Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

21 questions · 24 findings · 2 reviews · Oral Health

No studies found 0 · 0%GRADE not reported 13 · 54.2%Very low 8 · 33.3%Low 0 · 0%Moderate 3 · 12.5%High 0 · 0%

Younger children's age (3-5 years) vs Older children (>5 years)

Poor oral health-related quality of life (OHRQoL) · Children aged 3-12 years

Children aged 3 years had higher odds of poor OHRQoL than older children (OR 2.00, 95% CI 1.42-2.57; 2 studies; ungraded).

2 findings from 1 review

All exposure-OHRQoL estimates pooled for publication-bias correction (meta-trim sensitivity); specific exposure set not defined in source vs Not specified

Poor oral health-related quality of life (OHRQoL) · Children aged 3-12 years

A trim-and-fill sensitivity analysis pooling every exposure estimate gave an overall OR of 0.17 (95% CI 0.13-0.21) after correcting for significant publication bias (Fig. 13); this combined estimate spans heterogeneous exposures and is a publication-bias sensitivity result (ungraded).

1 finding from 1 review

Periodontal disease (present) vs Individuals without periodontal disease (by LOA)

Poor oral health-related quality of life (OHRQoL) · Children aged 3-12 years

Periodontal disease was associated with higher odds of poor OHRQoL (OR 1.15, 95% CI 1.12-1.18; 3 studies; no heterogeneity; ungraded).

1 finding from 1 review

Higher dental caries experience vs Caries-free controls

Poor oral health-related quality of life (OHRQoL) · Children aged 3-12 years

Higher dental caries experience was associated with substantially higher odds of poor OHRQoL (OR 1.66, 95% CI 1.43-1.88; 6 studies; high heterogeneity I2=83.5%; ungraded).

1 finding from 1 review

Low maternal education (<=6 years of schooling) vs Higher maternal education (>6 years)

Poor oral health-related quality of life (OHRQoL) · Children aged 3-12 years

Lower maternal education was associated with poor OHRQoL (OR 1.12, 95% CI 1.00-1.23; 4 studies; high heterogeneity; CI lower bound at the null; ungraded).

1 finding from 1 review

Orthodontic treatment need vs No orthodontic treatment need

Poor oral health-related quality of life (OHRQoL) · Children aged 3-12 years

Orthodontic treatment need was associated with modestly higher odds of poor OHRQoL (OR 1.13, 95% CI 1.07-1.18; 3 studies; ungraded).

1 finding from 1 review

Edentulism (complete or partial missing teeth) vs Individuals without edentulism

Oral health-related quality of life · Indian elderly

One study found edentulism did not affect OHRQoL (dichotomous); ungraded.

1 finding from 1 review

Dental caries vs Caries-free controls

Oral health-related quality of life · Indians

In adolescents (10-19 years), dental caries was associated with poorer OHRQoL (pooled OR 3.92; 5 studies); ungraded.

3 findings from 1 review

Periodontal disease assessed by Community Periodontal Index (CPI) vs Individuals without periodontal disease (by CPI)

Oral health-related quality of life · Indian adults and elderly (general, police, teachers, institutionalised)

Evidence on periodontal disease (CPI) and OHRQoL is inconsistent across studies (very low certainty).

1 finding from 1 review

Malocclusion vs No malocclusion

Oral health-related quality of life · Indian children, adolescents and adults

Individuals with malocclusion had significantly higher odds of poor OHRQoL (pooled OR 5.44; 6 studies), but certainty is very low.

1 finding from 1 review

Prosthetic need vs Individuals without prosthetic need

Oral health-related quality of life · Indian elderly and general-population adults

Prosthetic need was significantly associated with poorer OHRQoL in both included studies (moderate certainty).

1 finding from 1 review

0-19 remaining teeth vs Individuals without functional edentulism

Oral health-related quality of life · Indian elderly

Evidence on functional edentulism and OHRQoL is inconsistent across two studies (very low certainty).

1 finding from 1 review

Periodontal disease assessed by loss of attachment (LOA / clinical attachment loss) vs Individuals without periodontal disease (by LOA)

Oral health-related quality of life · Indian adults and elderly (general, police, teachers, institutionalised)

Dichotomous evidence for periodontal disease (LOA) and OHRQoL was inconsistent across three studies; ungraded.

1 finding from 1 review