. Author manuscript; available in PMC: 2022 Jun 1.

Published in final edited form as: Contemp Clin Trials. 2021 Apr 18;105:106401. doi: 10.1016/j.cct.2021.106401

Table 1.

Increased costs associated with baseline outcome assessments per randomized participant.

Assessment	Participants Assessed	Participants Randomized	Randomization Ratio	Increased Cost Factor
Phone screening	2938	494	0.168	5.95
Cognitive^*	673	494	0.734	1.36
Questionnaires	646	494	0.765	1.31
VO_{2 max}	563	494	0.877	1.14
DHQ	404	494	1.223	NA
PA monitoring	517	494	0.956	1.05
DXA/PWV/PF	545	494	0.906	1.10
Blood/Hair	542	494	0.911	1.10
MRI scan	530	494	0.932	1.07
PET scan^**	349	362	1.037	NA

Both visits

^**

PET scan from Pitt and KU sites only

VO_2max: Maximal Cardiorespiratory Fitness Test; DHQ: Diet History Questionnaire; PA: Physical Activity; DXA: Dual-energy X-ray Absorptiometry; PWV: Pulse Wave Velocity; PF: Physical Function; MRI: Magnetic Resonance Imaging; PET: Positron Emission Tomography.