. 2015 Oct;105(10):2131–2136. doi: 10.2105/AJPH.2015.302738

TABLE 2—

Incident Description and Bicyclist Behaviors Among Injured Commercial Bicyclists: New York City, 2008–2014

	Commercial Bicyclists (n = 284)		Noncommercial Bicyclists (n = 535)
Category	No. (%)	95% CI	No. (%)	95% CI
Incident description
Against flow of traffic^a	27 (9.9)	6.6, 14.1	36 (7.5)	5.3, 10.2
Riding in bike lane/path^b	75 (29.8)	24.2, 35.8	143 (29.7)	25.6, 34.0
Crossed intersection against signal^c	28 (10.6)	7.4, 14.9	57 (11.8)	9.0, 15.0
Cut off by motor vehicle^d^,^e	28 (24.6)	17.0, 33.5	74 (25.3)	20.5, 30.7
Collided with open car door^f	59 (21.9)	17.1, 27.3	68 (13.1)	10.3, 16.3
Riding on the side walk^d^,^g	2 (1.7)	0.2, 5.9	5 (1.6)	0.5, 3.6
Electronic device use^h	14 (5.0)	2.7, 8.2	66 (12.7)	9.9, 15.9
Alcohol involvement	2 (0.7)	0.1, 2.5	51 (9.5)	7.2, 12.3
BAC level drawn	86 (30.5)	25.2, 36.2	211 (39.4)	35.3, 43.7
Bicyclist gear use
Helmetedⁱ	108 (38.4)	32.7, 44.4	163 (30.8)	26.9, 34.9
Reflective vest^d^,^j	7 (5.8)	2.4, 11.7	3 (0.9)	0.2, 2.7
Working cyclist required gear^k
Carrying ID card provided by business^l	20 (40.8)	NA	NA	NA
Wearing vest with business name^m	25 (51.0)	NA	NA	NA
Type of bicycle^d^,ⁿ
Normal bicycle	97 (80.8)	72.6, 87.4	306 (93.9)	90.7, 96.2
Electric bicycle	17 (14.2)	8.5, 21.7	4 (1.2)	0.3, 3.1
Fixed gear bicycle	3 (2.5)	0.5, 7.1	11 (3.4)	1.7, 6.0
Pedicab	1 (0.8)	0.02, 4.6	1 (0.3)	0.01, 1.7
Other	2 (1.7)	0.2, 5.9	4 (1.2)	0.3, 3.1
Motor vehicle type^o
Passenger vehicle^p	95 (36.7)	30.8, 42.9	212 (46.1)	41.5, 50.8
Yellow taxicab	121 (46.3)	40.5, 53.0	165 (35.9)	31.5.40.4
Commercial vehicle^q	43 (16.6)	12.3, 21.7	83 (18.0)	14.6, 21.9

Note. BAC = blood alcohol content; CI = confidence interval; ID = identification; NA = not applicable; SUV = sport utility vehicle. CI calculated using exact binomial method.

^{^a}

Twelve commercial bicyclists and 53 noncommercial bicyclists excluded.

^{^b}

Thirty-two commercial bicyclists and 53 noncommercial bicyclists excluded for nonapplicable or unknown status.

^{^c}

Nineteen commercial bicyclists and 50 noncommercial bicyclists excluded.

^{^d}

Includes data collected between 2012 and 2014; data from 2009 to 2011 did not collect this variable.

^{^e}

Commercial bicyclist n = 114, noncommercial bicyclist n = 292.

^{^f}

Fourteen commercial bicyclists and 17 noncommercial bicyclists excluded.

^{^g}

Commercial bicyclist n = 119, noncommercial bicyclist n = 323.

^{^h}

Two commercial bicyclists and 15 noncommercial bicyclists excluded.

^ⁱ

Three commercial bicyclists and 6 noncommercial bicyclists excluded.

^{^j}

Commercial bicyclist n = 120, noncommercial bicyclist n = 326.

^{^k}

Only includes commercial bicyclists injured after May 1, 2013.

^{^l}

Commercial bicyclist n = 49.

^{^m}

Commercial bicyclist n = 48.

^ⁿ

Commercial bicyclist n = 120, noncommercial bicyclist n = 326.

^{^o}

Commercial bicyclist n = 259, noncommercial bicyclist n = 460.

^{^p}

Includes limousines, SUV, and vans.

^{^q}

Includes trucks, buses, and access-a-ride vehicles.