Non-Cochrane · prevalence · PM42144904

A Systematic Review and Meta-Analysis of the Global Prevalence of Dry Mouth in Older Adults.

Kamnoedboon Porawit, Spyraki Foteini, Thomson W Murray, et al. · Gerodontology · 2026 · PubMed · doi:10.1111/ger.70076

Findings

9 findings

Population
Adults aged 50 years and older in population-representative samplesNot applicable (prevalence)Not applicable (prevalence)Xerostomia (self-reported dry mouth)
General population (community-dwelling and population-representative samples) · Sensitivity: excluding Albani et al. 2021 and Castrejon-Perez et al. 2023
Prevalence (%) 20 [18, 22]
GRADE not reported
32 studies
Adults aged 50 years and older in population-representative samplesNot applicable (prevalence)Not applicable (prevalence)Xerostomia (self-reported dry mouth)
General population (community-dwelling and population-representative samples) · Sensitivity: excluding Castrejon-Perez et al. 2023
Prevalence (%) 21 [19, 23]
GRADE not reported
33 studies
Population-representative samples of adults aged 50 years and olderNot applicable (prevalence review); xerostomiaNoneXerostomia (self-reported dry mouth)
Prevalence at time of survey · General population (community) samples worldwide
Prevalence, percent (random effects, Freeman-Tukey double arcsine, DerSimonian-Laird) 21 [19, 23]
GRADE not reported
34 studies · 1640079 participants
Population-representative samples of adults aged 50 years and olderNot applicable (prevalence review); xerostomiaNoneXerostomia (self-reported dry mouth)
Prevalence at time of survey · General population (community) samples worldwide · 95% prediction interval
Unresolved: the two extractors disagree on this row.
Prediction interval 11% to 34%
GRADE not reported
34 studies · 1640079 participants
Adults aged 50 years and older in population-representative samplesNot applicable (prevalence)Not applicable (prevalence)Xerostomia (self-reported dry mouth)
General population (community-dwelling and population-representative samples) · Sensitivity: excluding Albani et al. 2021
Prevalence (%) 20 [19, 22]
GRADE not reported
33 studies
Population-representative samples of adults aged 50 years and olderNot applicable (prevalence review); salivary gland hypofunctionNoneSalivary gland hypofunction by unstimulated whole saliva (UWS, 0.1 mL/min or less)
Prevalence at time of survey · General population (community) samples worldwide · 95% prediction interval
Unresolved: the two extractors disagree on this row.
Prediction interval 0% to 71%
GRADE not reported
3 studies · 1291 participants
Population-representative samples of adults aged 50 years and olderNot applicable (prevalence review); salivary gland hypofunctionNoneSalivary gland hypofunction by unstimulated whole saliva (UWS, 0.1 mL/min or less)
Prevalence at time of survey · General population (community) samples worldwide
Prevalence, percent (random effects, Freeman-Tukey double arcsine, DerSimonian-Laird) 12 [4, 24]
GRADE not reported
3 studies · 1291 participants
Population-representative samples of adults aged 50 years and olderNot applicable (prevalence review); salivary gland hypofunctionNoneSalivary gland hypofunction by stimulated whole saliva (SWS, 0.7 mL/min or less)
Prevalence at time of survey · General population (community) samples worldwide
Prevalence, percent (random effects, Freeman-Tukey double arcsine, DerSimonian-Laird) 13 [3, 28]
GRADE not reported
4 studies · 995 participants
Population-representative samples of adults aged 50 years and olderNot applicable (prevalence review); salivary gland hypofunctionNoneSalivary gland hypofunction by stimulated whole saliva (SWS, 0.7 mL/min or less)
Prevalence at time of survey · General population (community) samples worldwide · 95% prediction interval
Unresolved: the two extractors disagree on this row.
Prediction interval 0% to 77%
GRADE not reported
4 studies · 995 participants

