Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

178 questions · 196 findings · 90 reviews

No studies found 49 · 25%GRADE not reported 31 · 15.8%Very low 29 · 14.8%Low 40 · 20.4%Moderate 38 · 19.4%High 9 · 4.6%

Country-level periodontal disease prevalence (Global Burden of Disease) vs Low vs high periodontal disease prevalence

Oral health-related quality of life · people aged 60 years and older living in the community

OHRQoL did not differ significantly by country-level periodontal disease prevalence; no pooled estimate was reported in the text (ungraded).

1 finding from 1 review

Country-level income (World Bank income classification) vs Higher- vs lower-income country categories

Oral health-related quality of life · people aged 60 years and older living in the community

Community-dwelling older adults in higher-income countries had better OHRQoL than those in lower-income countries (77.9, 95% CI 70.2 to 85.6 vs 66.9, 95% CI 56.7 to 77.0); the difference by income was statistically significant (ungraded).

2 findings from 1 review

Country-level income inequality (Gini index) vs Lower vs higher income inequality categories

Oral health-related quality of life · people aged 60 years and older living in the community

Older adults in countries with relative income equality (low Gini index) had markedly higher OHRQoL (91.3, 95% CI 90.0 to 92.6) than those in less equal countries; the difference by Gini index was statistically significant (ungraded).

4 findings from 1 review
Show 1 more finding

Human Development Index (HDI) vs Higher vs lower HDI categories

Oral health-related quality of life · people aged 60 years and older living in the community

Older adults in higher-HDI countries had better OHRQoL (high 79.9, 95% CI 74.4 to 85.5; very high 78.4, 95% CI 71.1 to 85.8) than those in medium-HDI countries (63.5, 95% CI 54.3 to 72.7); the difference by HDI was statistically significant (ungraded).

3 findings from 1 review

Country-level unemployment rate vs Higher vs lower unemployment-rate categories

Oral health-related quality of life · people aged 60 years and older living in the community

OHRQoL did not differ significantly across country-level unemployment-rate categories; no pooled estimate was reported in the text (ungraded).

1 finding from 1 review

Health expenditure per capita vs Higher vs lower per-capita health expenditure categories

Oral health-related quality of life · people aged 60 years and older living in the community

OHRQoL did not differ significantly across per-capita health-expenditure categories; no pooled estimate was reported in the text (ungraded).

1 finding from 1 review

Country-level edentulism prevalence (Global Burden of Disease) vs Low vs high edentulism prevalence

Oral health-related quality of life · people aged 60 years and older living in the community

OHRQoL did not differ significantly by country-level edentulism prevalence; no pooled estimate was reported in the text (ungraded).

1 finding from 1 review

Out-of-pocket health expenditure vs Lower vs higher out-of-pocket expenditure categories

Oral health-related quality of life · people aged 60 years and older living in the community

Lower out-of-pocket health expenditure was associated with better OHRQoL (83.9, 95% CI 75.2 to 92.6 vs 67.5, 95% CI 58.5 to 76.5); the difference was statistically significant (ungraded).

2 findings from 1 review

Country-level dental caries prevalence (Global Burden of Disease) vs Low vs high dental caries prevalence

Oral health-related quality of life · people aged 60 years and older living in the community

Lower country-level dental caries prevalence was associated with better OHRQoL (low-prevalence pooled mean 81.5, 95% CI 76.5 to 86.6, higher than high-prevalence countries); statistically significant (ungraded).

1 finding from 1 review

LABA/LAMA vs LABA plus inhaled corticosteroid (ICS)

Change in SGRQ total score · stable COPD

Long‐acting muscarinic antagonist (LAMA) plus long‐acting… showed no clear difference in quality of life as measured by SGRQ total score change from baseline… compared with LABA plus inhaled corticosteroid (ICS) (moderate certainty).

1 finding from 1 review

COURT ORDERED OUTPATIENT COMMITMENT vs ENTIRELY VOLUNTARY CARE

Patient level outcomes: 2. Quality of life: victimisation ‐ by 11‐12 months · people with severe mental disorders

COURT ORDERED OUTPATIENT COMMITMENT may leads to lower participant level outcomes: 5. Quality of life: victimisation by 11… compared with ENTIRELY VOLUNTARY CARE (low certainty).

1 finding from 1 review

Tiotropium vs placebo

Number of patients with a clinically significant worsening (≥ 4 units) in quality of life (SGRQ) · people with COPD who have smoked for ≥ 10 pack‐years

Tiotropium leads to lower number of patients with a clinically significant worsening (≥ 4… compared with placebo (high certainty).

1 finding from 1 review

Tiotropium vs placebo

Quality of life: number of participants with clinically significant improvement (≥ 4 units) in SGRQ total score · people with COPD who have smoked for ≥ 10 pack‐years

Tiotropium leads to higher number of patients with a clinically significant improvement (≥ 4… compared with placebo (high certainty).

1 finding from 1 review