scholarly journals Indoor temperature and respiratory disease–related emergency department visits: a study of cumulative effects among older adults in Taiwan

2020 ◽  
Author(s):  
Chien-Cheng Jung ◽  
Ying-Fang Hsia ◽  
Nai-Yun Hsu ◽  
Yu-Chun Wang ◽  
Huey-Jen Su

Abstract Background Studies have demonstrated that exposure to extreme outdoor temperatures increases respiratory diseases related mortality and morbidity, especially in older adults. However, older adults spend over 80% of their time indoors, and the cumulative effects of exposure to indoor temperature on the risk of respiratory diseases have not been investigated. The objective of this study was to study the cumulative effect of indoor temperature exposure on emergency department visit due to respiratory diseases among older adults. Methods Participant data were collected from the Longitudinal Health Insurance Database from 2000 to 2014 in Taiwan. The cumulative degree hour was used to reflect the cumulative effect of indoor temperature exposure. A distributed lag nonlinear model was used to analyze the association between cumulative degree hour and emergency department visit due to respiratory diseases. Results Our findings revealed a significant risk of emergency department visits due to respiratory diseases at 27, 28, 29, 30, and 31 °C when cooling cumulative degree hours exceeded 60, 30, 19, 1, and 1, respectively, during the hot season (May to October) and at 19, 20, 21, 22, and 23 °C when heating cumulative degree hours exceeded 1, 1, 1, 39, and 49, respectively, during the cold season (November to April). Conclusions We conclude that the cumulative effects of indoor temperature exposure should be considered to reduce respiratory disease risk under climate change.

Author(s):  
Chien-Cheng Jung ◽  
Nai-Tzu Chen ◽  
Ying-Fang Hsia ◽  
Nai-Yun Hsu ◽  
Huey-Jen Su

Previous studies have demonstrated that outdoor temperature exposure was an important risk factor for respiratory diseases. However, no study investigates the effect of indoor temperature exposure on respiratory diseases and further assesses cumulative effect. The objective of this study is to study the cumulative effect of indoor temperature exposure on emergency department visits due to infectious (IRD) and non-infectious (NIRD) respiratory diseases among older adults. Subjects were collected from the Longitudinal Health Insurance Database in Taiwan. The cumulative degree hours (CDHs) was used to assess the cumulative effect of indoor temperature exposure. A distributed lag nonlinear model with quasi-Poisson function was used to analyze the association between CDHs and emergency department visits due to IRD and NIRD. For IRD, there was a significant risk at 27, 28, 29, 30, and 31 °C when the CDHs exceeded 69, 40, 14, 5, and 1 during the cooling season (May to October), respectively, and at 19, 20, 21, 22, and 23 °C when the CDHs exceeded 8, 1, 1, 35, and 62 during the heating season (November to April), respectively. For NIRD, there was a significant risk at 19, 20, 21, 22, and 23 °C when the CDHs exceeded 1, 1, 16, 36, and 52 during the heating season, respectively; the CDHs at 1 was only associated with the NIRD at 31 °C during the cooling season. Our data also indicated that the CDHs was lower among men than women. We conclude that the cumulative effects of indoor temperature exposure should be considered to reduce IRD risk in both cooling and heating seasons and NIRD risk in heating season and the cumulative effect on different gender.


2016 ◽  
Vol 64 (4) ◽  
pp. 870-874 ◽  
Author(s):  
Lauren T. Southerland ◽  
Julie A. Stephens ◽  
Shari Robinson ◽  
James Falk ◽  
Laura Phieffer ◽  
...  

2019 ◽  
Vol 26 (4) ◽  
pp. 255-260 ◽  
Author(s):  
Floor J. Van Deudekom ◽  
Jelle De Gelder ◽  
Jacinta A. Lucke ◽  
Anneleen Oostendorp – Lange ◽  
Sander Anten ◽  
...  

2020 ◽  
Vol 21 (5) ◽  
Author(s):  
Christopher Solie ◽  
Morgan Swanson ◽  
Kari Harland ◽  
Christopher Blum ◽  
Kevin Kin ◽  
...  

2019 ◽  
Vol 32 (1) ◽  
pp. 97-104
Author(s):  
Pei-Chao Lin ◽  
Li-Chan Lin ◽  
Hsiu-Fen Hsieh ◽  
Yao-Mei Chen ◽  
Pi-Ling Chou ◽  
...  

ABSTRACTObjectives:The objectives of this study were to investigate the primary diagnoses and outcomes of emergency department visits in older people with dementia and to compare these parameters with those in older adults without dementia.Design and Setting:This hospital-based retrospective study retrieved patient records from a hospital research database, which included the outpatient and inpatient claims of two hospitals.Participants:The patient records were retrieved from the two hospitals in an urban setting. The inclusion criteria were all patients aged 65 and older who had attended the two hospitals as an outpatient or inpatient between January 1, 2009, and December 31, 2016. Patients with dementia were identified to have at least three reports of diagnostic codes, either during outpatient visits, during emergency department visits, or in hospitalized database records. The other patients were categorized as patients without dementia.Measurements:The primary diagnosis during the emergency department visit, cost of emergency department treatment, cost of hospital admission, length of hospital stay, and diagnosis of death were collected.Results:A total of 149,203 outpatients and inpatients aged 65 and older who were admitted to the two hospitals were retrieved. The rate of emergency department visits in patients with dementia (23.2%) was lower than that in those without dementia (48.6%). The most frequent primary reason for emergency department visits and the main cause of patient death was pneumonia. Patients with dementia in the emergency department had higher hospital admission rates and longer hospital stays; however, the cost of treatment did not show a significant difference between the two groups.Conclusions:Future large and prospective studies should explore the severity of disease in older people with dementia and compare results with older adults without dementia in the emergency department.


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