Included primary studies 37

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Lin 2022
Physical Frailty and Oral Frailty Associated with Late-Life Depression in Community-Dwelling Older Adults.
PMID:35330459
20224 other reviewsXerostomia (self-reported dry mouth)not extracted yet
Iwasaki 2024
Prevalence of oral frailty and its association with dietary variety, social engagement, and physical frailty: Results from the Oral…
PMID:38390632
20241 other reviewXerostomia (self-reported dry mouth)not extracted yet
Shiota 2023
Oral Hypofunction and Risk of Weight Change among Independent Older Adults.
PMID:37892444
20231 other reviewXerostomia (self-reported dry mouth)not extracted yet
Tanaka 2023
Oral frailty five-item checklist to predict adverse health outcomes in community-dwelling older adults: A Kashiwa cohort study.
PMID:37661091
20231 other reviewXerostomia (self-reported dry mouth)not extracted yet
Abbas 2021
Oral status and homebound status: A 6-year bidirectional exploratory prospective cohort study.
PMID:34601759
2023this review onlyXerostomia (self-reported dry mouth)not extracted yet
Abe 2024
Effect of oral health on functional disability and mortality in older adults in Japan: a cohort study.
PMID:39427678
2024this review onlyXerostomia (self-reported dry mouth)not extracted yet
Albani 2021
Associations of poor oral health with frailty and physical functioning in the oldest old: results from two studies in England and Japan.
PMID:33736595
2021this review onlyXerostomia (self-reported dry mouth)not extracted yet
Anttila 1998
Depressive symptoms as an underlying factor of the sensation of dry mouth.
PMID:9560872
1998this review onlyXerostomia (self-reported dry mouth)not extracted yet
Astrom 2019
Self-reported dry mouth among ageing people: a longitudinal, cross-national study.
PMID:30584805
2019this review onlyXerostomia (self-reported dry mouth)not extracted yet
Bakker 2020
Self-reported oral health problems and the ability to organize dental care of community-dwelling elderly aged ≥75 years.
PMID:32615975
2020this review onlyXerostomia (self-reported dry mouth)not extracted yet
Benn 2015
Occurrence and impact of xerostomia among dentate adult New Zealanders: findings from a national survey.
PMID:25330435
2015this review onlyXerostomia (self-reported dry mouth)not extracted yet
Castrejon-Perez 2023
Frailty index and ten oral conditions in the Coyoacan cohort study: A cross-sectional analysis.
PMID:36358062
2023this review onlyXerostomia (self-reported dry mouth)not extracted yet
Crews 2020
Self-Reported Oral Health Status Among Adults Aged 40+ Years With and Without Vision Impairment: National Health Interview Study, 2008.
PMID:31604065
2020this review onlyXerostomia (self-reported dry mouth)not extracted yet
da Silva 2017
General health influences episodes of xerostomia: a prospective population-based study.
PMID:28004397
2017this review onlyXerostomia (self-reported dry mouth)not extracted yet
Diep 2021
Xerostomia and hyposalivation among a 65-yr-old population living in Oslo, Norway.
PMID:33501713
2021this review onlyXerostomia (self-reported dry mouth); Salivary gland hypofunction by unstimulated whole saliva (UWS, 0.1 mL/min or less); Salivary gland hypofunction by stimulated whole saliva (SWS, 0.7 mL/min or less)not extracted yet
Drachev 2022
Prevalence of and factors associated with dental service utilization among early elderly in Lithuania.
PMID:34974840
2022this review onlyXerostomia (self-reported dry mouth)not extracted yet
Fornari 2021
Prevalence of xerostomia and its association with systemic diseases and medications in the elderly: a cross-sectional study.
PMID:34190871
2021this review onlyXerostomia (self-reported dry mouth)not extracted yet
Hynne 2022
The relationship between ocular and oral dryness in a cohort from the 65-year-old population in Norway.
PMID:35697848
2022this review onlyXerostomia (self-reported dry mouth); Salivary gland hypofunction by unstimulated whole saliva (UWS, 0.1 mL/min or less); Salivary gland hypofunction by stimulated whole saliva (SWS, 0.7 mL/min or less)not extracted yet
Ianunzio 2019
Direct effect of common mental disorders on xerostomia in adults estimated by marginal structural models: A population-based study.
PMID:30891807
2019this review onlyXerostomia (self-reported dry mouth)not extracted yet
Iwasaki 2018
Hyposalivation and 10-year all-cause mortality in an elderly Japanese population.
PMID:29322550
2018this review onlySalivary gland hypofunction by stimulated whole saliva (SWS, 0.7 mL/min or less)not extracted yet
Iwasaki 2023
Validation of self-reported articulatory oral motor skill against objectively measured repetitive articulatory rate in community-dwelling…
