Severe ET Subgroup Analyses
SECONDARY
A subgroup of more severe patients was defined as patients who scored a 3 or 4 on at least one of four BF-ADL tasks associated with eating, drinking, or writing at baseline. These included: (1) write a letter, (2) use a spoon to drink soup, (3) hold a cup of tea, and (4) pour milk from a bottle. The primary and secondary endpoints were analyzed within this subgroup and further stratified by age.