To systematically review the psychometric properties of the Geriatric Oral Health
Assessment Index (GOHAI) across age groups using the COnsensus-based Standards for
the selection of health Measurement Instruments (COSMIN) methodology.Data: English
peer-reviewed articles reporting studies of the development, translation, or validation
of GOHAI.PubMed, Web of Science and EMBASE from Jan 1990 until 31. December 2023.
Methodological evaluation: based on COSMIN-methodology. The results are presented
overall and for four age-groups (≥60 years, all ages, <60 years, ≤45 years). Structural
validity was summarized qualitatively. Internal consistency and reliability were synthesized
via random-effects meta-analysis of T-transformed Cronbach α values, and Fisher's
Z transformed correlation coefficients. Construct validity and responsiveness were
assessed using effect sizes.497 records were identified, 72 underwent full-text assessment,
resulting in 60 included reports. Structural validity was inconsistent across all
age groups and overall. Internal consistency was sufficient with overall α=0.81, and
high evidence quality. Test-retest reliability was consistently sufficient across
age groups with overall r=0.84. For construct validity 361 hypotheses were assessed
(37.4% for convergent-, 62.6% for known-groups validity). The percentage of confirmed
hypotheses in ≥ 60-years, all ages, <60-years and ≤ 45-years were 75.5%, 66.7%, 78.9%,
and 88.9%, respectively. Responsiveness was not assessed in the <60-years and ≤45-years
age groups, leading to indeterminate overall rating with very low evidence quality.This
review affirms that GOHAI has sufficient psychometric properties as an OHRQoL instrument
in various age groups, but its responsiveness is scarcely researched and its utility
for individual-level follow-up is limited. The measurement properties of OHRQoL tools
must be scrutinized in the changing demands of personalized and value-based dental
care. (PROSPERO registration:CRD42022384132).
