Deaths from chickenpox in England and Wales 1995-7: analysis of routine mortality data.

OBJECTIVE To evaluate the epidemiology and impact of mortality from chickenpox in England and Wales. DESIGN Review of death certificates from the Office for National Statistics on which codes for "chickenpox" or "varicella" were mentioned. Further information ascertained from certifying physician. PARTICIPANTS Those certified as having died from chickenpox in England and Wales, 1995-7. MAIN OUTCOME MEASURES Diagnosis and age and sex distributions of deaths from chickenpox. RESULTS On average, 25 people a year die from chickenpox. Overall case fatality was 9.22 per 100 000 consultations for chickenpox. Adults accounted for 81% of deaths and 19% of consultations. Deaths were twice as common in men as in women. More of those who died were born outside United Kingdom than expected (12% v 4%). CONCLUSIONS Chickenpox is not a mild disease. Deaths in adults are increasing, both in number and proportion.