Trends in Knee MRI Utilization in Norway (2002-2004)
Author Information
Author(s): Espeland Ansgar, Natvig Nils L, Løge Ingard, Engebretsen Lars, Ellingsen Jostein
Primary Institution: Haukeland University Hospital
Hypothesis
This study aimed to describe levels and trends in ambulant knee MRI utilisation in Norway 2002–2004.
Conclusion
Ambulant knee MRI utilisation in Norway increases rapidly especially for patients over 50, and shows large geographic differences.
Supporting Evidence
- The rate of knee MRI claims increased 64% from 2002 to 2004.
- Most claims (76% for 2004) came from private radiology services.
- The rate of knee MRI claims was highest for ages 50–59 years (29.0 per 1000 persons).
- Reimbursement for knee MRI claims increased 80% to 70 million Norwegian kroner in 2004.
Takeaway
More people in Norway are getting knee MRIs, especially older folks, and it varies a lot depending on where you live.
Methodology
The study analyzed administrative data on all claims for reimbursement of ambulant knee MRI performed in Norway from 2002 to 2004.
Potential Biases
Potential overuse of knee MRI may exist, especially in older age groups.
Limitations
Many claims did not specify the profession of the referring health care provider.
Participant Demographics
Claims were analyzed by age and gender, with a focus on patients aged 50 and above.
Statistical Information
P-Value
p<0.001
Confidence Interval
95% CI: 201, 1287
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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