ArticleCanadian family physician Medecin de famille canadien2004
Vitamin B12 deficiency. Prevalence among South Asians at a Toronto clinic.
Article in Canadian family physician Medecin de famille canadien, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- B vitamins and cardiovascular health: mechanisms, clinical evidence, and precision prevention strategies.Nutrition & metabolism · 2026Review
- Impact of metformin treatment on cobalamin status in persons with type 2 diabetes.Nutrition reviews · 2024Review
- Review
- Review
- Long-term metformin therapy and vitamin B12 deficiency: An association to bear in mind.World journal of diabetes · 2021Review
- The Role of Micronutrients in Ageing Asia: What Can Be Implemented with the Existing Insights.Nutrients · 2021Review
- Factors correlating to the propensity of general practitioners to substitute borderline vitamin B12 deficiency.Scandinavian journal of primary health care · 2018Article
- Association between MTHFR 677C>T Polymorphism and Vitamin B12 Deficiency: A Case-control Study.Journal of medical biochemistry · 2018Article
- Vitamin B12 Status of Various Ethnic Groups Living in New Zealand: An Analysis of the Adult Nutrition Survey 2008/2009.Nutrients · 2018Article
- Bariatric Nutrition Guidelines for the Indian Population.Obesity surgery · 2016Article
- Examining the Association between Vitamin B12 Deficiency and Dementia in High-Risk Hospitalized Patients.The journal of nutrition, health & aging · 2015Article
- The prevalence of cobalamin deficiency among vegetarians assessed by serum vitamin B12: a review of literature.European journal of clinical nutrition · 2014Review
- Pigmentation in vitamin B12 deficiency masquerading Addison's pigmentation: A rare presentation.Indian journal of endocrinology and metabolism · 2013Article
- Glossitis secondary to vitamin B12 deficiency anemia.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2013Article
- Spinal MR imaging in Vitamin B12 deficiency: Case series; differential diagnosis of symmetrical posterior spinal cord lesions.Annals of Indian Academy of Neurology · 2013Article
- Use of serum vitamin B12 level as a marker to differentiate idiopathic noncirrhotic intrahepatic portal hypertension from cryptogenic cirrhosis.Digestive diseases and sciences · 2013Article
- An investigation of vitamin B12 deficiency in elderly inpatients in neurology department.Neuroscience bulletin · 2009Article
- Vitamin B12 and health.Canadian family physician Medecin de famille canadien · 2008Review
- Serum B12, Homocysteine Levels, and their Effect on Peripheral Neuropathy in Parkinson's Disease: Indian Cohort.Annals of Indian Academy of NeurologyArticle
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo estimate the prevalence of vitamin B12 deficiency in adult South Asian patients.
designRetrospective chart review.
settingFamily practice clinic in Toronto, Ont.
participantsRecords of 988 South Asian patients.
interventionOf 1000 randomly selected records, we found 988 charts. From charts with at least one documented B12 level, we extracted data on age, mean corpuscular volume (MCV), hemoglobin and ferritin levels, and diet (if available). Descriptive and analytic statistics were calculated.
main outcome measuresLevels of serum B12 and factors associated with low levels of B12.
resultsB12 results were documented in 49% of charts; 46% of results showed deficiency. Patients older than 65 and vegetarians were more likely to be B12 deficient. Low serum B12 levels were positively correlated with low hemoglobin and ferritin levels and poorly correlated with low MCV levels.
conclusionMany more South Asian patients than patients in the general population have vitamin B12 deficiency. A vegetarian diet seems a strong risk factor. A single low result, however, might not indicate true B12 deficiency.
Indexed as
Identifiers
15171677PMC2214606What OpenQuestion holds
Registered trials
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