Evidence map›Paper›PMID 24969611›Full record

ArticlePublic health nutrition2015

Vitamin B12 serostatus in Colombian children and adult women: results from a nationally representative survey.

Oscar F Herrán, Julia B Ward, Eduardo Villamor

Abstract read
In one paragraph

Article in Public health nutrition, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

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

  1. Pooled it
  2. Vitamin BClinical nutrition ESPEN · 2025
    Observational
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. 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

3 authors.

Oscar F Herrán1School of Nutrition and Dietetics,Faculty of Health,Industrial University of Santander,Carrera 32 No. 29-31,Office 304,Bucaramanga,Colombia.
Julia B Ward2Department of Epidemiology,University of Michigan School of Public Health,Ann Arbor,MI,USA.
Eduardo Villamor2Department of Epidemiology,University of Michigan School of Public Health,Ann Arbor,MI,USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveVitamin B12 deficiency is associated with many adverse health outcomes and is highly prevalent worldwide. The present study assesses the prevalence of vitamin B12 deficiency and marginal deficiency in Colombian children and women and examines the sociodemographic correlates of serum vitamin B12 concentrations in these groups.

designCross-sectional, nationally representative survey.

settingColombia. SUBJECTS: Children <18 years old (n 7243), pregnant women (n 1781), and non-pregnant women 18-49 years old (n 499).

resultsThe overall prevalence of vitamin B12 deficiency (serum vitamin B12<148 pmol/l) and marginal deficiency (serum vitamin B12=148-221 pmol/l) was, respectively, 6.6 % (95 % CI 5.2%, 8.3%) and 22.5% (95% CI 21.1%, 23.9%). Pregnant women had the highest prevalence of deficiency (18.9 %; 95 % CI 16.6 %, 21.5 %) compared with non-pregnant adult women (18.5%; 95% CI 4.4%, 53.1%) and children (2.8 %; 95 % CI 2.3 % %, 3.3 %). In multivariable analyses among children, mean serum vitamin B12 was positively associated with female sex (12 pmol/l higher compared with males; P=0.004), secondary or higher education of the household head (12 pmol/l higher compared with primary or less; P=0.009) and food security (21 pmol/l higher compared with severe food insecurity; P=0.003). In multivariable analyses among pregnant women, mean serum vitamin B12 was positively associated with education of the household head and inversely associated with living in the National territories, Eastern or Pacific regions.

conclusionsThe prevalence of vitamin B12 deficiency and marginal deficiency in Colombian women and children is substantial. The burden falls largely on adult women, those with lowest education and those living in the poorest, most rural regions of the country.

Indexed as

Child Nutritional Physiological PhenomenaNutritional StatusPrenatal Nutritional Physiological PhenomenaAdolescentAdultChildChild, PreschoolColombiaCross-Sectional StudiesFemaleHumansInfantMaleMiddle AgedNutrition SurveysPregnancyVitamin B 12Colombia

Identifiers

PMID24969611
PMCPMC10271506

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.