Three categories of analyses were used to compare difficulty with and dependence in 6 individual ADLs between the HVN ( n = 237 ) and care as usual ( n = 262 ) groups ( total N = 499 ) at 22 months after study entry : ( 1 ) unadjusted analyses that strictly depend on random assignment , ( 2 ) multinomial logistic regression analyses adjusting for baseline risk factors , and ( 3 ) multinomial regression analyses that include variables reporting post-randomization healthcare use as well as the baseline risk factors .