Weather patterns and Legionnaires' disease: A meteorological study

Katherine D. Ricketts*, Andre Charlett, D. Gelb, C. Lane, J. V. Lee, C. A. Joseph

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

This study examined the impact of meteorological conditions on sporadic, community-acquired cases of Legionnaires' disease in England and Wales (2003-2006), with reference to the 2006 increase in cases. A case-crossover methodology compared each case with self-controlled data using a conditional logistic regression analysis. Effect modification by quarter and year was explored. In total, 674 cases were entered into the dataset and two meteorological variables were selected for study based on preliminary analyses: relative humidity during a case's incubation period, and temperature during the 10-14 weeks preceding onset. For the quarter July-September there was strong evidence to suggest a year, humidity and temperature interaction (Wald χ2 = 30·59, 3 d.f., P < 0·0001). These findings have implications for future case numbers and resource requirements.

Original languageEnglish
Pages (from-to)1003-1012
Number of pages10
JournalEpidemiology and Infection
Volume137
Issue number7
DOIs
Publication statusPublished - 2009

Keywords

  • Legionnaires' disease
  • Meteorology
  • Surveillance

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