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Incidence of pediatric acute mastoiditis: 1997-2006
Cedric V Pritchett1, Marc C Thorne
1Division of Pediatric Otolaryngology, Department of Otolaryngology, C. S. Mott Children's Hospital, University of Michigan, Ann Arbor, MI 48109, USA.
Insights
The incidence of acute mastoiditis in children in the U.S. remained stable from 1997 to 2006. This study suggests that changes in hospital factors, not a true increase in cases, may explain perceived trends in acute mastoiditis.
Area of Science:
- Pediatric infectious diseases
- Epidemiology
- Otolaryngology
Background:
- Acute mastoiditis is a serious complication of otitis media in children.
- Conflicting reports exist regarding trends in acute mastoiditis incidence.
- Understanding incidence patterns is crucial for public health and resource allocation.
Purpose of the Study:
- To determine the incidence of acute mastoiditis in U.S. children from 1997 to 2006.
- To investigate factors contributing to perceived changes in incidence.
- To provide population-level data on acute mastoiditis trends.
Main Methods:
- Analysis of the Healthcare Costs and Utilization Project-Kids' Inpatient Database (HCUP-KID).
- Examination of nationally weighted estimates of hospital discharges for children under 18.
- Inclusion of demographic, hospital, and insurance characteristics from 1997-2006.
Main Results:
- No significant change in acute mastoiditis incidence was observed over the decade (1.88 to 1.62 per 100,000 person-years).
- Increased odds of admission for acute mastoiditis were associated with teaching hospitals, children's hospitals, and metropolitan locations.
- Calendar time did not significantly influence the overall incidence rate.
Conclusions:
- The incidence of acute mastoiditis in the United States has not increased.
- Shifts in hospital characteristics and reporting may account for the perception of rising incidence.
- Population-level data analysis is essential for accurate epidemiological trend assessment.
Objectives:
To evaluate the incidence of acute mastoiditis in children in the United States over the years 1997 through 2006 and to explore possible explanations for the conflicting conclusions of recent studies of this topic.
Design:
Comparison of periodic incidence over a decade.
Setting:
Academic and community, general, and pediatric specialty hospitals in the United States.
Patients:
Children younger than 18 years in the United States treated and discharged with a diagnosis of acute mastoiditis during the years 1997 through 2006.
Main Outcome Measures:
To compare true incidence of acute mastoiditis in the pediatric population of the United States, data from Healthcare Costs and Utilization Project-Kids' Inpatient Database (HCUP-KID) was examined for nationally weighted estimates of hospital discharges, demographics (age and sex), hospital characteristics, and insurance characteristics.
Results:
No significant change was found in the incidence of acute mastoiditis over the study period (from 1.88 to 1.62 per 100,000 person-years) (regression coefficient -0.024 [95% CI, -0.110 to 0.024]) (P = .37). Children admitted with acute mastoiditis had an increased odds of presenting to a teaching hospital (odds ratio [OR], 1.38 [95% CI, 1.31-1.45]) (P < .001), a children's hospital (OR, 1.08 [95% CI, 1.03-1.14]) (P = .001), and to a metropolitan location (OR, 1.10 [95% CI, 1.02-1.18]) (P = .016) over calendar time.
Conclusions:
The incidence of acute mastoiditis in the United States is not increasing. The changes in hospital factors identified over the course of this study may explain the perception of increased incidence identified in studies that have not used population-level data.
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