Table 1.

Demographic characteristics

	Total n = 2383	Career n = 2156	Volunteer n = 227	p
Age (mean y ± SD)	42.7 ± 10.0	41.9 ± 9.7	49.9 ± 10.3	<0.001
Gender				0.587
Male	94.6 (2207)	94.6 (1996)	93.8 (211)
Female	5.4 (127)	5.4 (113)	6.2 (14)
Ethnicity				0.403
White	92.6 (2117)	92.4 (1911)	94.5 (206)
Black or African-American	1.6 (36)	1.5 (32)	1.8 (4)
Mexican, Mexican-American or Chicano	2.1 (49)	2.3 (48)	0.5 (1)
American Indian or Alaskan Native	1.6 (36)	1.5 (31)	2.3 (5)
Asian	0.3 (7)	0.3 (7)	0.0 (0)
Native Hawaiian or Pacific Islander	0.3 (7)	0.3 (7)	0.0 (0)
Other	1.5 (34)	1.5 (32)	0.9 (2)
Duration of Time in Fire Service				<0.001
0–3 years	4.1 (97)	4.3 (92)	2.2 (5)
4–6 years	6.7 (157)	7.0 (149)	3.6 (8)
7–15 years	30.5 (714)	32.5 (689)	11.2 (25)
16–20 years	16.7 (392)	17.0 (361)	13.8 (31)
>20 years	42.0 (983)	39.1 (828)	69.2 (155)
Department Size				<0.001
0–50	30.7 (719)	28.2 (598)	54.0 (121)
51–100	23.5 (550)	22.9 (486)	28.6 (64)
101–300	23.7 (555)	24.7 (523)	14.3 (32)
301–500	6.4 (150)	6.9 (147)	1.3 (3)
501–1000	6.1 (143)	6.7 (142)	0.4 (1)
1001–1500	4.0 (94)	4.4 (94)	0.0 (0)
1501–5000	4.3 (101)	4.8 (101)	0.0 (0)
>5000	1.3 (31)	1.3 (28)	1.3 (3)

Note. SD, standard deviation. Data presented as % (n), except where otherwise noted.