ArticlePloS one2012
The association between cold spells and pediatric outpatient visits for asthma in Shanghai, China.
Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 5 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
30 citing papers in PubMed, 5 syntheses or guidelines pooled it, 6 citations in OpenAlex.
- Extreme weather and asthma: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2023Pooled it
- A review of the impact of outdoor and indoor environmental factors on human health in China.Environmental science and pollution research international · 2020Pooled it
- The association between ambient temperature and childhood asthma: a systematic review.International journal of biometeorology · 2018Pooled it
- Temperature drop and the risk of asthma: a systematic review and meta-analysis.Environmental science and pollution research international · 2017Pooled it
- Global Association of Cold Spells and Adverse Health Effects: A Systematic Review and Meta-Analysis.Environmental health perspectives · 2016Pooled it
- Randomised Controlled Trial Comparing Single Maintenance and Reliever Therapy (SMART) with Inhaled Budesonide-Formoterol Combination, Versus Conventional Budesonide and Additional As-Needed Levo-Salbutamol, in Children with Persistent Bronchial Asthma.Indian journal of pediatrics · 2026Trial
- The Interlinkages Between Ambient Temperature and Air Pollution in Exacerbating Childhood Asthma: A Time Series Study in Cape Town, South Africa.Children (Basel, Switzerland) · 2025Article
- The short-term effects of different cold spell definitions on asthma outpatient visits in Lanzhou, China.BMC pulmonary medicine · 2025Article
- Cold waves and fine particulate matter in high-altitude Chinese cities: assessing their interactive impact on outpatient visits for respiratory disease.BMC public health · 2024Article
- Relationship between air quality and asthma-related emergency hospital admissions in Mexico City 2017-2019.Thorax · 2023Article
- Characterizing Cold Days and Spells and Their Relationship with Cold-Related Mortality in Bangladesh.Sensors (Basel, Switzerland) · 2023Article
- The lag-effects of meteorological factors and air pollutants on child respiratory diseases in Fuzhou, China.Journal of global health · 2022Article
- Association of children wheezing diseases with meteorological and environmental factors in Suzhou, China.Scientific reports · 2022Article
- Particulate matter pollution and emergency room visits for respiratory diseases in a valley Basin city of Northwest China.Environmental geochemistry and health · 2021Article
- Temperature changes between neighboring days and childhood asthma: a seasonal analysis in Shanghai, China.International journal of biometeorology · 2021Article
- Effect of Ambient Temperature on Daily Nebulized Asthma Hospital Visits in a Tropical City of Dhaka, Bangladesh.International journal of environmental research and public health · 2021Article
- Article
- Paradoxical home temperatures during cold weather: a proof-of-concept study.International journal of biometeorology · 2020Article
- Climate Change to Blame in Severe Oral Corticosteroid-Dependent Asthma? A Case Report.The American journal of case reports · 2020Article
- Geostatistical predictive modeling for asthma and chronic obstructive pulmonary disease using socioeconomic and environmental determinants.Environmental monitoring and assessment · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAsthma is a serious global health problem. However, few studies have investigated the relationship between cold spells and pediatric outpatient visits for asthma.
objectiveTo examine the association between cold spells and pediatric outpatient visits for asthma in Shanghai, China.
methodsWe collected daily data on pediatric outpatient visits for asthma, mean temperature, relative humidity, and ozone from Shanghai between 1 January 2007 and 31 December 2009. We defined cold spells as four or more consecutive days with temperature below the 5(th) percentile of temperature during 2007-2009. We used a Poisson regression model to examine the impact of temperature on pediatric outpatient visits for asthma in cold seasons during 2007 and 2009. We examined the effect of cold spells on asthma compared with non-cold spell days.
resultsThere was a significant relationship between cold temperatures and pediatric outpatient visits for asthma. The cold effects on children's asthma were observed at different lags. The lower the temperatures, the higher the risk for asthma attacks among children.
conclusionCold temperatures, particularly cold spells, significantly increase the risk of pediatric outpatient visits for asthma. The findings suggest that asthma children need to be better protected from cold effects in winter.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.