A recent Geriatric Medicine digest,
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Study Type: Matched cohort study

Key Question: Does hospital-recorded delirium increase the risk and accelerate the timing of nursing home admission in older adults with and without dementia?

Key Findings:

• Delirium increased nursing home admission risk by 23% in those without dementia (SHR 1.23, 95% CI 1.14-1.34) and 22% in those with dementia (SHR 1.22, 95% CI 1.07-1.38)
• Delirium accelerated nursing home admission by approximately 1.6 years in non-dementia patients and 1.3 years in dementia patients
• The association between delirium and nursing home placement was independent of pre-existing dementia status

Clinical Relevance: This evidence strengthens the case for systematic delirium prevention programmes in UK hospitals, as preventing delirium could delay or prevent nursing home admissions with significant implications for NHS social care costs and patient autonomy.

Limitations: The study relied on ICD-10 coding which likely underestimates true delirium incidence in hospital settings.

Study Type: Retrospective cohort study

Key Question: What are the clinical outcomes associated with antiarrhythmic drug use in patients aged ≥80 years with atrial fibrillation?

Key Findings:

• Among 4,244 patients (mean age 84.8 years), 15.8% received antiarrhythmic drugs (10.9% amiodarone, 4.9% class 1c agents)
• Class 1c drugs were prescribed to younger, less frail patients; amiodarone to those with coronary disease and frailty markers
• After adjustment for confounders, neither drug class was associated with reduced all-cause mortality or cardiovascular events over median 502-day follow-up

Clinical Relevance: These findings suggest rhythm control strategies in octogenarians with AF should be highly selective, as antiarrhythmic drugs show no mortality benefit in this population within UK geriatric practice.

Limitations: Observational design cannot establish causality, and treatment allocation was influenced by baseline patient characteristics creating potential residual confounding.

Study Type: Cross-sectional analysis of national research participation data

Key Question: How well represented are older adults in contemporary UK clinical research across different specialties and study types?

Key Findings:

• Adults aged 65-74 years comprised the largest research participant group (15.5%), while those over 85 years represented only 3.2% of all recruits, with this proportion declining over time
• Nine of 14 medical specialties recruited fewer than 5% of participants aged over 85 years
• Older adults were significantly underrepresented in commercial studies compared to non-commercial research, and recruitment patterns did not match population epidemiology for heart failure, Parkinson's disease, and palliative care

Clinical Relevance: This analysis reveals substantial age-related inequities in UK research participation that may limit the generalisability of trial evidence to the older patients who comprise the majority of NHS acute medical admissions.

Limitations: The study does not explore reasons for underrepresentation or assess whether age-related exclusions were clinically appropriate.

Study Type: Population-based observational study

Key Question: How do behavioural pain indicators manifest across different pain assessment domains in people with advanced dementia?

Key Findings:

• Analysis of 2.1 million pain assessments in 89,230 aged care residents showed 52.8% exhibited pain indicators
• Pain indicators were 2.5 times more likely during movement versus rest (OR=2.5, 95% CI 2.4-2.7)
• Strongest predictors of higher pain levels were distress (OR=27.9), rapid breathing (OR=20.1), and restlessness (OR=18.7)

Clinical Relevance: This large-scale evidence validates multidimensional pain assessment tools used in UK care homes and confirms that movement-based assessments are crucial for detecting pain in residents with advanced dementia.

Limitations: Observational design cannot establish causality between indicators and actual pain experience in this population unable to self-report.

Study Type: Health registry study

Key Question: What are the prevalence patterns and clinical profiles of multimorbidity in Belgian voluntary assisted dying (VAD) cases over 22 years?

Key Findings:

• Among 6,153 VAD cases (2003-2024), patients averaged 83.1 years with 2.79 comorbid conditions and severe illness burden (mean CIRS-G 3.43/4.0)
• Five distinct sex-specific clusters emerged: females predominantly musculoskeletal-psychiatric-cardiovascular; males cardio-respiratory-neurological
• VAD incidence increased over time, particularly in oldest patients, with rapid growth in female musculoskeletal-psychiatric profiles

Clinical Relevance: This provides UK geriatricians with insights into end-of-life multimorbidity patterns that may inform palliative care discussions, though VAD remains illegal in the UK.

Limitations: Belgian healthcare system and legal framework differ substantially from the UK, limiting direct applicability to NHS practice.

Study Type: Retrospective cohort study

Key Question: How does dementia affect postoperative outcomes in older adults and through which pathways does it confer surgical risk?

Key Findings:

• Among 547,310 adults ≥75 years, those with dementia (7.9%) had 64% higher 30-day mortality (aRR 1.64, 95% CI 1.50-1.80) and 3-fold higher delirium risk (aRR 3.09)
• Postoperative delirium mediated 46% of dementia-associated mortality risk, while loss of independence mediated 26% of mortality and 70% of new institutionalisation
• Dementia was not associated with surgical complications per se (aRR 1.02)

Clinical Relevance: This large US study clarifies that dementia patients' poor surgical outcomes result from specific pathways (delirium→mortality; functional decline→prolonged stay/institutionalisation), informing targeted perioperative interventions in UK geriatric surgical services.

Limitations: US healthcare system data may not fully translate to NHS settings with different discharge and social care pathways.

Study Type: Systematic review and network meta-analysis of randomised controlled trials

Key Question: Which exercise interventions are most effective at reducing fear of falling in older adults?

Key Findings:

• Mind-body exercise (e.g., tai chi, yoga) consistently reduced fear of falling across cognitive (SMD -1.09, 95% CI -1.88 to -0.31) and emotional domains (SMD -0.63, 95% CI -1.13 to -0.13)
• Multicomponent exercise and exergaming showed modest benefits for emotional fear constructs, but exergaming was only effective for interventions under 3 months
• Balance training and resistance training showed limited effectiveness across both fear domains
• Benefits were not sustained after intervention cessation

Clinical Relevance: This evidence can guide UK geriatricians in selecting exercise interventions for older adults with fear of falling, particularly relevant for falls prevention services and community exercise referral schemes.

Limitations: The lack of sustained benefit after intervention cessation suggests ongoing support may be needed for long-term fear reduction.

Study Type: Randomised controlled trial

Key Question: Does peer-led digital skills training reduce social isolation and improve digital health literacy in nursing home residents?

Key Findings:

• 120 residents randomised to 6-week peer-led digital training vs control showed sustained improvements in social isolation, digital health literacy, perceived social support and technology anxiety at 3-month follow-up (all P < 0.05)
• Short-term benefits included enhanced social networks and subjective well-being, though these effects diminished during follow-up
• No increase in internet addiction risk observed

Clinical Relevance: Demonstrates a feasible intervention for addressing digital exclusion and social isolation in care home residents, relevant to UK nursing homes seeking evidence-based approaches to improve residents' connectivity and wellbeing.

Limitations: Single-centre study conducted in China may limit generalisability to UK care home settings and populations.