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Khair S, Dort JC, Quan ML, Cheung WY, Sauro KM, Nakoneshny SC, Popowich BL, Liu P, Wu G, Xu Y. Validated algorithms for identifying timing of second event of oropharyngeal squamous cell carcinoma using real-world data. Head Neck 2022; 44:1909-1917. [PMID: 35653151 DOI: 10.1002/hed.27109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 04/29/2022] [Accepted: 05/18/2022] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Understanding occurrence and timing of second events (recurrence and second primary cancer) is essential for cancer specific survival analysis. However, this information is not readily available in administrative data. METHODS Alberta Cancer Registry, physician claims, and other administrative data were used. Timing of second event was estimated based on our developed algorithm. For validation, the difference, in days between the algorithm estimated and the chart-reviewed timing of second event. Further, the result of Cox-regression modeling cancer-free survival was compared to chart review data. RESULTS Majority (74.3%) of the patients had a difference between the chart-reviewed and algorithm-estimated timing of second event falling within the 0-60 days window. Kaplan-Meier curves generated from the estimated data and chart review data were comparable with a 5-year second-event-free survival rate of 75.4% versus 72.5%. CONCLUSION The algorithm provided an estimated timing of second event similar to that of the chart review.
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Affiliation(s)
- Shahreen Khair
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Joseph C Dort
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Surgery, Cumming School of Medicine, University of Calgary, North Tower, Foothills Medical Centre, Calgary, Alberta, Canada
| | - May Lynn Quan
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Surgery, Cumming School of Medicine, University of Calgary, North Tower, Foothills Medical Centre, Calgary, Alberta, Canada.,Department of Oncology, Cumming School of Medicine, University of Calgary, Tom Baker, Cancer Centre, Calgary, Alberta, Canada
| | - Winson Y Cheung
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Surgery, Cumming School of Medicine, University of Calgary, North Tower, Foothills Medical Centre, Calgary, Alberta, Canada
| | - Khara M Sauro
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Surgery, Cumming School of Medicine, University of Calgary, North Tower, Foothills Medical Centre, Calgary, Alberta, Canada.,Department of Oncology, Cumming School of Medicine, University of Calgary, Tom Baker, Cancer Centre, Calgary, Alberta, Canada
| | - Steven C Nakoneshny
- The Ohlson Research Initiative, Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Brittany Lynn Popowich
- Centre for Health Informatics, Cumming School of Medicine, University of Calgary, Teaching Research and Wellness (TRW), Calgary, Alberta, Canada
| | - Ping Liu
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Guosong Wu
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Centre for Health Informatics, Cumming School of Medicine, University of Calgary, Teaching Research and Wellness (TRW), Calgary, Alberta, Canada
| | - Yuan Xu
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Surgery, Cumming School of Medicine, University of Calgary, North Tower, Foothills Medical Centre, Calgary, Alberta, Canada.,Department of Oncology, Cumming School of Medicine, University of Calgary, Tom Baker, Cancer Centre, Calgary, Alberta, Canada.,Centre for Health Informatics, Cumming School of Medicine, University of Calgary, Teaching Research and Wellness (TRW), Calgary, Alberta, Canada
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