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Methodological extensions of meta-analysis with excess relative risk estimates: application to risk of second malignant neoplasms among childhood cancer survivors treated with radiotherapy
https://repo.qst.go.jp/records/46832
https://repo.qst.go.jp/records/4683285fa40e2-1ad5-4b76-b7fc-abe601e90b4e
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2014-10-15 | |||||
タイトル | ||||||
タイトル | Methodological extensions of meta-analysis with excess relative risk estimates: application to risk of second malignant neoplasms among childhood cancer survivors treated with radiotherapy | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
土居, 主尚
× 土居, 主尚× N, MIENO Makiko× 島田, 義也× 米原, 英典× 吉永, 信治× 土居 主尚× 島田 義也× 米原 英典× 吉永 信治 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Although radiotherapy is recognized as an established risk factor for second malignant neoplasms (SMNs), the dose response of SMNs following radiotherapy has not been well characterized. In our previous meta-analysis of the risks of SMNs occurring among children who have received radiotherapy, the small number of eligible studies precluded a detailed evaluation. Therefore, to increase the number of eligible studies, we developed a method of calculating excess relative risk (ERR) per Gy estimates from studies for which the relative risk estimates for several dose categories were available. Comparing the calculated ERR with that described in several original papers validated the proposed method. This enabled us to increase the number of studies, which we used to conduct a meta-analysis. The overall ERR per Gy estimate of radiotherapy over 26 relevant studies was 0.60 (95%CI: 0.30–1.20), which is smaller than the corresponding estimate for atomic bomb survivors exposed to radiation as young children (1.7; 95% CI: 1.1 –2.5). A significant decrease in ERR per Gy with increase in age at exposure (0.85 times per annual increase) was observed in the meta-regression. Heterogeneity was suggested by Cochran’s Q statistic (P < 0.001), which may be partly accounted for by age at exposure. |
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書誌情報 |
Journal of Radiation Research 巻 55, 号 5, p. 885-901, 発行日 2014-07 |
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出版者 | ||||||
出版者 | Oxford Journals, Oxford University Press | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-9157 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1093/jrr/rru045 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://jrr.oxfordjournals.org/content/early/2014/07/18/jrr.rru045.full | |||||
関連名称 | http://jrr.oxfordjournals.org/content/early/2014/07/18/jrr.rru045.full |