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A Multidimensional Prognostic Index (MPI) based on a comprehensive geriatric assessment predicts short- and long-term
Daniele Sancarlo1, Andrea Pilotto, Francesco Panza
1Geriatric Unit and Gerontology-Geriatrics Research Laboratory, Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, Viale Cappuccini 1, 71013 San Giovanni Rotondo, Foggia, Italy.
Abstract:
A multidimensional impairment may influence the clinical outcome of acute diseases in older patients. The aim of the current study was to evaluate whether a Multidimensional Prognostic Index (MPI) based on a comprehensive geriatric assessment (CGA) predicts short- and long-term all-cause mortality in older patients hospitalized for transient ischemic attack (TIA). In this prospective study with 1-year follow-up, 654 patients aged 65 and older with a diagnosis of TIA according to the International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM 435.x) were enrolled. A standardized CGA that included information on functional (activities of daily living, ADL, and Instrumental ADL), cognitive status (Short Portable Mental Status Questionnaire), nutrition (Mini Nutritional Assessment), risk of pressure sores (Exton-Smith Scale), comorbidities (Cumulative Illness Rating Scale), medications and co-habitation status was used to calculate the MPI for mortality using a previously validated algorithm. Higher MPI values were significantly associated with higher 1-month all-cause mortality (incidence rates: MPI-1 low risk = 0.32%, MPI-2 moderate risk = 5.36%, MPI-3 high risk = 10.42%; p < 0.001), 6-month all-cause mortality (MPI-1 = 1.95%, MPI-2 = 9.77%, MPI-3 = 27.22%; p < 0.001) and 12-month all-cause mortality (MPI-1 = 5.19%, MPI-2 = 16.47%, MPI-3 = 44.32%; p < 0.001). Age- and gender-adjusted Cox regression analyses demonstrated that MPI was a significant predictor of all-cause mortality. MPI showed a significant high discriminatory power with an area under the receiver operating characteristics (ROC) curve of 0.819, 95% CI = 0.749-0.888 for 1-month mortality, 0.799, 95% CI = 0.738-0.861 for 6-month mortality and 0.770, 95% CI = 0.716-0.824 for 12-month mortality. The MPI, calculated from information collected in a standardized CGA, appeared to be effective in estimating short- and long-term all-cause mortality in older patients hospitalized for TIA.
Insights
The Multidimensional Prognostic Index (MPI) effectively predicts mortality in older patients hospitalized for transient ischemic attack (TIA). This comprehensive geriatric assessment tool aids in assessing short- and long-term survival outcomes for TIA patients.
Area of Science:
- Geriatric Medicine
- Neurology
- Public Health
Background:
- Older patients hospitalized for acute conditions like transient ischemic attack (TIA) often experience multidimensional impairments affecting clinical outcomes.
- Prognostic tools are crucial for predicting mortality risk in this vulnerable population.
- A comprehensive geriatric assessment (CGA) provides a holistic view of a patient's health status.
Purpose of the Study:
- To evaluate the predictive capability of the Multidimensional Prognostic Index (MPI) for short- and long-term all-cause mortality in older patients hospitalized for TIA.
- To determine if MPI, derived from CGA, is a reliable indicator of survival post-TIA.
Main Methods:
- A prospective study involving 654 patients aged 65+ diagnosed with TIA.
- Standardized comprehensive geriatric assessment (CGA) data including functional, cognitive, nutritional status, comorbidities, and medications were collected.
- The Multidimensional Prognostic Index (MPI) was calculated using a validated algorithm to predict 1-month, 6-month, and 12-month all-cause mortality.
Main Results:
- Higher MPI scores were significantly associated with increased 1-month, 6-month, and 12-month all-cause mortality rates.
- MPI demonstrated a significant predictive value for all-cause mortality in age- and gender-adjusted Cox regression analyses.
- The MPI showed high discriminatory power, with areas under the ROC curve ranging from 0.770 to 0.819 for different mortality time points.
Conclusions:
- The Multidimensional Prognostic Index (MPI) is an effective tool for estimating short- and long-term all-cause mortality in elderly patients hospitalized for TIA.
- MPI, derived from comprehensive geriatric assessment, can aid clinicians in risk stratification and management of TIA patients.
- This prognostic index offers valuable insights into survival outcomes for older adults following a TIA event.
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