Table 1.

Modifications to original Usual Care and Family Navigation

Modification Area	First Pilot	Second Pilot
Recruitment Processes
Referral source	Developmental and Behavioral Pediatrics Specialty Care Clinic	Primary Care clinics
Eligibility	Age 15 months-6 years with concern for ASD based on positive M-CHAT-R/F or clinical judgment family must meet social risk criteria	Age 15–36 months with concern for ASD based on positive M-CHAT-R/F or clinical judgment; no social risk criteria
Usual Care
Diagnostic evaluation scheduling procedures	Three diagnostic evaluation visits scheduled separately	All three diagnostic assessment visits scheduled simultaneously. Added evening appointment confirmation calls to parents
Patient-centered coordination in medical home	No communication of activities or results after referral to study	Communicated level of risk from study M-CHAT-R/F screen and information regarding status of DBP referral back to primary care physician
FN Intervention
Dosage	Target number of navigator visits: 3	Target number of navigator visits: 4
Follow-Up Period	Final navigator meeting: at time of diagnosis	Final navigator meeting: 100 days after diagnosis
Navigator Training	Topics: navigation, ASD, and health care systems	Added motivational interviewing and collaborative decision-making training