Temperature, hospital admissions and emergency room visits in Lhasa, Tibet: A time-series analysis

Bai, Li; Cirendunzhu,; Woodward, Alistair; Dawa,; Zhaxisangmu,; Chen, Bin; Liu, Qiyong

doi:10.1016/j.scitotenv.2014.05.024

Cited by 48 publications

(28 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As many studies indicated, both extremely low and high temperatures were robustly associated with adverse cardiopulmonary and cardiovascular events, including increased morbidity and mortality [ 13 , 36 , 37 , 38 , 39 ]. The authors further speculated that ambient temperature could be a potential and important confounding factor for lung function.…”

Section: Discussionmentioning

confidence: 99%

Short-Term Effects of Fine Particulate Matter and Temperature on Lung Function among Healthy College Students in Wuhan, China

Zhang

et al. 2015

IJERPH

View full text Add to dashboard Cite

Ambient fine particulate matter (PM) has been associated with impaired lung function, but the effect of temperature on lung function and the potential interaction effect between PM and temperature remain uncertain. To estimate the short-term effects of PM2.5 combined with temperature on lung function, we measured the daily peak expiratory flow (PEF) in a panel of 37 healthy college students in four different seasons. Meanwhile, we also monitored daily concentrations of indoor and outdoor PM2.5 (particulate matter with an aerodynamic diameter ≤2.5 μm), ambient temperature and relative humidity of the study area, where the study participants lived and attended school. Associations of air pollutants and temperature with lung function were assessed by generalized estimating equations (GEEs). A 10 μg/m3 increase of indoor PM2.5 was associated with a change of −2.09 L/min in evening PEF (95%CI: −3.73 L/min–−0.51 L/min) after adjusting for season, height, gender, temperature and relative humidity. The changes of −2.17 L/min (95%CI: −3.81 L/min– −0.52 L/min) and −2.18 L/min (95%CI: −3.96 L/min–−0.41 L/min) in evening PEF were also observed after adjusting for outdoor SO2 and NO2 measured by Environmental Monitoring Center 3 kilometers away, respectively. An increase in ambient temperature was found to be associated with a decrease in lung function and our results revealed a small but significant antagonistic interactive effect between PM2.5 and temperature. Our findings suggest that ambient PM2.5 has an acute adverse effect on lung function in young healthy adults, and that temperature also plays an important role.

show abstract

Section: Discussionmentioning

confidence: 99%

Short-Term Effects of Fine Particulate Matter and Temperature on Lung Function among Healthy College Students in Wuhan, China

Zhang

et al. 2015

IJERPH

View full text Add to dashboard Cite

show abstract

“…The DLNM is developed on the basis of "cross-basis" function, which allows simultaneously estimating the non-linear effect of temperature at each lag and the non-linear effects across lags [30]. Most recently, the method has been applied worldwide to identify a non-linear exposure-response association and delayed effects or harvesting [31].…”

Section: Statistical Modelsmentioning

confidence: 99%

“…We used a DLNM with 5 degrees of freedom natural cubic for temperature (knots at equally-spaced percentiles by default) and with 4 degrees of freedom natural cubic for lags (knots at equally-spaced values in the log scale of lags by default) [31]. The median value of the mean temperature (24.2 °C) was used as the reference value (centering value) to calculate the relative risks.…”

Section: Amaury De Souza Et Almentioning

confidence: 99%

The effects of climate on hospitalization for respiratory diseases by age group

Souza¹,

Aristone²,

Andrade³

et al. 2018

asms

View full text Add to dashboard Cite

It examined the relationship between temperatures and hospital admissions for respiratory diseases in the city of Campo Grande, Brazil, during 2008-2014, we used a distributed lag of the nonlinear model (DLNM) to examine the nonlinear effects of temperature on admissions hospital for respiratory diseases by age group. Nonlinear temperature effects were found in hospitalization for respiratory diseases by age group. Both hot and cold effects can last longer -a statistically 22 Amaury de Souza et al.significant relationship between the extreme temperatures and hospital admissions in all age groups in the gap. The heat had a greater impact on the elderly, while those aged 5-60 years were more sensitive to cold temperatures. The greatest risk of cumulative effects of heat was observed among those over 65 years at lag 0-25 (HR 1.509, 95% CI: 1.209 to 1.883), while those aged 5-60 years were at greater risk of exposure the extreme temperatures of cold lagged 0-25 (RR 1.482, 95% CI: 1.231 to 1.785). This study provides useful data for policy managers' decisions to better manage the health impacts of hot and cold temperatures.

show abstract

“…One hand, high temperature can directly affect the body's cardiovascular system and respiratory system, leading to a reduction in the body's immune power in the epidemic and makes the exposed population vulnerable to a variety of infectious pathogens (Bai et al, 2014;Kim et al, 2014), on the other hand, air pollution may amplify people's vulnerability to the adverse effects of temperature (Gordon, 2003) and could act as an effect modifier in the short-term effects of air temperature on disease (Breitner et al, 2014;Ren et al, 2006). Therefore, it is of great significance to explore the effects of air pollutants on incidence of bacillary dysentery.…”

Section: Introductionmentioning

confidence: 99%

Effects of ambient temperature and air pollutants on bacillary dysentery from 2014 to 2017 in Lanzhou, China

Han

Zhang

Cui

et al. 2019

Preprint

View full text Add to dashboard Cite

Background: Previous studies have always focused on the impact of various meteorological factors on bacillary dysentery (BD). However, only few studies have investigated the effects of climate and air pollutants on BD incidence simultaneously. This study aimed to investigate the effects of temperature and air pollutants on BD in Lanzhou. Methods: Daily data of BD cases and environmental factors from 2014 to 2017 were collected. A generalized additive model (GAM) was conducted to explore the relationship between environmental factors and BD. Then a distributed lag non-linear model (DLNM) was developed to assess the lag and cumulative effect. Furthermore, this study explored the variability across gender and age groups. Results: A total of 7102 cases of BD were notified over the study period. High temperature can significantly increase the risk of BD during the whole lag period, temperature has different exposure effects on different genders and age groups. With 9℃ as the reference value, each 1℃ rise in temperature result in a 4.8% (RR=1.048, 95%CI: 0.996, 1.103) increase in the number of cases BD at lag 0 day. With 50μg/m3 as the reference value, each 5μg/m3 rise in PM2.5 caused a 11.3% (RR=1.113, 95%CI: 1.066, 1.162) increase in the number of BD cases at lag 0. Low concentration of PM10 in the lag of 10-14 days can significantly increase the risk of BD, while high concentration PM10 in the lag of 6-14 days can significantly increase the risk of BD. Conclusions:Temperature, PM2.5 and PM10 are closely related to the incidence of bacillary dysentery. Our findings suggest adaptation plans that target vulnerable populations in susceptible communities should be developed to reduce health risks.

show abstract

Temperature, hospital admissions and emergency room visits in Lhasa, Tibet: A time-series analysis

Cited by 48 publications

References 53 publications

Short-Term Effects of Fine Particulate Matter and Temperature on Lung Function among Healthy College Students in Wuhan, China

Short-Term Effects of Fine Particulate Matter and Temperature on Lung Function among Healthy College Students in Wuhan, China

The effects of climate on hospitalization for respiratory diseases by age group

Effects of ambient temperature and air pollutants on bacillary dysentery from 2014 to 2017 in Lanzhou, China

Contact Info

Product

Resources

About