Estimating the Need for Radiotherapy for Patients With Prostate, Breast, and Lung Cancers: Verification of Model Estimates of Need With Radiotherapy Utilization Data From British Columbia

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• 作者：Scott Tyldesley FRCPC^* ; ^{styldesl@bccancer.bc.ca} ; Geoff Delaney FRANZCR^† ; ; Farshad Foroudi FRANZCR^‡ ; ; Lisa Barbera FRCPC^§ ; ; Marc Kerba FRCPC^¶ ; ; William Mackillop FRCPC
• 刊名：International Journal of Radiation Oncology*Biology*Physics
• 出版年：2011
• 出版时间：1 April 2011
• 年：2011
• 卷：79
• 期：5
• 页码：1507-1515
• 全文大小：1352 K

文摘

Purpose

Estimates of the need for radiotherapy (RT) using different methods (criterion based benchmarking [CBB] and the Canadian [C-EBEST] and Australian [A-EBEST] epidemiologically based estimates) exist for various cancer sites. We compared these model estimates to actual RT rates for lung, breast, and prostate cancers in British Columbia (BC).

Methods and Materials

All cases of lung, breast, and prostate cancers in BC from 1997 to 2004 and all patients receiving RT within 1 year (RT_1Y) and within 5 years (RT_5Y) of diagnosis were identified. The RT_1Y and RT_5Y proportions in health regions with a cancer center for the most recent year were then calculated. RT rates were compared with CBB and EBEST estimates of RT needs. Variation was assessed by time and region.

Results

The RT_1Y in regions with a cancer center for lung, breast, and prostate cancers were 51 % , 58 % , and 33 % compared with 45 % , 57 % , and 32 % for C-EBEST and 41 % , 61 % , and 37 % for CBB models. The RT_5Y rates in regions with a cancer center for lung, breast, and prostate cancers were 59 % , 61 % , and 40 % compared with 61 % , 66 % , and 61 % for C-EBEST and 75 % , 83 % , and 60 % for A-EBEST models. The RT_1Y rates increased for breast and prostate cancers.

Conclusions

C-EBEST and CBB model estimates are closer to the actual RT rates than the A-EBEST estimates. Application of these model estimates by health care decision makers should be undertaken with an understanding of the methods used and the assumptions on which they were based.