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McLeod C, Wood J, Tong A, Schultz A, Norman R, Smith S, Blyth CC, Webb S, Smyth AR, Snelling TL. The measurement properties of tests and tools used in cystic fibrosis studies: a systematic review. Eur Respir Rev 2021; 30:200354. [PMID: 33980667 PMCID: PMC9489019 DOI: 10.1183/16000617.0354-2020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 12/26/2020] [Indexed: 11/05/2022] Open
Abstract
There is no consensus on how best to measure responses to interventions among children and adults with cystic fibrosis (CF). We have systematically reviewed and summarised the characteristics and measurement properties of tests and tools that have been used to capture outcomes in studies among people with CF, including their reliability, validity and responsiveness. This review is intended to guide researchers when selecting tests or tools for measuring treatment effects in CF trials. A consensus set of these tests and tools could improve consistency in how outcomes are captured and thereby facilitate comparisons and synthesis of evidence across studies.
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Affiliation(s)
- Charlie McLeod
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, Nedlands, Australia
- Division of Paediatrics, Faculty of Medicine, University of Western Australia, Nedlands, Australia
- Infectious Diseases Dept, Perth Children's Hospital, Nedlands, Australia
| | - Jamie Wood
- Physiotherapy Dept, Sir Charles Gairdner Hospital, Nedlands, Australia
| | - Allison Tong
- Sydney School of Public Health, The University of Sydney, Sydney, Australia
- Centre for Kidney Research, The Children's Hospital at Westmead, Westmead, Australia
| | - André Schultz
- Wal-yan Respiratory Research Centre, Telethon Kids Institute, University of Western Australia, Nedlands, Australia
- Dept of Respiratory and Sleep Medicine, Perth Children's Hospital, Nedlands, Australia
| | - Richard Norman
- School of Population Health, Curtin University, Bentley, Australia
| | - Sherie Smith
- Evidence Based Child Health Group, University of Nottingham, Queens Medical Centre, Nottingham, UK
| | - Christopher C Blyth
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, Nedlands, Australia
- Division of Paediatrics, Faculty of Medicine, University of Western Australia, Nedlands, Australia
- Infectious Diseases Dept, Perth Children's Hospital, Nedlands, Australia
- Pathwest Laboratory Medicine WA, QEII Medical Centre, Nedlands, Australia
| | - Steve Webb
- St John of God Hospital, Subiaco, Australia
- School of Population Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Alan R Smyth
- Evidence Based Child Health Group, University of Nottingham, Queens Medical Centre, Nottingham, UK
| | - Thomas L Snelling
- Sydney School of Public Health, The University of Sydney, Sydney, Australia
- Menzies School of Health Research, Royal Darwin Hospital Campus, Tiwi, Australia
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Validation of a predictive survival model in Italian patients with cystic fibrosis. J Cyst Fibros 2012; 11:24-9. [DOI: 10.1016/j.jcf.2011.08.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Revised: 08/22/2011] [Accepted: 08/22/2011] [Indexed: 11/23/2022]
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Titman A, Rogers CA, Bonser RS, Banner NR, Sharples LD. Disease-specific survival benefit of lung transplantation in adults: a national cohort study. Am J Transplant 2009; 9:1640-9. [PMID: 19656145 DOI: 10.1111/j.1600-6143.2009.02613.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The lung transplantation candidate population is heterogeneous and survival benefit has not been established for all patient groups. UK data from a cohort of 1997 adult (aged > or = 16), first lung transplant candidates (listed July 1995 to July 2006, follow-up to December 2007) were analyzed by diagnosis, to assess mortality relative to continued listing. Donor lungs were primarily allocated according to local criteria. Diagnosis groups studied were cystic fibrosis (430), bronchiectasis (123), pulmonary hypertension (74), diffuse parenchymal lung disease (564), chronic obstructive pulmonary disease (COPD, 647) and other (159). The proportion of patients in each group who died while listed varied significantly (respectively 37%, 48%, 41%, 49%, 19%, 38%). All groups had an increased risk of death at transplant, which fell below waiting list risk of death within 4.3 months. Thereafter, the hazard ratio for death relative to listing ranged from 0.34 for cystic fibrosis to 0.64 for COPD (p < 0.05 all groups except pulmonary hypertension). Mortality reduction was greater after bilateral lung transplantation in pulmonary fibrosis patients (p = 0.049), but not in COPD patients. Transplantation appeared to improve survival for all groups. Differential waiting list and posttransplant mortality by diagnosis suggest further use and development of algorithms to inform lung allocation.
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Affiliation(s)
- A Titman
- MRC Biostatistics Unit, Robinson Way, Cambridge, UK
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