4.5 Article

Cold temperature and low humidity are associated with increased occurrence of respiratory tract infections

期刊

RESPIRATORY MEDICINE
卷 103, 期 3, 页码 456-462

出版社

W B SAUNDERS CO LTD
DOI: 10.1016/j.rmed.2008.09.011

关键词

Cold; Temperature; Humidity; Respiratory tract infection

向作者/读者索取更多资源

Objective: The association between cold exposure and acute respiratory tract infections (RTIs) has remained unclear. The study examined whether the development of RTIs is potentiated by cold exposure and towered humidity in a northern population. Methods: A population study where diagnosed RTI episodes, outdoor temperature and humidity among conscripts (n = 892) were analysed. Results: Altogether 643 RTI episodes were diagnosed during the follow-up period. Five hundred and ninety-five episodes were upper (URTI) and 87 lower (LRTI) RTIs. The mean average daily temperature preceding any RTIs was -3.7 +/- 10.6; for URTI and LRTI they were -4.1 +/- 10.6 degrees C and -1.1 +/- 10.0 degrees C, respectively. Temperature was associated with common cold (p = 0.017), pharyngitis (p = 0.011) and LRTI (p = 0.048). Absolute humidity was associated with URTI (p < 0.001). A 1 degrees C decrease in temperature increased the estimated risk for URTI by 4.3% (p < 0.0001), for common cold by 2.1% (p = 0.004), for pharyngitis by 2.8% (p = 0.019) and for LRTI by 2.1% (p = 0.039). A decrease of 1 g/m(-3) in absolute humidity increased the estimated risk for URTI by 10.0% (p < 0.001) and for pharyngitis by 10.8% (p = 0.023). The average outdoor temperature decreased during the preceding three days of the onset of any RTIs, URTI, LRTI or common cold. The temperature for the preceding 14 days also showed a linear decrease for any RTI, URTI or common cold. Absolute humidity decreased linearly during the preceding three days before the onset of common cold, and during the preceding 14 days for all RTIs, common cold and LRTI. Conclusions: Cold temperature and low humidity were associated with increased occurrence of RTIs, and a decrease in temperature and humidity preceded the onset of the infections. (C) 2008 Elsevier Ltd. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据