A Systematic Review of the Association Between Pain and Instrumental Activities of Daily Living Disability in Community-Dwelling Older Adults.

Introduction: Pain is highly prevalent among community-dwelling older adults and can undermine their ability to perform Instrumental Activities of Daily Living (IADL), which are essential for independent living. This systematic review aimed to summarize existing research to clarify the relationship between pain and IADL disability in community-dwelling older adults.

Methods: We conducted a search of PubMed on 27 July 2025. Eligible studies met the following criteria: (1) assessed the association between pain and IADL disability; (2) included community-dwelling older adults aged 60 and older; and (3) were published in English.

Results: Of the 400 records screened, 29 studies met the inclusion criteria. Of these, 23 studies (18 cross-sectional and 5 cohort studies) reported a significant association between pain and IADL disability, while 6 cross-sectional studies did not. Pain was assessed using diverse instruments across varying recall periods and thresholds, and IADL disability was measured using multiple scales. Such methodological heterogeneity precluded quantitative synthesis.

Conclusions: In community-dwelling older adults, pain consistently predicts IADL disability across designs and settings. However, the lack of standardized, multidimensional measures and incomplete adjustment for treatment, multimorbidity, and polypharmacy limits precise effect estimation. Future research should adopt harmonized assessment tools, control comprehensively for relevant confounders, and perform meta-analyses where data permit to clarify pain's true impact on functional independence.