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Published on: July 1, 2018
Risk factors for invasive meningococcal disease in southern Queensland, 2000-2001
B J McCall1, A S Neill, M M Young
1Brisbane Southside Public Health Unit, Brisbane, Australia. brad_mccall@health.qld.gov.au
Aim:
The aim of this paper is to describe the risk factors for invasive meningococcal disease (IMD) in southern Queensland.
Methods:
A case control study during the calendar years 2000-2001 was undertaken.
Results:
Eighty-four laboratory-confirmed cases of IMD were notified. Four patients died and were excluded from the present study. Sixty-two (78%) eligible cases and 79 controls selected from the same age group and medical practice as cases, were interviewed. Univariate analysis found that IMD was associated with sharing bedrooms with two or more people (odds ratio (OR) 4.3; 95% confidence interval (CI) 1.2-17.0, P = 0.01), any exposure to tobacco smoke (smoker or passive exposure; OR 2.3; 95% CI 1.1-4.8, P = 0.02), passive exposure to tobacco smoke (OR 2.4; 95% CI 1.0-5.6, P = 0.03) and recent upper respiratory tract infection (OR 1.9, 95% CI 0.9-4.1, P = 0.06). Children who were breast-fed were less likely to develop IMD (OR 0.3; 95% CI 0.1-1.1, P = 0.04). Attendance at a childcare centre was not associated with an increased risk of IMD. In multivariate analysis, IMD was associated with children under 6 years of age who shared a bedroom with two or more people (OR 7.4; 95% CI 1.5-36.1, P = 0.01) or who had a primary carer who smoked (OR 9.1; 95% CI 2.1-39.9, P = 0.003).
Discussion:
This is the second Australian study that identifies links between risk of IMD and exposure to cigarette smoke. The risk of IMD in young children could be further reduced if primary caregivers did not smoke. This information may contribute a new perspective to antismoking campaigns.
Insights
Invasive meningococcal disease (IMD) risk factors in Queensland include sharing bedrooms and exposure to tobacco smoke. Preventing primary caregiver smoking can significantly reduce IMD risk in young children.
Area of Science:
- Epidemiology
- Public Health
- Infectious Diseases
Background:
- Invasive meningococcal disease (IMD) remains a significant public health concern.
- Identifying modifiable risk factors is crucial for targeted prevention strategies.
Purpose of the Study:
- To investigate risk factors associated with invasive meningococcal disease (IMD) in southern Queensland.
- To inform public health interventions and antismoking campaigns.
Main Methods:
- A case-control study was conducted between 2000 and 2001.
- Eighty-four laboratory-confirmed IMD cases and 79 controls were interviewed.
- Statistical analyses included univariate and multivariate assessments of risk factors.
Main Results:
- Sharing bedrooms with two or more people was associated with increased IMD risk (OR 4.3).
- Exposure to tobacco smoke, including passive exposure, significantly increased IMD risk (OR 2.3-2.4).
- Breastfeeding showed a protective effect (OR 0.3), while childcare attendance was not a significant risk factor.
Conclusions:
- This study reinforces the link between cigarette smoke exposure and IMD risk in Australia.
- Reducing primary caregiver smoking presents a key opportunity to lower IMD incidence in young children.
- Findings can enhance antismoking campaigns with specific data on IMD prevention.
Related Concept Videos
Bacterial Meningitis
Viral Meningitis
Cryptococcal Meningitis
Amebiasis
Bacterial Meningitis I: Introduction
Bacterial Meningitis II: Pathophysiology

