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Research ArticleClinical Studies

Delayed Radiotherapy for Patients with Localized Prostate Cancer: Validation by Propensity Score Matching

HIDETSUGU NAKAYAMA, AYAE KANEMOTO, KOJI KIKUCHI, KATSUYUKI MATSUKI, MITSURO TOMOBE, SADAMU TSUKAMOTO, HITOSHI TAKESHIMA, YOSHIKO OSHIRO, SHINJI SUGAHARA and KOICHI TOKUUYE
Anticancer Research April 2013, 33 (4) 1629-1633;
HIDETSUGU NAKAYAMA
1Department of Radiation Oncology, Tsukuba Medical Center, Tsukuba, Ibaraki, Japan
7Department of Radiation Oncology, Tokyo Medical University, Shinjuku, Tokyo, Japan
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  • For correspondence: hnakayam{at}tokyo-med.ac.jp
AYAE KANEMOTO
2Department of Radiation Oncology, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
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KOJI KIKUCHI
3Department of Urology, Tsukuba Medical Center, Tsukuba, Ibaraki, Japan
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KATSUYUKI MATSUKI
4Department of Urology, Ushiku Aiwa Hospital, Ushiku, Ibaraki, Japan
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MITSURO TOMOBE
4Department of Urology, Ushiku Aiwa Hospital, Ushiku, Ibaraki, Japan
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SADAMU TSUKAMOTO
5Department of Urology, Tsukuba Gakuen Hospital, Tsukuba, Ibaraki, Japan
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HITOSHI TAKESHIMA
6Department of Urology, Ryugasaki Saiseikai Hospital, Ryugasaki, Ibaraki, Japan
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YOSHIKO OSHIRO
1Department of Radiation Oncology, Tsukuba Medical Center, Tsukuba, Ibaraki, Japan
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SHINJI SUGAHARA
1Department of Radiation Oncology, Tsukuba Medical Center, Tsukuba, Ibaraki, Japan
7Department of Radiation Oncology, Tokyo Medical University, Shinjuku, Tokyo, Japan
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KOICHI TOKUUYE
7Department of Radiation Oncology, Tokyo Medical University, Shinjuku, Tokyo, Japan
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    Figure 1.

    Biochemical progression-free survival estimated by the Kaplan–Meier method. Five-year biochemical progression-free survival in delayed and non-delayed groups were 87.4% (95% confidence interval, CI=69.7-95.1%) and 96.6% (95% CI=89.6-98.9%), respectively. Patients in the delayed group had significantly shorter biochemical progression-free survival compared to the non-delayed group (p=0.03).

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Anticancer Research
Vol. 33, Issue 4
April 2013
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Delayed Radiotherapy for Patients with Localized Prostate Cancer: Validation by Propensity Score Matching
HIDETSUGU NAKAYAMA, AYAE KANEMOTO, KOJI KIKUCHI, KATSUYUKI MATSUKI, MITSURO TOMOBE, SADAMU TSUKAMOTO, HITOSHI TAKESHIMA, YOSHIKO OSHIRO, SHINJI SUGAHARA, KOICHI TOKUUYE
Anticancer Research Apr 2013, 33 (4) 1629-1633;

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Delayed Radiotherapy for Patients with Localized Prostate Cancer: Validation by Propensity Score Matching
HIDETSUGU NAKAYAMA, AYAE KANEMOTO, KOJI KIKUCHI, KATSUYUKI MATSUKI, MITSURO TOMOBE, SADAMU TSUKAMOTO, HITOSHI TAKESHIMA, YOSHIKO OSHIRO, SHINJI SUGAHARA, KOICHI TOKUUYE
Anticancer Research Apr 2013, 33 (4) 1629-1633;
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Keywords

  • Prostate cancer
  • delayed radiotherapy
  • propensity score
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