Inflammatory bowel diseases · 2026
Systematic review and meta-analysis of childhood exposure to antibiotics and the subsequent risk of IBD.
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Størdal Ketil, Andersen Svend, Mårild Karl, Larsson Vilhelm, Imberg Henrik
Аннотация
BACKGROUND: Antibiotic use in early childhood may alter the developing microbiome and has been proposed as a risk factor for inflammatory bowel disease (IBD). We conducted a systematic review to examine the association between childhood antibiotic use and subsequent risk of IBD.
METHODS: In a systematic literature search, we identified cohort and case-control studies reporting the association between antibiotic use (exposure age <1 to 17 years) and development of IBD. MEDLINE and EMBASE databases were searched from inception through December 31, 2024. Studies reporting a hazard ratio, odds ratio, or risk ratio (RR) were included. To account for heterogeneity, pooled estimates were calculated using the DerSimonian-Laird random-effects model. Estimates were adjusted for potential confounding as reported in the original studies.
RESULTS: We identified 10 studies, of which 8 (n = 2783 cases) reported associations between childhood antibiotics and IBD risk. Additionally, 2 studies on Crohn's disease (CD) and 1 on ulcerative colitis were included in disease-specific analyses. In pooled analyses, antibiotic exposure compared with no exposure was associated with increased risk of IBD (RR, 1.42; 95% confidence interval [CI], 1.23-1.66), CD (RR, 1.59; 95% CI, 1.39-1.81), and ulcerative colitis (RR, 1.23; 95% CI, 1.08-1.40). Heterogeneity was low to moderate (I2 = 0%-35%), and funnel plots did not indicate publication bias (Egger's test, P = .12-.43). Adjustment for infections did not attenuate the association between childhood antibiotic exposure and IBD development.
CONCLUSIONS: While causal interpretation should be cautious, childhood exposure to antibiotics was associated with an increased risk of later IBD, particularly for CD.
METHODS: In a systematic literature search, we identified cohort and case-control studies reporting the association between antibiotic use (exposure age <1 to 17 years) and development of IBD. MEDLINE and EMBASE databases were searched from inception through December 31, 2024. Studies reporting a hazard ratio, odds ratio, or risk ratio (RR) were included. To account for heterogeneity, pooled estimates were calculated using the DerSimonian-Laird random-effects model. Estimates were adjusted for potential confounding as reported in the original studies.
RESULTS: We identified 10 studies, of which 8 (n = 2783 cases) reported associations between childhood antibiotics and IBD risk. Additionally, 2 studies on Crohn's disease (CD) and 1 on ulcerative colitis were included in disease-specific analyses. In pooled analyses, antibiotic exposure compared with no exposure was associated with increased risk of IBD (RR, 1.42; 95% confidence interval [CI], 1.23-1.66), CD (RR, 1.59; 95% CI, 1.39-1.81), and ulcerative colitis (RR, 1.23; 95% CI, 1.08-1.40). Heterogeneity was low to moderate (I2 = 0%-35%), and funnel plots did not indicate publication bias (Egger's test, P = .12-.43). Adjustment for infections did not attenuate the association between childhood antibiotic exposure and IBD development.
CONCLUSIONS: While causal interpretation should be cautious, childhood exposure to antibiotics was associated with an increased risk of later IBD, particularly for CD.