Table 1B.

List of variables to be defined at the prescriber-level

Variable	Definition	Variable assessment period
Unique prescriber ID (CCW_PRSCRBR_ID)	Unique prescriber IDs associated with index medication prescriptions in the eligible patient cohort	Index prescription fill date
Total number of patients initiated on an antidepressant by this prescriber	Total number of times this unique prescriber ID shows up in the cohort as the initiating prescriber for any antidepressants during study period*	Start to end of claims data
Percent racial/ethnic minority patients seen by provider during entire study period	(Total number of Black, Hispanic, Asian or other racial/ethnic minority patients with any medical claim with this provider during entire study period)/ (Total number of patients with any medical claim with this provider during entire study period*)	Start to end of claims data
Total number of SSRI users initiated by this prescriber	Total number of times this unique prescriber ID shows up in the cohort as the initiating prescriber for SSRI users during study period*	Start to end of claims data
Prescriber preference for SSRIs	(Total number of SSRI users)/(Total number of all antidepressant users)	Start to end of claims data
Percent racial/ethnic minority patients prescribed SSRIs by prescriber during entire study period	(Total number of Black, Hispanic, Asian or other racial/ethnic minority patients initiated on SSRI by the prescriber during entire study period)/(Total number of patients initiated on an antidepressant by this prescriber during entire study period*)	Start to end of claims data
Total number of patients ordered to receive psychotherapy service by this prescriber	Total number of patients ordered to receive psychotherapy service by this prescriber during study period*	Start to end of claims data

*Study period: start to end of claims data.

SSRI, selective serotonin reuptake inhibitors.