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Table 4 Multivariate logistic regression analysis of severe pertussis associated with death

From: Risk factors associated with death in infants <120 days old with severe pertussis: a case-control study

  adjusted OR 95%CI P Value
apnea 23.722 2.796–201.260 0.004
Leukocytosis 63.708 3.574–1135.674 0.005
Pulmonary hypertension 26.109 1.800–378.809 0.017
  1. Abbreviations: CI confidence interval, OR odds ratio
  2. Leukocytosis was defined as WBC count ≥30 × 109 /L