Understanding Factors Influencing X-ray Referrals for Low Back Pain
Author Information
Author(s): Jeremy M Grimshaw, Martin P Eccles, Nick Steen, Marie Johnston, Nigel B Pitts, Liz Glidewell, Graeme Maclennan, Ruth Thomas, Debbie Bonetti, Anne Walker
Primary Institution: Clinical Epidemiology Programme, Ottawa Health Research Institute
Hypothesis
Can psychological theories predict the referral behavior of primary care physicians for lumbar spine x-rays in patients with low back pain?
Conclusion
The study shows that psychological theories can help identify factors that predict clinical behavior, although challenges in methodology remain.
Supporting Evidence
- Psychological models can predict healthcare professional behavior.
- Constructs from various psychological theories explained a significant proportion of variance in referral behavior.
- Educational interventions can reduce unnecessary x-ray referrals without adverse effects.
Takeaway
Doctors often refer patients for x-rays when they have back pain, but this study found that understanding their thoughts and beliefs can help improve how they make these decisions.
Methodology
The study used a postal questionnaire survey to collect psychological measures from a random sample of primary care physicians and analyzed the data using regression models.
Potential Biases
Potential selection bias due to low response rates and the possibility of misattribution of x-ray requests.
Limitations
The theoretical models did not fit the data well, and there were challenges in operationalizing the constructs and measuring behavior accurately.
Participant Demographics
58% of respondents were male, with a mean qualification duration of 21 years.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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