Optimizing sobriety checkpoints to maximize public health benefits and minimize operational costs

Table 3 Participant characteristics (n = 112)

Variable	n	%
Dependent measures
Momentary perceived stress (above the sample mean)	37	33.0
Support for sobriety checkpoints
Any	101	90.2
Once every few months	101	90.2
Several times every month	76	67.9
Independent measures
Prior stress	23	20.5
Drove after drinking in last 90 days	21	18.8
Drunk driving in last 90 days	0	0.0
Alcohol consumption
None	29	25.9
Monthly	29	25.9
Weekly	24	21.4
Daily	30	26.8
Male	60	53.6
Age (quartiles)
21–28 years	29	25.9
29–39 years	29	25.9
40–49 years	24	21.4
50–75 years	30	26.8
Race/ethnicity
Non-Hispanic White	65	58.0
Non-Hispanic Black	18	16.1
Hispanic	10	8.9
Other	19	17.0
Income
< $40 k	17	15.2
$40–80 k	37	33.0
$80–120 k	19	17.0
> $120 k	33	29.5
Chose not to answer	6	5.4

ISSN: 2197-1714