 11.39 1860 10.97 2203 11.81 2463 12.41 < 0.01
  1. aCrude incidence rate: cases per 1000 person-year
  2. bTrends in annual incidence were analyzed using Cochrane-Armitage trend tests [27]