High ambient temperature increases the number of emergency visits for upper urolithiasis in Hefei City, China.
Heliyon
; 9(1): e12856, 2023 Jan.
Article
em En
| MEDLINE
| ID: mdl-36711317
ABSTRACT
Background:
Few studies have examined the effect of ambient temperature on upper urolithiasis in developing countries, with even fewer considering individual factors.Methods:
The present study analyzed data on emergency department visits for upper urolithiasis from three hospital sites of a large hospital in Hefei, China, during 2016-2020. Data on environmental factors during the same period were also analyzed. A time series analysis employing a generalized Poisson regression model (GPRM) combined with a distributed lag non-linear model (DLNM) was conducted to evaluate the effect of ambient temperature on the number of emergency department visits for upper urolithiasis.Results:
We found that ambient temperatures above 9 °C were positively associated with the frequency of upper urolithiasis visits, with the relationship being most significant on the current day and with a one-day lag. In the single-day lag effect, the most significant relative risk (RR) for mild heat (75th percentile) and high heat (95th percentile) was 1.229 (95% CI 1.100-1.373) and 1.337 (95% CI 1.134-1.577), respectively. The cumulative lag effect was significantly higher than the single-day lag effect, with maximum relative risks (RRs) of 1.779 (95% CI 1.356-2.335) and 2.498 (95% CI 1.688-3.697), respectively. The maximum lag time was 7 days. RRs were also higher among women and individuals aged 30-44 years.Conclusions:
Increased ambient temperature is a risk factor for upper urolithiasis, and there is a hysteresis effect. Women and individuals aged 30-44 years are the most susceptible.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
Idioma:
En
Revista:
Heliyon
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
China