Evidence map›Paper›PMID 35139138›Full record

ArticlePloS one2022

Prevalence and determinants of anemia among Iranian population aged ≥35 years: A PERSIAN cohort-based cross-sectional study.

Mohammad Zamani, Hossein Poustchi, Amaneh Shayanrad, Farhad Pourfarzi, Mojtaba Farjam, Kourosh Noemani, Ebrahim Ghaderi, Vahid Mohammadkarimi, Mahmood Kahnooji, Fariborz Mansour-Ghanaei and 14 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 6% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Observational
  6. Association Between Gravidity and Anemia in Tabari Cohort Population: A Case-Control Study.Indian journal of hematology & blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion · 2025
    Article
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  8. Article
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  12. Assessment of trace element and mineral levels in students from Turkmenistan in comparison to Iran and Russia.Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2024
    Article
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  14. 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

24 authors at 18 institutions in 1 country.

Mohammad ZamaniDigestive Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Hossein PoustchiLiver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran.ORCID 0000-0003-4566-3628
Amaneh ShayanradLiver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Farhad PourfarziDigestive Disease Research Center, Ardabil University of Medical Sciences, Ardabil, Iran.
Mojtaba FarjamNoncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran.
Kourosh NoemaniDepartment of Disease Prevention and Control, Deputy of Health Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Ebrahim GhaderiSocial Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran.
Vahid MohammadkarimiDepartment of Internal Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Mahmood KahnoojiDepartment of Internal Medicine, Faculty of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
Fariborz Mansour-GhanaeiGastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran.
Ayoob RastegarNon-Communicable Diseases Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran.
Ali MousavizadehSocial Determinants of Health Research Center, Yasuj University of Medical Sciences, Yasuj, Iran.
Shideh RafatiSocial Determinants in Health Promotion Research Center, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
Masoumeh Ghoddusi JohariBreast Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Mahmood MoosazadehGastrointestinal Cancer Research Center, Non-Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran.
Alizamen SalehifardjouneghaniModeling in Health Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran.
Alireza OstadrahimiNutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Iraj MohebbiSocial Determinants of Health Research Center, Urmia University of Medical Sciences, Urmia, Iran.
Alireza KhorramHealth Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
Fatemeh Ezzodini ArdakaniDepartment of Oral and Maxillofacial Radiology, Faculty of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Maryam SharafkhahLiver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Yahya PasdarResearch Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
Anahita SadeghiDigestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran.ORCID 0000-0001-9564-4631
Reza MalekzadehDigestive Oncology Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran.ORCID 0000-0002-9820-6335
Tehran University of Medical Sciences · IRShiraz University of Medical Sciences · IRAhvaz Jundishapur University of Medical Sciences · IRArdabil University of Medical Sciences · IRFasa University of Medical Sciences · IRGuilan University of Medical Sciences · IRHormozgan University of Medical Sciences · IRKermanshah University of Medical Sciences · IRKurdistan University of Medical Sciences · IRMazandaran University of Medical Sciences · IRRafsanjan University of Medical Sciences · IRSabzevar University of Medical Sciences · IRShahid Sadoughi University of Medical Sciences and Health Services · IRShahrekord University of Medical Sciences · IRTabriz University of Medical Sciences · IRUrmia University · IRYasuj University of Medical Sciences · IRZahedan University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSo far, no comprehensive studies have been performed to assess burden and determinants of anemia in Iran. In the present study, we aimed to answer this query using the data obtained from the Prospective Epidemiological Research Studies in IrAN (PERSIAN).

methodsIn this cross-sectional study, we included 161,686 adult participants (aged 35 years and older) from 16 provinces of Iran. Anemia was defined as a hemoglobin concentration of <13 g/dL in males and <12 g/dL in females. To evaluate the association between anemia and different factors, we used the multivariable Poisson regression analysis with robust variance by applying adjusted prevalence ratio (PR) with 95% confidence interval (CI).

resultsOf the total number of subjects, 72,387 (44.77%) were male and others were female. Mean age was 49.39±9.15 years old. The overall age- and sex-standardized prevalence of anemia was 8.83% (95% CI: 8.70-8.96%) in the included population. The highest and the lowest age- and sex-standardized prevalence of anemia pertained to Hormozgan (37.41%, 95% CI: 35.97-38.85%) and Kurdistan (4.57%, 95% CI: 3.87-5.27%) provinces, respectively. Being female (PR = 2.97), rural residence (PR = 1.24), being retired (PR = 1.53) and housewife (PR = 1.11), third and fourth wealth status quartiles (PR = 1.09 and PR = 1.11, respectively), being underweight (PR = 1.49), drug user (PR = 1.35), inadequate sleep (PR = 1.16), poor physical activity (PR = 1.15), diabetes (PR = 1.09), renal failure (PR = 2.24), and cancer (PR = 1.35) were associated with increased risk of anemia. On the other hand, illiteracy (PR = 0.79) and abdominal obesity (PR = 0.77) decreased the risk of anemia.

conclusionsAccording to the results, a variable prevalence of anemia was observed across the included provinces. We tried to provide an informative report on anemia prevalence for health professionals and authorities to take measures for identification and management of the cases of anemia in high-prevalence areas.

Indexed as

AdultAgedAged, 80 and overAge FactorsAnemiaCohort StudiesCross-Sectional StudiesFemaleHumansIranMaleMiddle AgedPrevalenceRisk FactorsSocial Determinants of HealthSocioeconomic Factors

Identifiers

PMID35139138
PMCPMC8827433
OpenAlexW4210918731

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.