| In china, students in crowded dormitories with a low ventilation rate have more common colds: evidence for airborne transmission. | |
| | |
MedLine Citation:
|
PMID: 22110607 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
OBJECTIVE: To test whether the incidence of common colds among college students in China is associated with ventilation rates and crowdedness in dormitories. METHODS: In Phase I of the study, a cross-sectional study, 3712 students living in 1569 dorm rooms in 13 buildings responded to a questionnaire about incidence and duration of common colds in the previous 12 months. In Phase II, air temperature, relative humidity and CO(2) concentration were measured for 24 hours in 238 dorm rooms in 13 buildings, during both summer and winter. Out-to indoor air flow rates at night were calculated based on measured CO(2) concentrations. RESULTS: In Phase I, 10% of college students reported an incidence of more than 6 common colds in the previous 12 months, and 15% reported that each infection usually lasted for more than 2 weeks. Students in 6-person dorm rooms were about 2 times as likely to have an incidence of common colds ≥6 times per year and a duration ≥2 weeks, compared to students in 3-person rooms. In Phase II, 90% of the measured dorm rooms had an out-to indoor air flow rate less than the Chinese standard of 8.3 L/s per person during the heating season. There was a dose-response relationship between out-to indoor air flow rate per person in dorm rooms and the proportion of occupants with annual common cold infections ≥6 times. A mean ventilation rate of 5 L/(s•person) in dorm buildings was associated with 5% of self reported common cold ≥6 times, compared to 35% at 1 L/(s•person). CONCLUSION: Crowded dormitories with low out-to indoor airflow rates are associated with more respiratory infections among college students. |
| | |
Authors:
|
Yuexia Sun; Zhigang Wang; Yufeng Zhang; Jan Sundell |
Related Documents
:
|
18316867 - Medical school programs to increase the rural physician supply: a systematic review and... 10558277 - Vice president of medical affairs--moving on up to ceo? 12448647 - The experiences of japanese generalist physicians in overseas faculty development progr... 17425027 - Physician management and leadership education at the cleveland clinic foundation: progr... 12416297 - The goal as process: music and the search for the self. 21329267 - Literacy development of english language learners: the outcomes of an intervention prog... |
Publication Detail:
|
Type: Journal Article Date: 2011-11-16 |
Journal Detail:
|
Title: PloS one Volume: 6 ISSN: 1932-6203 ISO Abbreviation: PLoS ONE Publication Date: 2011 |
Date Detail:
|
Created Date: 2011-11-23 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101285081 Medline TA: PLoS One Country: United States |
Other Details:
|
Languages: eng Pagination: e27140 Citation Subset: IM |
Affiliation:
|
School of Environmental Science and Engineering, Tianjin University, Tianjin, China. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Relational memory: a daytime nap facilitates the abstraction of general concepts.
Next Document: Germline Stem Cell Gene PIWIL2 Mediates DNA Repair through Relaxation of Chromatin.