Observational studyPloS one2021
Dementia and patient outcomes after hip surgery in older patients: A retrospective observational study using nationwide administrative data in Japan.
Observational study in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The trial behind it
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Who cites it
8 citing papers in PubMed, 10 citations in OpenAlex.
- Factors associated with selection of total hip arthroplasty versus hemiarthroplasty for femoral neck fracture in older adults: a nationwide analysis of 99,084 cases.Archives of orthopaedic and trauma surgery · 2026Article
- Impact of Dementia on Perioperative Complications in Elderly Patients Undergoing Total Knee Arthroplasty: A Retrospective National Inpatient Sample Database Study.Geriatric orthopaedic surgery & rehabilitation · 2026Article
- Effects of Dementia on Adverse Outcomes in Geriatric Patients Undergoing Elective Total Hip Arthroplasty: Analysis of the US Nationwide Inpatient Sample.Geriatric orthopaedic surgery & rehabilitation · 2026Article
- Scoping review exploring the impact of hip fracture in older adults with cognitive impairment or dementia.BMJ open · 2025Article
- Comparison of surgical efficacy between direct anterior approach and posterolateral approach in the treatment of sarcopenia with femoral neck fractures.BMC geriatrics · 2024Article
- Complication rates after direct anteriorWorld journal of orthopedics · 2024Article
- Effect of COVID-19 inpatients with cognitive decline on discharge after the quarantine period: A retrospective cohort study.Journal of general and family medicine · 2022Article
- Evidence of the Association between Nurse Staffing Levels and Patient and Nurses' Outcomes in Acute Care Hospitals across Japan: A Scoping Review.Healthcare (Basel, Switzerland) · 2022Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo investigate whether dementia is associated with incidence of adverse events and longer hospital stays in older adults who underwent hip surgery, after adjusting for individual social and nursing care environment. DESIGN AND
settingRetrospective observational study using the linked data between the Japanese Diagnosis Procedure Combination database and the reports of the medical functions of hospital beds database in Japan (April 2016-March 2017).
participantsA total of 48,797 individuals aged 65 and older who underwent hip surgery and were discharged during the study period.
methodsOutcomes included in-hospital death, in-hospital pneumonia, in-hospital fracture, and longer hospital stay. We performed two-level, multilevel models adjusting for individual and hospital characteristics.
resultsAmong all participants, 20,638 individuals (42.3%) had dementia. The incidence of adverse events for those with and without dementia included in-hospital death: 2.11% and 1.11%, in-hospital pneumonia: 0.15% and 0.07%, and in-hospital fracture: 3.76% and 3.05%, respectively. The median (inter quartile range) length of hospital stay for those with and without dementia were 26 (19-39) and 25 (19-37) days, respectively. Overall, the odds ratios (95% confidence interval (CI)) of dementia for in-hospital death, in-hospital pneumonia, and in-hospital fracture were 1.12 (0.95-1.33), 0.95 (0.51-1.80), and 1.08 (0.92-1.25), respectively. Dementia was not associated with the length of hospital stay (% change) (-0.7%, 95% CI -1.6-0.3%). Admission from home, discharge to home, and lower nurse staffing were associated with prolonged hospital stays.
conclusionsAlthough adverse events are more likely to occur in older adults with dementia than in those without dementia after hip surgery, we found no evidence of an association between dementia and adverse events or the length of hospital stay after adjusting for individual social and nursing care environment.
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