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Volume 30, Number 1—January 2024
Research

Population-Based Study of Pertussis Incidence and Risk Factors among Persons >50 Years of Age, Australia

Rodney Pearce, Jing ChenComments to Author , Ken L. Chin, Adrienne Guignard, Leah-Anne Latorre, C. Raina MacIntyre, Brittany Schoeninger, and Sumitra Shantakumar
Author affiliations: Medical HQ Family Practice, Glynde, South Australia, Australia (R. Pearce); GSK, Singapore (J. Chen, S. Shantakumar); IQVIA, Melbourne, Victoria, Australia (K.L. Chin); Monash University, Melbourne (K.L. Chin); GSK, Wavre, Belgium (A. Guignard); GSK, Melbourne (L.-A. Latorre); University of New South Wales, Sydney, New South Wales, Australia (C.R. MacIntyre); IQVIA, Sydney (B. Schoeninger)

Main Article

Table 3

Predictors of pertussis in persons ≥50 years of age from conditional multivariable logistic regression models, Australia*

Variables aOR (95%CI)
Prior prescription of antibiotics for cough 7.00 (4.21–11.64)
Asthma 2.94 (1.71–5.04)
COPD 1.88 (1.23–2.86)
Diabetes mellitus 1.47 (0.68–2.27)
Use of ACEi-ARB 1.37 (1.00–1.85)
History of pertussis immunization† 1.03 (0.62–1.69)
History of influenza vaccination 0.38 (0.26–0.55)

*Variables were defined as those at baseline (i.e., restricted to those recorded during the study period or until the time of pertussis diagnosis). In this analysis, patients with missing data were excluded. ACEi-ARB, angiotensin-converting enzyme inhibitors–angiotensin receptor blockers; COPD, chronic obstructive pulmonary disease. †History of pertussis immunization was defined as the presence of pertussis immunization record throughout the study period, as recorded in the Australia general practitioner electronic medical records database.

Main Article

Page created: November 30, 2023
Page updated: December 21, 2023
Page reviewed: December 21, 2023
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