Haemolytic anaemia after childhood Escherichia coli O 157.H7 infection: Are females at increased risk?

P. C. Rowe, W. Walop, H. Lior, A. M. Mackenzie

Research output: Contribution to journalArticle

Abstract

We conducted a 4-year retrospective cohort study to better define the risk of haemolytic anaemia and haemolytic uraemic syndrome (HUS) in children following sporadic gastrointestinal infection with the O 157.H7 serotype of Escherichia coli. Of the 72 children infected with this organism, 9 (12·5%) developed haemolytic anaemia, 6 of whom had HUS. No child in a cohort of 72 age-matched controls with Campylobacter jejuni gastroenteritis developed haemolytic anaemia (P = 0·003). Females had a significantly greater risk of developing haemolytic anaemia after E. coli O 157.H7 infection than did males (8/29 females v. 1/43 males; P = 0·003). In a logistic regression model, female gender emerged as the only statistically significant risk factor for haemolytic anaemia (odds ratio 3·85; 95% confidence interval 1·24–12). These results are consistent with recent reports of a moderate increase in the risk of HUS for females.

Original languageEnglish (US)
Pages (from-to)523-530
Number of pages8
JournalEpidemiology and infection
Volume106
Issue number3
DOIs
StatePublished - Jun 1991
Externally publishedYes

ASJC Scopus subject areas

  • Epidemiology
  • Infectious Diseases

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