Table 3.

Associations of Passenger Condition and Passenger Presence With Failed to Stop and Percent Time in Red

	Variable	B #	SE	DF	t	p
Logit of failed to stop†	Passenger condition (PC)
	Risk-averse passenger	0.54	0.34	55	1.62	0.11
	Risk-accepting passenger	Ref
	Passenger presence (PP)
	Passenger drive	0.08	0.16	55	0.48	0.64
	Solo drive	Ref
	PC * PP	0.61	0.22	55	2.78	<.01
Percent time in red‡	Passenger condition (PC)
	Risk-averse passenger	5.84	4.14	54	1.41	0.16
	Risk-accepting passenger	Ref
	Passenger presence (PP)
	Passenger drive	1.16	2.10	56	0.55	0.58
	Solo drive	Ref
	PC * PP	7.71	3.08	56	2.50	0.02

Note.

The corresponding odds ratios (OR) and 95% Confident Intervals (CI) are as follows: PC (OR = 1.72; 95% CI [0.88, 3.37]), PP (OR = 1.08; 95% CI [0.78, 1.48]), and PC * PP (OR = 1.84; 95% CI [1.19, 2.86]).

^†Generalized linear mixed model was used with binomial distribution assumption and logit link.

^‡Mixed model was used with REPEATED statement, normality distribution assumption, and Compound Symmetry variance-covariance structure.

Both models are controlling for drive presentation order and for baseline difference in friends' risk behavior.

^#To report the results in a consistent format we reported logit of Failed to Stop in the table.