Evidence map›Paper›PMID 33088444›Full record

ArticleInternational journal of preventive medicine2020

Prevalence of Multiple Sclerosis (MS) in Zanjan Province of Iran.

Mahsa Ghajarzadeh, Abbas R Foroushani, Parviz Ghezelbash, Abdoreza Ghoreishi, Mehdi Maghbooli, Mehran Yousefi, Babak K Rahgoshai, Farhad G Maemodan, Mehdi Mohammadifar, Mohammad A Sahraian

Abstract read
In one paragraph

Article in International journal of preventive medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 2 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

6 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Prevalence of multiple sclerosis (MS) in Iran: a systematic review and meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Pooled it
  3. Review
  4. Article
  5. Article
  6. 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

10 authors.

Mahsa GhajarzadehMultiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
Abbas R ForoushaniDepartment of Epidemiology and Biostatistics, School of Public Health, Tehran, Iran.
Parviz GhezelbashDepartment of Radiology, Vali-e-asr Hospital, Zanjan University of Medical Sciences, Zanjan, Iran.
Abdoreza GhoreishiDepartment of Neurology, Vali-e-asr Hospital, Zanjan University of Medical Sciences, Zanjan, Iran.
Mehdi MaghbooliDepartment of Neurology, Vali-e-asr Hospital, Zanjan University of Medical Sciences, Zanjan, Iran.
Mehran YousefiDepartment of Neurology, Vali-e-asr Hospital, Zanjan University of Medical Sciences, Zanjan, Iran.
Babak K RahgoshaiDepartment of Neurology, Vali-e-asr Hospital, Zanjan University of Medical Sciences, Zanjan, Iran.
Farhad G MaemodanDepartment of Neurology, Vali-e-asr Hospital, Zanjan University of Medical Sciences, Zanjan, Iran.
Mehdi MohammadifarDepartment of Radiology, Vali-e-asr Hospital, Zanjan University of Medical Sciences, Zanjan, Iran.
Mohammad A SahraianMultiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe prevalence of multiple sclerosis (MS) varies in different geographical regions and has dramatically increased in Iran. Revealing the high prevalence rate draws the attention of policymakers and helps them allocate necessary resources. The aim of this study is to determine the prevalence of MS in Zanjan province of Iran.

methodsWe included all registered residents of Zanjan province with MS on the prevalence day (July 31, 2019). All cases met the McDonald criteria. All registered cases in Zanjan MS society were identified as index cases. Data regarding patient's national code, gender, age, age at the first symptom onset, city of residence, marital status, education level, occupation, ethnicity, family history of MS and the time span between symptom's onset and disease diagnosis were recorded.

resultsWe identified 758 patients, 551 of whom (72.7%) were female. The mean age at the first symptom onset was 28.9 ±8.7 years old. The crude prevalence was 71.6 per 100,000 population (95% CI 66.6-76.9). The disease was most prevalent in Zanjan city (100.5 per 100,000). The gender-specific prevalence per 100,000 population was 105.4 for women (95% CI: 96.8-114.6) and 38.7 for men (95% CI: 33.6-44.1), with female to male ratio of 2.6. The standardized mortality ratio (SMR) was calculated as expected/observed for both men and women as 2.3 (207/88.2) (551/234.1).

conclusionsOur data confirm that the MS prevalence rate is high in Zanjan province of Iran.

Indexed as

EpidemiologyIranmultiple sclerosisprevalence

Identifiers

PMID33088444
PMCPMC7554562

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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.