Randomization
Participants were randomized 1:1 into either usual care or risk-stratified care via sequentially numbered opaque sealed envelopes. The randomization sequence was determined with an electronic random number generator developed by a statistician not participating in the study. Randomization was performed in permuted blocks of 2 or 4 with random variation of the blocking number. Research coordinators provided the randomization number to the research assistants after signed consent and enrollment of eligible participants. Data were collected in person at baseline and by electronic survey for follow-up visits. Investigators did not see the data until study completion. Clinicians delivering the treatment and participants could not be blinded.