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Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

23 questions in 2 reviews · cluster CL0022

current versions
No studies 0 · 0%Ungraded 9 · 39.1%Very low 12 · 52.2%Low 1 · 4.3%Moderate 1 · 4.3%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Intervention categories, outcome domains and clusters are a proposed key pending human validation. Clear all filters

QuestionEffectEvidenceStatus / GRADE
Obesity or overweight (higher BMI, mostly WHO BMI ≥25/≥30; 2 studies used waist circumference) vs Normal weight (not overweight or obese)
Dental caries (study-defined binary; assessed by DMFT, number of dental caries, or dentist diagnosis) · Adults (≥18 years) · By confounder adjustment: adjusted
Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and… (2025)
OR 1.00 [0.89, 1.12]NRUngraded
Obesity or overweight (higher BMI, mostly WHO BMI ≥25/≥30; 2 studies used waist circumference) vs Normal weight (not overweight or obese)
Dental caries (study-defined binary; assessed by DMFT, number of dental caries, or dentist diagnosis) · Adults (≥18 years) · By region: West Asia
Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and… (2025)
OR 1.23 [0.96, 1.50]NRUngraded
Obesity or overweight (higher BMI, mostly WHO BMI ≥25/≥30; 2 studies used waist circumference) vs Normal weight (not overweight or obese)
Dental caries (binary; DMFT-based or dentist-diagnosed caries present) · Adults (≥18 years) · By BMI classification: overweight (vs study-defined non-overweight: normal or low weight)
Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and… (2025)
OR 0.99 [0.98, 1.00]NRUngraded
Obesity or overweight (higher BMI, mostly WHO BMI ≥25/≥30; 2 studies used waist circumference) vs Normal weight (not overweight or obese)
Dental caries (study-defined binary; assessed by DMFT, number of dental caries, or dentist diagnosis) · Adults (≥18 years) · By region: East Asia
Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and… (2025)
OR 1.02 [0.94, 1.11]NRUngraded
Obesity or overweight (higher BMI, mostly WHO BMI ≥25/≥30; 2 studies used waist circumference) vs Normal weight (not overweight or obese)
Dental caries (study-defined binary; assessed by DMFT, number of dental caries, or dentist diagnosis) · Adults (≥18 years) · By confounder adjustment: not adjusted
Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and… (2025)
OR 1.17 [1.04, 1.29]NRUngraded
Obesity or overweight (higher BMI, mostly WHO BMI ≥25/≥30; 2 studies used waist circumference) vs Normal weight (not overweight or obese)
Dental caries (study-defined binary; assessed by DMFT, number of dental caries, or dentist diagnosis) · Adults (≥18 years)
Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and… (2025)
OR 1.06 [0.98, 1.14]18 studies · 270408 participantsUngraded
Obesity or overweight (higher BMI, mostly WHO BMI ≥25/≥30; 2 studies used waist circumference) vs Normal weight (not overweight or obese)
Dental caries (study-defined binary; assessed by DMFT, number of dental caries, or dentist diagnosis) · Adults (≥18 years) · By sample size: n ≥ 5000
Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and… (2025)
OR 1.04 [0.92, 1.16]NRUngraded
Obesity or overweight (higher BMI, mostly WHO BMI ≥25/≥30; 2 studies used waist circumference) vs Normal weight (not overweight or obese)
Dental caries (binary; DMFT-based or dentist-diagnosed caries present) · Adults (≥18 years) · By BMI classification: obesity (vs study-defined non-obese: normal or low weight)
Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and… (2025)
OR 1.04 [0.85, 1.23]NRUngraded
Obesity or overweight (higher BMI, mostly WHO BMI ≥25/≥30; 2 studies used waist circumference) vs Normal weight (not overweight or obese)
Dental caries (study-defined binary; assessed by DMFT, number of dental caries, or dentist diagnosis) · Adults (≥18 years) · By sample size: n < 5000
Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and… (2025)
OR 1.13 [0.95, 1.30]NRUngraded
Overweight/obesity (combined) vs Normal weight (eutrophic)
