Evidence map›Paper›PMID 33489478›Full record

ArticleAmerican journal of clinical and experimental immunology2020

Association of toxic indoor air with multi-organ symptoms in pupils attending a moisture-damaged school in Finland.

Saija M Hyvonen, Jouni J Lohi, Leena A Rasanen, Tuula Heinonen, Marika Mannerstrom, Kirsi Vaali, Tamara Tuuminen

Open access · greenAbstract read
In one paragraph

Article in American journal of clinical and experimental immunology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 33% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 10 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 6 institutions in 1 country.

Saija M HyvonenMedical Faculty, Turku University Finland.
Jouni J LohiDepartment of Pathology, Lapland Central Hospital Rovaniemi, Ounasrinteentie 22, Rovaniemi 84100, Finland.
Leena A RasanenCo-op Bionautit Viikinkaari 9, Helsinki 00790, Finland.
Tuula HeinonenFICAM, The Faculty of Medicine and Health Technology, Arvo Ylpön katu 1, University of Tampere Tampere 33014, Finland.
Marika MannerstromFICAM, The Faculty of Medicine and Health Technology, Arvo Ylpön katu 1, University of Tampere Tampere 33014, Finland.
Kirsi VaaliSelexLab Kalevankatu 20, Helsinki 00100, Finland.
Tamara TuuminenKruunuhaka Medical Center Kaisaniemenkatu 1 B, Helsinki 00100, Finland.
Tampere University of Applied Sciences · FIBiocenter Finland · FIConnexor (Finland) · FIKainuun keskussairaala · FILapland Central Hospital · FIUniversity of Turku · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is an on-going debate on how best to test toxic indoor air. Toxicological methods based on condensed water samples and cell culture technique are newly introduced research tools which were tested in this study.

methodsPupils (n=47) from a water-damaged and (n=56) healthy schools were interviewed using a questionnaire. Indoor air was collected with a novel condensed water sampling technique and human THP-1 macrophages were exposed to the condensate. The cytotoxicity of cotton wool swab samples was tested using human BJ fibroblasts. Conventional microbiological culture methods were also performed.

resultsGastrointestinal problems (GI) were reported by 51% from the study cohort but only 4% of the control cohort, relative risk RR=14.30. For any neurological or neuropsychological symptoms, the RR was 63.04, muscular-skeletal pain RR=58.28, headache RR=31.00, respiratory symptoms RR=22.64, fatigue RR=21.45, sub febrility RR=15.49, ear infections RR=7.74, skin rash RR=5.96, all being statistically significant (P<0.001). All indoor air (n=7) and cotton wool samples (n=2) taken from the water-damaged classroom or in proximity of the problematic classrooms were toxic in cell culture assays. Low numbers of moisture-damage indicators were recovered from wall, passive air, and swab samples, namely

conclusionsIndoor air toxicity and dampness-related microbiota recovered from the classrooms were associated with multi-organ morbidity of the school occupants. These results corroborated our previous reports from two adult cohorts i.e. evidence of causality. These new toxicological methods based on condensed water and cell culturing techniques seem to be superior to conventional microbiological methods in correlating with clinical symptoms.

Indexed as

Dampness and moldgastrointestinal symptomsindoor airmoisture damagemycotoxinsneurological symptomstoxicity

Identifiers

PMID33489478
PMCPMC7811924
OpenAlexW3126141541

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.