“…Given the large number of observations and the inclusion of a numerous covariates, we estimated a linear probability model even though the outcome was dichotomous. Based on prior research, age, gender, race, Elixhauser and Deyo-modified Charlson co-morbidity scores 2,3,5,6 , hospital length-of-stay and ICU use 3,6 , RN, LPN and CNA FTEs 10-13 , the proportion of Medicaid paid residents 14-17 , the weighted deficiency score based on state’s inspection of the SNF 13,18,19 , occupancy rate, chain membership, corporate ownership, and the presence of any physician extenders were included as co-variates in the multivariable regression model.…”