Evidence map›Paper›PMID 26382591›Full record

ArticleBMC neurology2015

Analysis of risk factors for medication-overuse headache relapse: a clinic-based study in China.

Zhihui Yan, Yuan Chen, Chunfu Chen, Congcong Li, Xiaojun Diao

Abstract readComparative Study
In one paragraph

Article in BMC neurology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–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

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
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

5 authors.

Zhihui YanDepartment of Neurology, Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, Jinan, Shandong, 250021, China. yanzhihui7602@163.com.
Yuan ChenDepartment of Neurology, Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, Jinan, Shandong, 250021, China. chenyuan815012903@qq.com.
Chunfu ChenDepartment of Neurology, Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, Jinan, Shandong, 250021, China. chencf301@163.com.
Congcong LiDepartment of Neurology, Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, Jinan, Shandong, 250021, China. lccbright88@163.com.
Xiaojun DiaoDepartment of Neurology, Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, Jinan, Shandong, 250021, China. 15969683747@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMedication overuse headache (MOH) is the third most prevalent headache type after migraine and tension-type headache. A large number of studies on the long-term prognosis have shown that MOH has a high relapse rate after treatment. Although MOH relapse-related risk factors have been reported, no related research has been performed in China. Therefore, the purpose of this study was to analyze and evaluate the risk factors for MOH relapse in China.

methodsEighty-six out-patients of Shandong Provincial Hospital who were initially diagnosed with MOH, and who had successful withdrawal treatment within 2 months, were chosen from March 2012 to July 2013. All subjects were followed up by the investigators of this study. Of the 86 subjects, 27 who had relapsed were compared with 59 who had not relapsed (i.e. the controls). Based on a standardized questionnaire, a database was created (with Microsoft Excel 2010). The data, which included 38 indexes, were analyzed by univariate analysis with chi-square test, Fisher's exact test, t-test, or paired rank test. The statistically correlated (P<0.05) variables were chosen as the independent variables, thereby enabling the calculation of the non-conditional multivariate stepwise logistic regression.

resultsThe independent risk factors for medication-overuse headache relapse were determined as headache frequency before drug withdrawal, duration of primary headache, and headache frequency after drug withdrawal.

conclusionHeadache frequency before drug withdrawal, duration of primary headache, and headache frequency after drug withdrawal may be the independent risk factors for MOH relapse in China.

Indexed as

AdolescentAdultAgedAnalgesicsAnti-Inflammatory Agents, Non-SteroidalBenzodiazepinesDrugs, Chinese HerbalFemaleFollow-Up StudiesHeadache Disorders, SecondaryHumansMaleMiddle AgedMigraine DisordersPrognosisRecurrenceAnalgesicsAnti-Inflammatory Agents, Non-SteroidalBenzodiazepinesDrugs, Chinese Herbal

Identifiers

PMID26382591
PMCPMC4574711

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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.