Development of a machine learning model to predict mild cognitive impairment using natural language processing in the absence of screening

Table 5 Variables retained in the prediction model

Variable (intercept)	Description	Coefficient
ICD_EXCL	Dementia ICD9 codes in text but not structured data	0.634
DEMENTIA	Severe dementia	0.596
DONEPEZIL	Discussion of Aricept, donepezil (but not prescribed or used)	0.568
OTHER_SA	Communication goes through family members	0.17
RACE	Black race	0.134
DECLINE	Declining memory/cognitive abilities	0.082
BEHAVIOR SUM	Sum of presence of behavioral concepts	0.076
AGE	Age at index (per year) e.g. For age 70 the coefficient = 1.61	0.023
CALLED	Reference to family member calling about patient’s memory	0.012

ISSN: 1472-6947