Statistical Analysis
SECONDARY
Analyses were conducted according to the intention-to-treat principle and performed using SAS software, version 9.4 (SAS Institute Inc) (Similar repeated-measures mixed-model analyses were implemented for each secondary outcome. Comparison of all secondary outcomes between groups was evaluated at a significance level of 2-sided Along with stratification factors, the heterogeneity of treatment effects on the primary outcome was assessed for subgroups based on prespecified factors assessed at baseline (eg, age, sex, biculturalism score, and primary reason for ED visit). The biculturalism score (which includes Hispanicism and Americanism scores) was measured by the Bicultural Involvement Questionnaire–Short Version