Frailty instrument | Classification | Neurofrailty instrument description | Studies utilizing the index |
---|---|---|---|
11 Factor Modified Frailty Index (mFI-11) | Accumulating deficit model | This scale accounts for 11 variables, and 1 point is given for each variable present: Non-independent functional status History of diabetes mellitus History of chronic obstructive pulmonary disease History of congestive heart failure History of myocardial infarction History of percutaneous coronary intervention, cardiac surgery, or angina Hypertension requiring the use of medication Peripheral vascular disease or rest pain Impaired sensorium Transient ischemic attack or cerebrovascular accident without residual deficit Cerebrovascular accident with deficit | Cloney et al. [35] Imaoka et al. [36] Youngerman, et al. [17] |
5 Variable Modified Frailty index (mFI-5) | Accumulating deficit model | The mFI-5 is calculated using the following variables: -non-independent functional status, -Diabetes mellitus, -Chronic obstructive pulmonary disease or current pneumonia, -Congestive heart failure, and -Hypertension requiring medication. Non-independent functional status is defined by the NSQIP database as requiring assistance for any activities of daily living, including feeding, dressing, bathing, and mobility. Each factor contributes one point for an mFI-5 score between 0 and 5, with increasing scores implying increasing frailty. | Henry et al. [38] Huq et al. [15] Therioult et al. [40] Sastry et al. [39] |
John Hopkins Frailty Instrument | Phenotype deficit model | This phenotype model of frailty includes the 5 components of the HFS: shrinking, weakness, exhaustion, low activity, and slowed walking speed | Harland et al. [37] |
Johns Hopkins Adjusted Clinical Groups (JHACG) frailty-defining diagnosis indicator | Phenotype deficit model | Johns Hopkins Adjusted Clinical Groups frailty-defining diagnosis indicator. The JHACG frailty-defining diagnosis indicator uses a set of 10 clinical clusters: malnutrition, dementia, vision impairment, decubitus ulcer, urine control, weight loss, fecal control, social support, difficulty walking, and history of a fall. | Shahrestani et al. [16] |