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Table 2 Overall study flow for older drivers (D) and study partners (SP), following SPIRIT template of recommended content for the schedule of enrollment, interventions, and assessments (Chan et al. 2013)

From: The Advancing Understanding of Transportation Options (AUTO) study: design and methods of a multi-center study of decision aid for older drivers

  STUDY PERIOD
Enrollment Allocation Post-allocation Close-out
TIMEPOINT (months) -t t0 t0 t0 t6 mo t12 mo t18 mo t24 mo
ENROLLMENT
 Eligibility screen XD,SP        
 Informed consent   XD,SP       
 Randomization    XD,SP      
INTERVENTIONS
 Driving decision aid    XD,SP      
 Control website    XD,SP      
ASSESSMENTS
Immediate outcomes
 Decision Conflict Scale   XD,SP   XD,SP XD XD,SP XD XD,SP
 Knowledge questionnaire   XD   XD,SP XD XD,SP XD XD,SP
 Values concordance (DCS Values Clarity subscale)   XD,SP   XD,SP XD XD,SP XD XD,SP
 Decision Self-Efficacy scale   XD   XD,SP XD XD,SP XD XD,SP
Longitudinal outcomes
 PROMIS Depression   XD    XD XD XD XD
 Ottawa Decision Regret Scale      XD XD,SP XD XD,SP
 Life-Space Assessment   XD    XD XD XD XD
 Driving behaviors   XD    XD XD,SP* XD XD,SP*
Subgroups
 Cognitive screening (5-min MoCA) XD,SP     XD XD,SP XD XD,SP
 Cognitive function (BTACT, OTMT)   XD       
 Beck Cognitive Insight Scale   XD       XD
 Decisional capacity (SPACED)   XD       XD
 Attitudes about driving (ARMT)   XD    XD XD XD XD
 Driving behaviors   XD,SP    XD XD,SP* XD XD,SP*
Other covariates
 Demographics   XD,SP    XD XD,SP XD XD,SP
 Physical health   XD    XD XD XD XD
 Mental health   XD    XD XD XD XD
 Personality (TIPI)   XD       
 Driving education   XD,SP    XD XD,SP XD XD,SP
 Family questionnaire   XSP     XSP   XSP
 Major life events      XD XD,SP* XD XD,SP*
 COVID-19 related health     XD,SP XD XD,SP XD XD,SP
  1. *Questions about older driver, as answered by study partner