Country-level income (World Bank income classification) vs Higher- vs lower-income country categories
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).
- Association between oral health-related quality of life and structural determinants of health among elderly… 2025 All outcomesCommunity-dwelling older adults across 25 countries · High-middle to high incomeMEAN 77.9 [70.2, 85.6]Studies not reportedGRADE not reported
- Association between oral health-related quality of life and structural determinants of health among elderly… 2025 All outcomesCommunity-dwelling older adults across 25 countries · Low-middle incomeMEAN 66.9 [56.7, 77.0]Studies not reportedGRADE not reported