Table 2—

Geometric means of immunoglobulin- (Ig)G and IgA antibodies measured by enzyme immunoassay (EIA) against the heat shock protein (HSP) 60 of Chlamydia pneumoniae and human in asthmatic subjects, asymptomatic controls and bronchitis controls

Asthmatic subjectsAsymptomatic controlsBronchitis controls
Subjects n244517
C. pneumoniae Hsp60 EIU
Human Hsp60, EIU
  • EIU: enzyme immunoassay unit

  • optical density multiplied by 1,000

  • p=0.03 versus asymptomatic controls, p=0.01 versus all controls (asymptomatic and bronchitis) using analysis of variance after log transformation of EIA units with age, sex and (ever-) smoking as covariates