Evidence map›Paper›PMID 27898718›Full record

ArticlePloS one2016

Pollen Season Trends (1973-2013) in Stockholm Area, Sweden.

Tomas Lind, Agneta Ekebom, Kerstin Alm Kübler, Pia Östensson, Tom Bellander, Mare Lõhmus

Abstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
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

16 citing papers in PubMed.

  1. Article
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  11. Respiratory allergies: Salicaceae sensitization (Review).Experimental and therapeutic medicine · 2021
    Review
  12. Article
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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

6 authors.

Tomas LindInstitute of Environmental Medicine, Karolinska Institutet, Sweden.
Agneta EkebomDepartment of Environmental Research and Monitoring, Swedish Museum of Natural History, Sweden.
Kerstin Alm KüblerDepartment of Environmental Research and Monitoring, Swedish Museum of Natural History, Sweden.
Pia ÖstenssonDepartment of Environmental Research and Monitoring, Swedish Museum of Natural History, Sweden.
Tom BellanderInstitute of Environmental Medicine, Karolinska Institutet, Sweden.
Mare LõhmusInstitute of Environmental Medicine, Karolinska Institutet, Sweden.ORCID http://orcid.org/0000-0002-6619-9679

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the present study, the phenological and quantitative changes in the pollen seasons between 1973 and 2013 in the Stockholm region of Sweden were studied for nine types of pollen (hazel, alder, elm, birch, oak, grass, mugwort, willow and pine). Linear regression models were used to estimate the long term trends in duration, start- and end-dates, peak-values and the yearly accumulated pollen sums of the pollen seasons. The pollen seasons of several arboreal plant species (e.g. birch, oak and pine) were found to start significantly earlier today compared to 41 years earlier, and have an earlier peak-date, while the season of other species seemed largely unaffected. However, the long term trends in the end-dates of pollen seasons differed between arboreal and herbaceous species. For herbaceous species (grass and mugwort), a significant change towards later end-dates was observed and the duration of season was found to have increased. A significant trend towards an earlier end-date was found in the majority of the arboreal plant species (i.e. elm, oak, pine and birch), but the length of the season seemed unaffected. A trend towards an increase in yearly concentrations of pollen was observed for several species; however the reasons for this phenomenon cannot be explained unambiguously by the present study design. The trend of increasing yearly mean air temperatures in the Stockholm area may be the reason to changed phenological patterns of pollen seasons.

Indexed as

PollenSeasonsAir PollutantsAllergensClimate ChangeEnvironmental MonitoringHumansModels, TheoreticalSwedenTime FactorsAir PollutantsAllergens

Identifiers

PMID27898718
PMCPMC5127655

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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.