Dental caries prevalence (any DMFT), dichotomous · Brazilian children/adolescents in permanent dentition (BMI classified by CDC 2000 growth charts)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
OR 1.18 [0.71, 1.95]3 studies · 1377 participantsVery low
Overweight/obesity (combined) vs Normal weight (eutrophic)
Dental caries prevalence (any DMFT), dichotomous · Brazilian children/adolescents in permanent dentition (BMI classified by WHO 2007 Z-score)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
OR 0.93 [0.78, 1.12]2 studiesLow
Overweight vs Normal weight (eutrophic)
Dental caries experience (dmft), continuous · Brazilian children in primary dentition (BMI classified by CDC 2000 growth charts)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
MD 0.31 [-0.10, 0.73]2 studies · 734 participantsVery low
Overweight vs Normal weight (eutrophic)
Dental caries experience (DMFT), continuous · Brazilian children/adolescents in permanent dentition (BMI classified by CDC 2000 growth charts)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
MD -0.06 [-1.03, 0.91]2 studies · 446 participantsVery low
Overweight/obesity (combined) vs Normal weight (eutrophic)
Dental caries prevalence (any DMFT), dichotomous · Brazilian children/adolescents in permanent dentition (BMI classified by WHO 2006 Z-score)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
Pooled effect not estimable (not shown in article); I2=85%; Very low2 studiesVery low
Obesity vs Normal weight (eutrophic)
Dental caries prevalence (any DMFT), dichotomous · Brazilian children/adolescents in permanent dentition (BMI classified by CDC 2000 growth charts)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
OR 2.53 [1.49, 4.29]2 studies · 659 participantsModerate
Obesity vs Normal weight (eutrophic)
Dental caries experience (dmft), continuous · Brazilian children in primary dentition (BMI classified by CDC 2000 growth charts)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
MD -0.34 [-0.96, 0.27]2 studies · 710 participantsVery low
Overweight vs Normal weight (eutrophic)
Dental caries prevalence (any DMFT), dichotomous · Brazilian children/adolescents in permanent dentition (BMI classified by CDC 2000 growth charts)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
OR 1.01 [0.43, 2.35]2 studies · 706 participantsVery low
Overweight/obesity (combined) vs Normal weight (eutrophic)
Dental caries prevalence (any dmft), dichotomous · Brazilian children under 5 years in primary dentition (BMI classified by WHO 2006 Z-score)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
OR 0.86 [0.60, 1.22]3 studiesVery low
Obesity vs Normal weight (eutrophic)
Dental caries prevalence (any dmft), dichotomous · Brazilian children in primary dentition (BMI classified by CDC 2000 growth charts)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
OR 0.44 [0.08, 2.61]2 studies · 709 participantsVery low
Obesity vs Normal weight (eutrophic)
Dental caries experience (DMFT), continuous · Brazilian children/adolescents in permanent dentition (BMI classified by CDC 2000 growth charts)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
MD 0.61 [0.08, 1.15]2 studies · 659 participantsVery low
Overweight/obesity (combined) vs Normal weight (eutrophic)
Dental caries prevalence (any DMFT), dichotomous · Brazilian children/adolescents (BMI classified by WHO 2007 percentile)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
OR 0.83 [0.35, 1.94]2 studies · 355 participantsVery low
Overweight/obesity (combined) vs Normal weight (eutrophic)
Dental caries prevalence (any dmft), dichotomous · Brazilian children in primary dentition (BMI classified by CDC 2000 growth charts)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
OR 0.83 [0.45, 1.54]2 studies · 826 participantsVery low
Overweight vs Normal weight (eutrophic)
Dental caries prevalence (any dmft), dichotomous · Brazilian children in primary dentition (BMI classified by CDC 2000 growth charts)
Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024)
OR 1.02 [0.69, 1.53]2 studies · 734 participantsVery low