Association between ambient temperature and cognitive function in a community-dwelling elderly population: a repeated measurement study
Objectives Evidence on the associations between short-term and long-term air temperature exposure and cognitive function in older adults, particularly those in Asia, is limited. We explored the relationships of short-term and long-term air temperature exposure with cognitive function in Taiwanese ol...
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| Format: | Article |
| Language: | English |
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BMJ Publishing Group
2021-12-01
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| Series: | BMJ Open |
| Online Access: | https://bmjopen.bmj.com/content/11/12/e049160.full |
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| author | Yann-Yuh Jou Yuan-Ting C Lo Wei-Peng Su Shu-Hsuan Mei Han-Bin Huang |
| author_facet | Yann-Yuh Jou Yuan-Ting C Lo Wei-Peng Su Shu-Hsuan Mei Han-Bin Huang |
| author_sort | Yann-Yuh Jou |
| collection | DOAJ |
| description | Objectives Evidence on the associations between short-term and long-term air temperature exposure and cognitive function in older adults, particularly those in Asia, is limited. We explored the relationships of short-term and long-term air temperature exposure with cognitive function in Taiwanese older adults through a repeated measures survey.Design and setting We used data the ongoing Taiwan Longitudinal Study on Aging, a multiple-wave nationwide survey.Participants We identified 1956, 1700, 1248 and 876 older adults in 1996, 1999, 2003 and 2007, respectively.Primary and secondary outcome measures Participants’ cognitive function assessment was based on the Short Portable Mental Status Questionnaire. We calculated the temperature moving average (TMA) for temperature exposure windows between 1993 and 2007 using data from air quality monitoring stations, depending on the administrative zone of each participant’s residence. Generalised linear mixed models were used to examine the effects of short-term and long-term temperature changes on cognitive function.Results Short-term and long-term temperature exposure was significantly and positively associated with moderate-to-severe cognitive impairment, with the greatest increase in ORs found for 3-year TMAs (OR 1.247; 95% CI 1.107 to 1.404). The higher the quintiles of temperature exposure were, the higher were the ORs. The strongest association found was in long-term TMA exposure (OR 3.674; 95% CI 2.103 to 6.417) after covariates were controlled for.Conclusions The risk of mild cognitive impairment increased with ambient temperature in community-dwelling older adults in Taiwan. |
| format | Article |
| id | doaj-art-0f94d00189664a048ba39056dc2bded1 |
| institution | Kabale University |
| issn | 2044-6055 |
| language | English |
| publishDate | 2021-12-01 |
| publisher | BMJ Publishing Group |
| record_format | Article |
| series | BMJ Open |
| spelling | doaj-art-0f94d00189664a048ba39056dc2bded12024-12-10T00:15:09ZengBMJ Publishing GroupBMJ Open2044-60552021-12-01111210.1136/bmjopen-2021-049160Association between ambient temperature and cognitive function in a community-dwelling elderly population: a repeated measurement studyYann-Yuh Jou0Yuan-Ting C Lo1Wei-Peng Su2Shu-Hsuan Mei3Han-Bin Huang4School of Public Health, National Defense Medical Center, Taipei, TaiwanSchool of Public Health, National Defense Medical Center, Taipei, TaiwanSchool of Public Health, National Defense Medical Center, Taipei, TaiwanSchool of Public Health, National Defense Medical Center, Taipei, TaiwanSchool of Public Health, National Defense Medical Center, Taipei, TaiwanObjectives Evidence on the associations between short-term and long-term air temperature exposure and cognitive function in older adults, particularly those in Asia, is limited. We explored the relationships of short-term and long-term air temperature exposure with cognitive function in Taiwanese older adults through a repeated measures survey.Design and setting We used data the ongoing Taiwan Longitudinal Study on Aging, a multiple-wave nationwide survey.Participants We identified 1956, 1700, 1248 and 876 older adults in 1996, 1999, 2003 and 2007, respectively.Primary and secondary outcome measures Participants’ cognitive function assessment was based on the Short Portable Mental Status Questionnaire. We calculated the temperature moving average (TMA) for temperature exposure windows between 1993 and 2007 using data from air quality monitoring stations, depending on the administrative zone of each participant’s residence. Generalised linear mixed models were used to examine the effects of short-term and long-term temperature changes on cognitive function.Results Short-term and long-term temperature exposure was significantly and positively associated with moderate-to-severe cognitive impairment, with the greatest increase in ORs found for 3-year TMAs (OR 1.247; 95% CI 1.107 to 1.404). The higher the quintiles of temperature exposure were, the higher were the ORs. The strongest association found was in long-term TMA exposure (OR 3.674; 95% CI 2.103 to 6.417) after covariates were controlled for.Conclusions The risk of mild cognitive impairment increased with ambient temperature in community-dwelling older adults in Taiwan.https://bmjopen.bmj.com/content/11/12/e049160.full |
| spellingShingle | Yann-Yuh Jou Yuan-Ting C Lo Wei-Peng Su Shu-Hsuan Mei Han-Bin Huang Association between ambient temperature and cognitive function in a community-dwelling elderly population: a repeated measurement study BMJ Open |
| title | Association between ambient temperature and cognitive function in a community-dwelling elderly population: a repeated measurement study |
| title_full | Association between ambient temperature and cognitive function in a community-dwelling elderly population: a repeated measurement study |
| title_fullStr | Association between ambient temperature and cognitive function in a community-dwelling elderly population: a repeated measurement study |
| title_full_unstemmed | Association between ambient temperature and cognitive function in a community-dwelling elderly population: a repeated measurement study |
| title_short | Association between ambient temperature and cognitive function in a community-dwelling elderly population: a repeated measurement study |
| title_sort | association between ambient temperature and cognitive function in a community dwelling elderly population a repeated measurement study |
| url | https://bmjopen.bmj.com/content/11/12/e049160.full |
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