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Data validation in an economic evaluation of surgery for colon cancer

Published online by Cambridge University Press:  26 April 2005

Martin Janson
Affiliation:
Karolinska Institutet and University Hospital at Huddinge
Per Carlsson
Affiliation:
Linköping University
Eva Haglind
Affiliation:
Göteborg University and Sahlgrenska University Hospital
Bo Anderberg
Affiliation:
Karolinska Institutet and University Hospital at Huddinge

Abstract

Objectives: This study aimed to validate the accuracy of data retrieved in a prospective multicenter trial, the purpose of which was an economic evaluation of two techniques of surgery for colon cancer.

Methods: Within the Swedish contribution of the COLOR trial (Colon Cancer Open or Laparoscopic Resection), an economic evaluation of open versus laparoscopic surgical techniques was conducted. Data were collected by case record forms (CRF), patient diaries, and telephone surveys every 2 weeks. The study period was 12 weeks, and the perspective was societal. Data from the first consecutive forty patients to complete the health economic study protocol were validated. Retrieved data were compared with data from medical records and data from local social security offices for agreement.

Results: Statistically significant differences were found for duration of anesthesia, length of surgery, number of outpatient consultations by doctors and district nurses, complication rate, and the use of central venous lines. No significant differences were observed concerning length of hospital stay, disposable instruments cost, and time off work, all of which heavily influence total costs.

Conclusions: The present method of data collection regarding resources used in this setting seems to produce accurate data for economic evaluation; however, relative to complication rates, the method did not retrieve accurate data.

Type
RESEARCH REPORTS
Copyright
© 2005 Cambridge University Press

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