Effects of meteorological factors on the incidence of varicella in Lu’an, Eastern China, 2015–2020

Zhang, Tingting; Qin, Wei; Nie, Tingyue; Zhang, Deyue; Wu, Xuezhong

doi:10.1007/s11356-022-22878-0

Cited by 8 publications

(7 citation statements)

References 55 publications

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“…Varicella outbreaks tended to increase about a month after the start of the semester, reaching their peak during the semester, and gradually declining during vacations. Similar findings were reported in a study conducted in Korea (8). This pattern suggests a reduced risk of varicella exposure during vacation periods, although climate may also have influenced the outbreak risk (9).…”

Section: Discussionsupporting

confidence: 81%

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Epidemiological Characteristics of Varicella Outbreaks — China, 2006–2022

Wang,

Li,

You

et al. 2023

China CDC Weekly

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Introduction Varicella outbreaks significantly disrupt schools and other child-centered institutions. This study aimed to identify patterns and epidemiological features of varicella outbreaks in China from 2006 to 2022. Methods Data were extracted from outbreak reports submitted to the Public Health Emergency Reporting Management Information System within the specified timeframe. Analytical methods included Spearman correlation tests and the Mann-Kendall trend tests, conducted using R software to analyze and summarize reported data. Additionally, statistical analyses of trends and epidemiological characteristics were performed using SPSS software. Results Between 2006 and 2022, a total of 11,990 varicella outbreaks were reported in China, resulting in 354,082 cases. The attack rates showed a decreasing trend over the years (Z=−4.49, P <0.05). These outbreaks occurred in two peaks annually. The eastern region accounted for the highest number of outbreaks (31.53%), followed by the southwestern (24.22%) and southern (17.93%) regions. Varicella outbreaks were most common in elementary schools. Most of the outbreaks (60.43%) were classified as Grade IV (general) severity, with 86.41% of the outbreaks having 10–49 cases. The median and inter-quartile ranges (IQR) of the duration of outbreaks, response time, and case counts were 21 (10, 39) days, 4 (0, 12) days, and 23 (16, 35) cases, respectively. These variables showed a positive correlation ( P <0.001). Conclusions Varicella outbreaks exhibited fluctuating trends, initially decreasing until 2012, followed by an increase, reaching the highest peak in 2018–2019. Continual monitoring of varicella epidemiology is necessary to assess the burden of the disease and formulate evidence-based strategies and policies for its prevention and control.

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Section: Discussionsupporting

confidence: 81%

“…Similar findings were reported in a study conducted in Korea ( 8 ). This pattern suggests a reduced risk of varicella exposure during vacation periods, although climate may also have influenced the outbreak risk ( 9 ).…”

Section: Discussionmentioning

confidence: 99%

Epidemiological Characteristics of Varicella Outbreaks — China, 2006–2022

Wang,

Li,

You

et al. 2023

China CDC Weekly

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“…The model has effectively assessed the relationship between meteorological factors and climate-sensitive infectious diseases, including influenza, hand, foot and mouth disease, dengue fever, chickenpox, etc. [ 27 , [31] , [32] , [33] ]. Using the same model, two previous studies examined the relationship between climatic factors and the risk of brucellosis.…”

Section: Discussionmentioning

confidence: 99%

Risk effects of meteorological factors on human brucellosis in Jilin province, China, 2005–2019

Huang,

Wang,

et al. 2024

Heliyon

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“…The model is based on the following equations: Y t is the number of genitourinary disorder admissions on day t ; α denotes the intercept; t denotes the day of visit; and ∑cb() is a two-dimensional cross basis function of lag days and MT and DTR. As suggested by previous studies [ 18 ], in the cross-basis function, the lag days are lag 0–21 days (knots are placed on the value of equal spacing), and the lag dimension is a natural cubic spline with 4 df. The knots of the lag dimension are placed equidistantly on the logarithmic scale.…”

Section: Methodsmentioning

confidence: 99%

Association between air temperature and risk of hospitalization for genitourinary disorders: An environmental epidemiological study in Lanzhou, China

Zhang,

Ling

et al. 2023

PLoS ONE

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Objectives The aim of this study was to investigate the relationship between air temperature and the risk of hospitalization for genitourinary disorders. Methods Distributed lag non-linear models (DLNM) were used to estimate the association between air temperature and the risk of hospitalization for genitourinary disorders, with subgroup analysis by gender and age to identify the susceptible population of temperature-sensitive genitourinary system diseases. Results Low mean temperature (MT) (RR = 2.001, 95% CI: 1.856~2.159), high MT (RR = 2.884, 95% CI: 2.621~3.173) and low diurnal temperature range (DTR) (RR = 1.619, 95% CI: 1.508~1.737) were all associated with the increased risk of hospitalization for genitourinary disorders in the total population analysis, and the high MT effect was stronger than the low MT effect. Subgroup analysis found that high MT was more strongly correlated in male (RR = 2.998, 95% CI: 2.623~3.427) and those <65 years (RR = 3.003, 95% CI: 2.670~3.344), and low DTR was more strongly correlated in female (RR = 1.669, 95% CI: 1.510~1.846) and those <65 years (RR = 1.643, 95% CI: 1.518~1.780). Conclusions The effect of high MT on the risk of hospitalization for genitourinary disorders is more significant than that of low MT. DTR was independently associated with the risk of hospitalization for genitourinary disorders.

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Effects of meteorological factors on the incidence of varicella in Lu’an, Eastern China, 2015–2020

Cited by 8 publications

References 55 publications

Epidemiological Characteristics of Varicella Outbreaks — China, 2006–2022

Epidemiological Characteristics of Varicella Outbreaks — China, 2006–2022

Risk effects of meteorological factors on human brucellosis in Jilin province, China, 2005–2019

Association between air temperature and risk of hospitalization for genitourinary disorders: An environmental epidemiological study in Lanzhou, China

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