Table 4

Duration of postherpetic neuralgia (sorted by study design)

CountryAuthorMethodPopulationDuration of PHN
USARedaA prospective cohort study of 8-year follow-up14 patients with PHN with a median age of 65 yearsUp to 4 years: 14%
CanadaWatsonA prospective cohort study of 11-year follow-up156 patients with PHN with a median age of 71 years1–11 years: 56%
UKHope-SimpsonA prospective cohort study of 26-year follow-up46 patients with PHN ≥60 years of age1–2 years: 7%2–10 years: 22%
UKMcKendrickA prospective cohort study of 9-year follow-up158 patients with HZ ≥60 years of age21% of patients with HZ had pain for >8 years
IcelandHelgasonA prospective cohort study of 7-year follow-up23 patients with PHN ≥60 years of age1–7 years: 35%>7 years: 17%
FranceBouhassiraA prospective cohort study of 1-year follow-up127 patients with PHN ≥50 years of age>1 year: 50%
USAOsterA cross-sectional study385 patients with PHN with a mean age of 77 years1–2 years: 21%2 to >10 years: 46%
UKBowsherA cross-sectional study39 patients with PHN with a mean age of 66 years1–2 years: 21%2 to >10 years: 33%
6 European countriesvan SeventerA cross-sectional study84 patients with PHN with a mean age of 71 years>1 years: 45%
  • HZ, herpes zoster; PHN, postherpetic neuralgia.