ArticleIranian journal of public health2013
Effect of Air Pollutant Markers on Multiple Sclerosis Relapses.
Article in Iranian journal of public health, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 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
8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.
- Air Pollution and the Risk and Progression of Multiple Sclerosis: A Systematic Review and Meta-Analysis.Annals of clinical and translational neurology · 2026Pooled it
- A Review of Studies Using Air Q Software for Prediction of Air Pollution Health Effects in Iran.Current environmental health reports · 2022Pooled it
- Review
- Air pollution and multiple sclerosis: a comprehensive review.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021Review
- Airborne particulate matter in Tehran's ambient air.Journal of environmental health science & engineering · 2021Review
- Multiple sclerosis in Iran: An epidemiological update with focus on air pollution debate.Journal of clinical and translational research · 2021Review
- Evidence of an increased prevalence of multiple sclerosis: a population-based study of Tehran registry during 1999-2018.BMC neurology · 2020Article
- Ozone, NOEnvironmental research · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMultiple Sclerosis (MS) is one of the autoimmune diseases with an unknown cause. The aim of this study was to explore the link between air quality and MS relapses in patients who suffer from MS.
methodsThis time-series study was conducted on patients registered at the Iranian Multiple Sclerosis Society in 2011-2012. They were randomly selected from patients lived in Tehran in the last five years, and had at least one relapse in the last three years. The link between monthly mean air pollutant levels and the relapses of MS in the participants was studied.
resultsAmong the registered 160 participants, at least 150 had one attack during 2009 and 2012. Most air pollutants such as NO2, NO and CO are in high levels in the rainy season. Others like Pm10 and Nox are in high levels in the dry season. The correlation between NO2 levels of all markers of air quality and MS relapses (P=0.03, r=0.27) is weak. Best ARIMA model (p,d,q; 1,0,1) was determined between number of monthly relapses and living place, although this model was not significant (P=0.3) (AR; P=0.000, MA;P=0.4).
conclusionsAir pollutants might be regarded as a risk factor for MS relapse.
Indexed as
Identifiers
26060626PMC4436546W2101204879What 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.