Associating the blood vitamin A, C, D and E status with tuberculosis: a systematic review and meta-analysis of observational studies

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#ascorbic-acid #humans #observational-studies-as-topic #tuberculosis #vitamin-a

Associating the blood vitamin A, C, D and E status with tuberculosis: a systematic review and meta-analysis of observational studies

Xu et al., 2022 | Food Funct | Meta Analysis

Citation

Xu Fei, Ma Baolan, ... Wang Jinyu. Associating the blood vitamin A, C, D and E status with tuberculosis: a systematic review and meta-analysis of observational studies. Food Funct. 2022-May-10;13(9):4825-4838. doi:10.1039/d1fo02827h

Abstract

Vitamins may play an important role in preventing tuberculosis. The purpose of this work is to associate the vitamin A, C, D and E status with tuberculosis through a systematic review and meta-analysis of observational studies. Web of Science, Pubmed and Scopus were searched from the earliest date of the database to May 2021. The standardized mean differences (SMDs) of blood vitamin concentrations and odds ratios (ORs) of vitamin deficiency between the tuberculosis patients and the control subjects were used as the main effect sizes. The effect sizes were pooled by a random-effects model using the Stata software (Version 11). The vitamin A concentration was significantly lower in the tuberculosis group than in the control group [SMD (95% CI): -0.96 (-1.31, -0.61), p < 0.01]. Only two case-control studies reported the vitamin C concentrations in the tuberculosis group versus the control group, and the difference was not significant. The blood vitamin D concentration was significantly lower in the tuberculosis group than in the control group [SMD (95% CI): -0.53 (-0.75, -0.32), p < 0.01]. Consistently, the number of people with vitamin D deficiency was significantly higher in the tuberculosis group [OR (95% CI): 2.29 (1.55, 3.37), p < 0.01]. The vitamin E concentration was significantly lower in the tuberculosis group than in the control group [SMD (95% CI): -0.34 (-0.61, -0.08), p = 0.01]. The current meta-analysis suggested a negative association between the vitamin A, D and E status and tuberculosis, and the association between the vitamin C status and tuberculosis was inconclusive due to the limited studies available.

Key Findings

The current meta-analysis suggested a negative association between the vitamin A, D and E status and tuberculosis, and the association between the vitamin C status and tuberculosis was inconclusive due to the limited studies available.

Outcomes Measured

  • Requires manual extraction

Population

Field Value
Population See abstract
Sample Size See abstract
Age Range See abstract
Condition deficiency

MeSH Terms

  • Ascorbic Acid
  • Humans
  • Observational Studies as Topic
  • Tuberculosis
  • Vitamin A
  • Vitamin D
  • Vitamin D Deficiency
  • Vitamins

Evidence Classification

  • Level: Meta Analysis
  • Publication Types: Journal Article, Meta-Analysis, Systematic Review
  • Vertical: vitamin-a

Provenance

Source extracted via PubMed E-utilities API on 2026-04-09