Table 2.

Descriptive statistics for Houston and Los Angeles Taxi Cab Drivers for Years.

Individual factors	Mean ± SD or %
# of crashes for the past 12 months (n = 971)
At least 1 crash (n = 148)	15%
Age (n = 971)	43.9 ± 10.1
Sex (n = 961)
Male (n = 897)	92%
Race and Ethnicity (n = 835)
Black or African American, non-Hispanic (n = 290)	35%
White, non-Hispanic (n = 266)	32%
Hispanic (n = 101)	12%
Asian, non-Hispanic (n = 100)	12%
American Indian/Alaska Native/Native Hawaiian/Pacific Islander, non-Hispanic (n = 30)	4%
Refused to answer question (n = 29)	4%
Nativity (n = 973)
Born outside the U.S. (n = 514)	53%
Educational attainment (n = 970)
Below High School (n = 128)	13%
High School (n = 333)	34%
Some College (n = 491)	50%
Graduate degree (n = 18)	2%
Relationship status (n = 971)
Married or Long-term relationship (n = 559)	57%
Single (n = 273)	28%
Separated, Divorced, or Widowed (n = 129)	13%
Refused to answer question (n = 10)	1%