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A Simulation Study of Lognormal Measurement Error Effect - Discrimination Problem of Radon and Thoron
https://repo.qst.go.jp/records/69552
https://repo.qst.go.jp/records/69552feea8b2b-6380-498a-b672-044d85a29445
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-10-30 | |||||
| タイトル | ||||||
| タイトル | A Simulation Study of Lognormal Measurement Error Effect - Discrimination Problem of Radon and Thoron | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Doi, Kazutaka
× Doi, Kazutaka× Tokonami, Shinji× Kobayashi, Yosuke× Yonehara, Hidenori× Yoshinaga, Shinji× 土居 主尚× 床次 眞司× 小林 羊佐× 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 | Recently, several case-control studies have indicated an increased risk of lung cancer linked to indoor radon exposure. These studies often used the passive-type radon detectors, and the reading of these detectors without thoron discrimination techniques would be overestimated by thoron. Therefore, to evaluate the effect of overestimation in radon concentration, we conducted a simulation study. We assumed a case-control study of lung cancer and indoor radon with hypothetical data where radon concentrations were measured with and without discrimination of thoron concentration. The thoron interference in radon measurement resulted in an approximately 90% downward bias in the effect of radon, and this bias was affected by radon and thoron concentration, and radon detector. However the bias was almost constant when the other parameters were varied. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 12th International Congress of the International Radiation Protection Association | |||||
| 発表年月日 | ||||||
| 日付 | 2008-10-24 | |||||
| 日付タイプ | Issued | |||||
