Incidence of Rheumatoid Arthritis in Southern Denmark (1995-2001)
Author Information
Author(s): Jens K Pedersen, Anders J Svendsen, Kim Hørslev-Petersen
Primary Institution: King Christian X Hospital for Rheumatic Diseases
Hypothesis
What is the incidence of rheumatoid arthritis in the southern part of Denmark from 1995 to 2001?
Conclusion
The study found that the mean annual incidence of rheumatoid arthritis was 40 in females, 21 in males, and 31 in both genders combined.
Supporting Evidence
- The mean annual incidence rate was 40 in females and 21 in males.
- Incidence rates were consistent with studies from North America and Northern Europe.
- 83% of identified cases fulfilled the 1987 ACR criteria for rheumatoid arthritis.
Takeaway
The study looked at how many people got rheumatoid arthritis in southern Denmark over several years and found that more women than men got it.
Methodology
The study used medical records from a rheumatology hospital to estimate the incidence of rheumatoid arthritis over a seven-year period.
Potential Biases
There is a risk of misclassification of cases due to incomplete medical records.
Limitations
Some patients may have been treated outside the hospital, and the study relied on the quality of medical records.
Participant Demographics
The study included a population of about 200,000 people over the age of 15.
Statistical Information
P-Value
0.011 for females, 0.037 for males
Confidence Interval
95%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website