Table 5.

Word or phrase importance ranking

Social factor (classifier)	Top 20 weighted words
Housing stability (support vector machine, n=1)	['friends' 'motel' ’stay' 'cigs' 'found' ’street' ’stays' ’streets' 'van' 'incarcerated' 'desc' 'currently' 'undomiciled' 'friend' 'respite' 'kcj' ’shelters' 'homelessness' ’shelter' 'homeless']
No tobacco use (logistic regression, n=1,2)	['use denies' 'deneis' 'lives' 'tobacco drug' ’seattle denies' 'use results' 'lives seattle' 'alcohol tobacco' 'tobacco drugs' 'never smoker' 'etoh tobacco' 'drinking' ’seattle tobacco' 'denies cigarettes' 'drugs tobacco' 'denies alcohol' 'tobacco alcohol' 'denies smoking' 'denies' 'denies tobacco']
No alcohol use (logistic regression, n=1,2)	['care' 'ppd' 'tobacco' ’smoking' 'etoh tobacco' 'history cocaine' 'tobacco alcohol' 'etoh illicit' 'alcohol tobacco' 'etoh drug' 'drugs etoh' 'alcohol drug' 'use none' 'alcohol drugs' 'drug etoh' 'denies alcohol' 'lives' 'denies drug' 'denies etoh' 'denies']