PMID:37673795
2023this review onlyXerostomia (self-reported dry mouth)not extracted yet
Jamieson 2020
Xerostomia: its prevalence and associations in the adult Australian population.
PMID:32583587
2020this review onlyXerostomia (self-reported dry mouth)not extracted yet
Johansson 2012
Self-reported dry mouth in Swedish population samples aged 50, 65 and 75 years.
PMID:22050189
2012this review onlyXerostomia (self-reported dry mouth)not extracted yet
Johansson 2020
Self-reported dry mouth in 50- to 80-year-old Swedes: Longitudinal and cross-sectional population studies.
PMID:31444791
2020this review onlyXerostomia (self-reported dry mouth)not extracted yet
Johansson 2022
Temporal changes and gender differences related to orofacial symptoms in two cohorts of 75-year-old Swedish subjects examined in 2007 and…
PMID:36193569
2022this review onlynot statednot extracted yet
Karawekpanyawong 2022
Oral Health and Nutritional Intake in Community-Dwelling 90-Year-Old Japanese People: A Cross-Sectional Study.
PMID:35233817
2023this review onlySalivary gland hypofunction by stimulated whole saliva (SWS, 0.7 mL/min or less)not extracted yet
Kubo 2024
Longitudinal association between oral function and underweight onset among community-dwelling older adults: Role of regular self-weighing.
PMID:38192111
2024this review onlyXerostomia (self-reported dry mouth)not extracted yet
Lu 2020
Dysphagia and masticatory performance as a mediator of the xerostomia to quality of life relation in the older population.
PMID:33267812
2020this review onlyXerostomia (self-reported dry mouth)not extracted yet
Morishita 2021
Relationship between Mortality and Oral Function of Older People Requiring Long-Term Care in Rural Areas of Japan: A Four-Year Prospective…
PMID:33579046
2021this review onlyXerostomia (self-reported dry mouth)not extracted yet
Ohara 2022
Xerostomia as a key predictor of physical frailty among community-dwelling older adults in Japan: a five-year prospective cohort study…
PMID:34922245
2022this review onlyXerostomia (self-reported dry mouth)not extracted yet
Perez-Gonzalez 2021
Association between xerostomia, oral and general health, and obesity in adults. A cross-sectional pilot study.
PMID:34023839
2021this review onlyXerostomia (self-reported dry mouth)not extracted yet
Quandt 2011
Dry mouth and dietary quality in older adults in north Carolina.
PMID:21391935
2011this review onlyXerostomia (self-reported dry mouth)not extracted yet
So 2010
Dry mouth among the elderly in Korea: a survey of prevalence, severity, and associated factors.
PMID:20868994
2010this review onlyXerostomia (self-reported dry mouth)not extracted yet
Stankeviciene 2021
Association between Diet and Xerostomia: Is Xerostomia a Barrier to a Healthy Eating Pattern?
PMID:34959787
2021this review onlyXerostomia (self-reported dry mouth)not extracted yet
Thomson 1999
The occurrence of xerostomia and salivary gland hypofunction in a population-based sample of older South Australians.
PMID:10483456
1999this review onlyXerostomia (self-reported dry mouth); Salivary gland hypofunction by unstimulated whole saliva (UWS, 0.1 mL/min or less)not extracted yet
Thomson 2021
Xerostomia and polypharmacy among dependent older New Zealanders: a national survey.
PMID:32706865
2021this review onlyXerostomia (self-reported dry mouth)not extracted yet
Wang 2020
Association between symptoms of xerostomia and dry eye in older people.
PMID:31542280
2020this review onlyXerostomia (self-reported dry mouth)not extracted yet

Overlap with other reviews

Reviews that include the same primary studies are not independent evidence. Shared counts match studies by PMID, DOI or NCT, and otherwise by author and year (a probable match). Only the non-Cochrane dental reviews have study lists, so overlap with Cochrane reviews is not counted yet.

Review question

ElementPlanned (methods)Found (results)
PopulationAdults aged 50 years and older in general population-based, representative samplesAdults aged 50 years and older; xerostomia n=1640079 (34 studies); SGH UWS n=1291 (3 studies); SGH SWS n=995 (4 studies)
InterventionNot applicable (prevalence review)Not applicable (prevalence review)
ComparisonNot applicable (prevalence review)Not applicable (prevalence review)
OutcomesPrevalence of xerostomia (self-report) and salivary gland hypofunction (objective salivary flow rate)Xerostomia 21% (95% CI 19-23); SGH by UWS <= 0.1 mL/min 12% (95% CI 4-24); SGH by SWS <= 0.7 mL/min 13% (95% CI 3-28)
Study designsCross-sectional or cohort studies; clinical or convenience samples, case-control, case series, reviews excluded37 studies (cross-sectional and cohort); 36 eligible for meta-analysis
TimingNot specifiedNot specified