Seasonality of primary care utilization for respiratory diseases in Ontario: A time-series analysis
2008

Seasonal Patterns of Respiratory Disease Visits in Ontario

publication Evidence: high

Author Information

Author(s): Moineddin Rahim, Nie Jason X, Domb Gabrielle, Leong Alan M, Upshur Ross EG

Primary Institution: University of Toronto

Hypothesis

What are the seasonal patterns in primary care visits for respiratory diseases in Ontario?

Conclusion

Primary care visits for respiratory diseases have clear predictable seasonal patterns, driven primarily by viral circulations.

Supporting Evidence

  • Visits to primary care physicians for respiratory conditions increase threefold in winter compared to summer.
  • Children aged 0-4 had the highest visit rates for respiratory diseases.
  • Females had significantly more visits for respiratory diseases than males throughout the study period.

Takeaway

In winter, many more people visit the doctor for breathing problems than in summer, mostly because of viruses like the flu.

Methodology

A retrospective, cross-sectional time series analysis was conducted using data from the Ontario Health Insurance Plan database over a 10-year period.

Potential Biases

The use of a single diagnosis per visit may have led to underreporting of respiratory disease visits.

Limitations

The study relied on administrative data that may not have been originally collected for health research, leading to potential inaccuracies in diagnostic coding.

Participant Demographics

The study included patients of all ages, with a focus on young children and differences between genders.

Statistical Information

P-Value

p = 0.0001

Statistical Significance

p<0.0001

Digital Object Identifier (DOI)

10.1186/1472-6963-8-160

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