Effect of referral bias on assessing survival in ALS.
retrospective_cohort · Level III
Where this comes from
- Record sourced from PubMed, PMID 17310031.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
We assessed the effect of referral bias on patients with ALS treated at our medical center. A total of 132 subjects were treated by our center over the past 3 years. The referral population had a median survival of 29 months compared to 18 months for the local population (p = 0.007). Referral bias should be addressed when assessing the efficacy of self-selected therapies in the setting of a tertiary ALS clinic.
Medical subject headings
- Ambulatory Care Facilities
- Amyotrophic Lateral Sclerosis
- Hospice Care
- Referral and Consultation