Evidence map›Paper›PMID 34311737›Full record

ArticleBMC musculoskeletal disorders2021

Exposure-lag-response associations between weather conditions and ankylosing spondylitis: a time series study.

Ling Xin, Jian Liu, Yongjian Zhu, Yanyan Fang

Open access · goldAbstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.3field-weighted citation impact, top 43% 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

5 citing papers in PubMed, 8 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

4 authors at 2 institutions in 1 country.

Ling XinThe First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Mei Shan Road, Shu Shan District, Hefei, Anhui, 230031, People's Republic of China.
Jian LiuThe First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Mei Shan Road, Shu Shan District, Hefei, Anhui, 230031, People's Republic of China. liujianahzy@126.com.
Yongjian ZhuSchool of Management, University of Science and Technology of China, 96 Jin Zhai Road, Bao He District, Hefei, Anhui, 230026, People's Republic of China.
Yanyan FangThe First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Mei Shan Road, Shu Shan District, Hefei, Anhui, 230031, People's Republic of China.
Anhui University of Traditional Chinese Medicine · CNUniversity of Science and Technology of China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients with ankylosing spondylitis (AS) have reported that their pain becomes worse when the local weather changes. However, there is limited evidence verifying the short-term associations between meteorological factors and outpatient visits for patients with AS. Therefore, this study evaluates this possible association.

methodsMeteorological data and data on daily AS outpatient visits to a general hospital in Hefei, China, from 2014 to 2019 were collected and analysed. Distributed lag nonlinear models and Poisson regression models were employed to determine the association between weather conditions and outpatient visits; the results were also stratified by gender and age.

resultsHigh relative humidity is significantly associated with all patient visits in lag 1 (RR = 1.113, 95% CI 1.021 to 1.213) and lag 7 days (RR = 1.115, 95% CI 1.014 to 1.227). A low relative risk to the nadir is observed in lag 4 days (RR = 0.920, 95% CI 0.862 to 0.983). Male and young patients (< 65 years) are more vulnerable to damp weather, and elderly people (≥ 65 years) are significantly affected by high temperatures in lag 7 days (RR = 3.004, 95% CI 1.201 to 7.510).

conclusionsOur findings suggest a potential relationship between exposure to weather conditions and increased risk of AS outpatient visits. These results can aid hospitals in preparing for and managing hospital visits by AS patients when the local weather conditions change.

Indexed as

Spondylitis, AnkylosingAgedChinaHot TemperatureHumansMaleRiskTemperatureWeatherAnkylosing spondylitisDistributed lag nonlinear modelRelative humidityTemperatureWeather conditions

Identifiers

PMID34311737
PMCPMC8314534
OpenAlexW3183354869

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.