Todd MacKenzie, PhD; Alex H. Gifford, MD; Kathryn A. Sabadosa, MPH; Hebe B. Quinton, MS; Emily A. Knapp, BA; Christopher H. Goss, MD, MSc; Bruce C. Marshall, MD
Grant Support: By the Cystic Fibrosis Foundation (grant OCONNO04QI0 to the Trustees of Dartmouth College).
Disclosures: Disclosures can be viewed at www.acponline.org/authors/icmje/ConflictOfInterestForms.do?msNum=M13-0636.
Reproducible Research Statement:Study protocol: Not available. Statistical code: Available from Dr. MacKenzie (e-mail, Todd.A.MacKenzie@Dartmouth.edu). Data set: Available on request from the Cystic Fibrosis Foundation.
Requests for Single Reprints: Kathryn A. Sabadosa, MPH, The Dartmouth Institute for Health Policy and Clinical Practice, 30 Lafayette Street, Suite 300, Lebanon, NH 03766; e-mail, Kathryn.A.Sabadosa@Dartmouth.edu.
Current Author Addresses: Dr. MacKenzie: Dartmouth–Hitchcock Medical Center, Clinical Research Section, 1 Medical Center Drive, DHMC, Lebanon, NH 03756.
Dr. Gifford: Dartmouth–Hitchcock Medical Center, Pulmonary and Critical Care Medicine, 5C, 1 Medical Center Drive, Lebanon, NH 03756.
Ms. Sabadosa: The Dartmouth Institute for Health Policy and Clinical Practice, 30 Lafayette Street, Suite 300, Lebanon, NH 03766.
Ms. Quinton: Dartmouth–Hitchcock Medical Center, Value Reporting and Analytics, 1 Medical Center Drive, Lebanon, NH 03756.
Ms. Knapp and Dr. Marshall: Cystic Fibrosis Foundation, 6931 Arlington Road, Bethesda, MD 20814.
Dr. Goss: University of Washington, 1959 NE Pacific Avenue, Campus Box 356522, Seattle, WA 98195.
Author Contributions: Conception and design: T. MacKenzie, H.B. Quinton, C.H. Goss, B.C. Marshall.
Analysis and interpretation of the data: T. MacKenzie, A.H. Gifford, H.B. Quinton, E.A. Knapp, B.C. Marshall.
Drafting of the article: T. MacKenzie, A.H. Gifford, K.A. Sabadosa, E.A. Knapp, C.H. Goss, B.C. Marshall.
Critical revision of the article for important intellectual content: T. MacKenzie, A.H. Gifford, K.A. Sabadosa, H.B. Quinton, E.A. Knapp, C.H. Goss, B.C. Marshall.
Final approval of the article: T. MacKenzie, A.H. Gifford, K.A. Sabadosa, E.A. Knapp, C.H. Goss, B.C. Marshall.
Provision of study materials or patients: B.C. Marshall.
Statistical expertise: T. MacKenzie, C.H. Goss.
Obtaining of funding: K.A. Sabadosa, B.C. Marshall.
Administrative, technical, or logistic support: K.A. Sabadosa, E.A. Knapp, C.H. Goss.
Collection and assembly of data: T. MacKenzie.
MacKenzie T., Gifford A., Sabadosa K., Quinton H., Knapp E., Goss C., Marshall B.; Longevity of Patients With Cystic Fibrosis in 2000 to 2010 and Beyond: Survival Analysis of the Cystic Fibrosis Foundation Patient Registry. Ann Intern Med. 2014;161:233-241. doi: 10.7326/M13-0636
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Published: Ann Intern Med. 2014;161(4):233-241.
Advances in treatments for cystic fibrosis (CF) continue to extend survival. An updated estimate of survival is needed for better prognostication and to anticipate evolving adult care needs.
To characterize trends in CF survival between 2000 and 2010 and to project survival for children born and diagnosed with the disease in 2010.
110 Cystic Fibrosis Foundation–accredited care centers in the United States.
All patients represented in the Cystic Fibrosis Foundation Patient Registry (CFFPR) between 2000 and 2010.
Survival was modeled with respect to age, age at diagnosis, gender, race or ethnicity, F508del mutation status, and symptoms at diagnosis.
Between 2000 and 2010, the number of patients in the CFFPR increased from 21 000 to 26 000, median age increased from 14.3 to 16.7 years, and adjusted mortality decreased by 1.8% per year (95% CI, 0.5% to 2.7%). Males had a 19% (CI, 13% to 24%) lower adjusted risk for death than females. Median survival of children born and diagnosed with CF in 2010 is projected to be 37 years (CI, 35 to 39 years) for females and 40 years (CI, 39 to 42 years) for males if mortality remains at 2010 levels and more than 50 years if mortality continues to decrease at the rate observed between 2000 and 2010.
The CFFPR does not include all patients with CF in the United States, and loss to follow-up and missing data were observed. Additional analyses to address these limitations suggest that the survival projections are conservative.
Children born and diagnosed with CF in the United States in 2010 are expected to live longer than those born earlier. This has important implications for prognostic discussions and suggests that the health care system should anticipate greater numbers of adults with CF.
Cystic Fibrosis Foundation.
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Gastroenterology/Hepatology, Pulmonary/Critical Care, Pancreatic Disease.
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