Evidence map›Paper›PMID 26869784›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2016

Differences in the effects of Asian dust on pulmonary function between adult patients with asthma and those with asthma-chronic obstructive pulmonary disease overlap syndrome.

Masanari Watanabe, Hisashi Noma, Jun Kurai, Hiroyuki Sano, Yasuto Ueda, Masaaki Mikami, Hiroyuki Yamamoto, Hirokazu Tokuyasu, Kazuhiro Kato, Tatsuya Konishi and 3 more

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 24% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
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

13 authors at 6 institutions in 1 country.

Masanari WatanabeDepartment of Respiratory Medicine and Rheumatology, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago, Japan.
Hisashi NomaDepartment of Data Science, The Institute of Statistical Mathematics, 10-3 Midori-cho, Tachikawa, Tokyo, Japan.
Jun KuraiDepartment of Respiratory Medicine and Rheumatology, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago, Japan.
Hiroyuki SanoDepartment of Respiratory Medicine and Allergology, Kinki University Faculty of Medicine, 377-2 Ohnohigashi, Osakasayama, Japan.
Yasuto UedaDepartment of Respiratory Medicine and Rheumatology, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago, Japan.
Masaaki MikamiHosshoji Clinic, 286-4 Hosshoji, Saihaku, Japan.
Hiroyuki YamamotoSaihaku Hospital, 397 Yamato, Saihaku, Japan.
Hirokazu TokuyasuDepartment of Respiratory Medicine, Matsue Red Cross Hospital, 200 Horomachi, Matsue, Japan.
Kazuhiro KatoDepartment of Respiratory Medicine, San-in Rosai Hospital, 1-8-1 Kaikeshinden, Yonago, Japan.
Tatsuya KonishiDepartment of Respiratory Medicine, Matsue City Hospital, 32-1 Noshirachou, Matsue, Japan.
Toshiyuki TatsukawaDepartment of Respiratory Medicine, Matsue City Hospital, 32-1 Noshirachou, Matsue, Japan.
Eiji ShimizuDepartment of Respiratory Medicine and Rheumatology, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago, Japan.
Hiroya KitanoThe Board of Directors, Tottori University, 36-1 Nishi-cho, Yonago, Japan.
Tottori University · JPMatsudo City Hospital · JPKindai University · JPMatsue Red Cross Hospital · JPSanin Rosai Hospital · JPThe Institute of Statistical Mathematics · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAsian dust (AD) exposure exacerbates pulmonary dysfunction in patients with asthma. Asthma-chronic obstructive pulmonary disease overlap syndrome (ACOS), characterized by coexisting symptoms of asthma and chronic obstructive pulmonary disease, is considered a separate disease entity. Previously, we investigated the effects of AD on pulmonary function in adult patients with asthma. Here, we present the findings of our further research on the differences in the effects of AD exposure on pulmonary function between patients with asthma alone and those with ACOS.

methodsBetween March and May 2012, we conducted a panel study wherein we monitored daily peak expiratory flow (PEF) values in 231 adult patients with asthma. These patients were divided into 190 patients with asthma alone and 41 patients with ACOS in this study. Daily AD particle levels were measured using light detection and ranging systems. Two heavy AD days (April 23 and 24) were determined according to the Japan Meteorological Agency definition. A linear mixed model was used to estimate the association between PEF and AD exposure.

resultsIncrements in the interquartile range of AD particles (0.018 km(-1)) led to PEF changes of -0.50 L/min (95% confidence interval, -0.98 to -0.02) in patients with asthma alone and -0.11 L/min (-0.11 to 0.85) in patients with ACOS. The PEF changes after exposure to heavy AD were -2.21 L/min (-4.28 to -0.15) in patients with asthma alone and -2.76 L/min (-6.86 to 1.35) in patients with ACOS. In patients with asthma alone, the highest decrease in PEF values was observed on the heavy AD day, with a subsequent gradual increase over time.

conclusionOur results suggest that the effects of AD exposure on pulmonary function differ between patients with asthma alone and ACOS, with the former exhibiting a greater likelihood of decreased pulmonary function after AD exposure.

Indexed as

AsthmaInhalation ExposurePulmonary Disease, Chronic ObstructiveAdultAgedDustEnvironmental MonitoringFemaleHumansJapanMaleMiddle AgedRespiratory Function TestsRisk FactorsDustAsian dustasthmaasthma–chronic obstructive pulmonary disease overlap syndromepeak expiratory flowpulmonary function

Identifiers

PMID26869784
PMCPMC4734731
OpenAlexW2291509856

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.