期刊
NEUROLOGY
卷 68, 期 8, 页码 600-602出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1212/01.wnl.0000254501.58158.e7
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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.
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