Evidence map›Paper›PMID 32210606›Full record

ArticleInternational journal of general medicine2020

Association of Serum Levels of Vitamin D with Blood Pressure Status in Northern Iranian Population: The PERSIAN Guilan Cohort Study (PGCS).

Farahnaz Joukar, Mohammadreza Naghipour, Soheil Hassanipour, Arsalan Salari, Ahmad Alizadeh, Hamid Saeidi-Saedi, Fariborz Mansour-Ghanaei

Open access · goldAbstract read
In one paragraph

Article in International journal of general medicine, 2020. 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
2.6field-weighted citation impact, top 10% 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
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  11. Vitamin D Status in Hospitalized Patients with SARS-CoV-2 Infection.The Journal of clinical endocrinology and metabolism · 2021
    Article
  12. The link between vitamin D deficiency and COVID-19.Lung India : official organ of Indian Chest Society · 2021
    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

7 authors at 1 institution in 1 country.

Farahnaz Joukar *Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran.
Mohammadreza Naghipour *Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran.
Soheil HassanipourGastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran.
Arsalan SalariDepartment of Cardiology, Cardiovascular Diseases Research Center, Heshmat Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran.
Ahmad AlizadehCaspian Digestive Disease Research Center, Guilan University of Medical Sciences, Rasht, Iran.
Hamid Saeidi-SaediGI Cancer Screening and Prevention Research Center, Guilan University of Medical Sciences, Rasht, Iran.
Fariborz Mansour-GhanaeiGastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran.ORCID 0000-0001-6747-0232
Guilan University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEvidence in the last decades has indicated an association between vitamin D and cardiovascular risk factors including blood pressure. The present study aimed to determine whether serum 25-hydroxyvitamin D is independently associated with blood pressure in a large population-based study.

methodsThe study was based on subjects from PERSIAN Guilan Cohort Study (PGCS), a prospective, population-based cohort study in Guilan, Iran. In 9520 men and women, aged 35-70 years, serum 25-hydroxyvitamin D, systolic and diastolic blood pressure were measured. Multiple logistic and linear regression analyses were conducted with adjustments for demographic factors (age and gender), anthropometric characteristics (waist circumference and body mass index), lifestyle variables (physical activity, alcohol, and smoking consumption), and renal function (serum creatinine).

resultsFully adjusted linear regression analyses revealed a weak but statistically significant negative association between serum 25-hydroxyvitamin D levels and systolic blood pressure (β = -0.02, 95% CI= -0.052 to -0.0001, P-value=0.04), whereas vitamin D status was not significantly associated with diastolic blood pressure (β = -0.01, 95% CI= -0.026 to 0.009, P-value=0.3). Serum 25-hydroxyvitamin D status showed no significant association with the presence of hypertension (OR 1.09, 95% CI=0.94 to 1.25 for the lowest (25OHD <12 ng/mL) versus the highest (25OHD ≥20 ng/mL) category).

conclusionLower serum vitamin 25 (OH) D levels were associated with higher systolic blood pressure; however, it was not associated with diastolic blood pressure and presence of hypertension.

Indexed as

blood pressureGuilan cohort studyIranvitamin D

Identifiers

PMID32210606
PMCPMC7073441
OpenAlexW3010819522

What OpenQuestion holds

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LicenceCC BY-NC
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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.