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タイトル: | Underweight body mass index is a risk factor of mortality in outpatients with nocturia in Japan |
著者: | Negoro, Hiromitsu Sugino, Yoshio Nishizawa, Koji Soda, Takeshi Shimizu, Yosuke Yoshimura, Kenichi Ogawa, Osamu Yoshimura, Koji |
著者名の別形: | 根来, 宏光 小川, 修 |
キーワード: | Body mass index Mortality Nocturia Risk factors |
発行日: | 29-Sep-2015 |
出版者: | BioMed Central Ltd. |
誌名: | BMC Research Notes |
巻: | 8 |
論文番号: | 490 |
抄録: | Background: Although nocturia has been reported to increase mortality in elderly individuals, the particular risk factors that are associated with this event are unclear. Therefore, we evaluated risk factors for death in outpatients with nocturia. Methods: Between October 2002 and December 2009, 250 consecutive patients with nocturia were enrolled in two general hospitals in Japan. Among them, 193 patients were able to be followed for at least 1 year and up to 9 years (median 4.8 years) if the patients did not die. Mortality rates and risk factors were evaluated in the nocturic outpatients. Results: Two- and 5-year survival of the nocturic outpatients was 94.6 % [95 % confidence interval (CI) = 92.2-97.1] and 82.6 % (95 % CI = 75.4-87.8), respectively. Higher Charlson Comorbidity Score, lower body mass index (BMI) and lower Physical Component Summary of Short Form-36 item scores were significantly correlated with mortality (p < 0.0001, p < 0.005 and p < 0.05, respectively) in multivariate analysis. The International Prostate Symptom Score, Pittsburgh Sleep Quality Index, Mental or Role/Social Component Summary of Short Form-36 item scores and Nocturnal Polyuria index were not significantly correlated with mortality. The mortality rate was significantly higher in subjects with an underweight BMI (<18.50) compared with a normal range (18.50-24.99) or overweight (≥25.00) BMI [p < 0.00005, hazard ratio (HR) = 5.84, 95 % CI = 2.03-16.8; p < 0.0005, HR = 5.92, 95 % CI = 1.94-18.0]. Conclusions: Additional attention is required for nocturic outpatients with not only a high Charlson Comorbidity Score but also an underweight BMI because of their high mortality. Large prospective studies are warranted to validate this finding and extend more. |
著作権等: | © 2015 Negoro et al. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
URI: | http://hdl.handle.net/2433/213947 |
DOI(出版社版): | 10.1186/s13104-015-1456-6 |
PubMed ID: | 26415511 |
出現コレクション: | 学術雑誌掲載論文等 |
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