Table 1.

Respondent characteristics

Characteristic	Total	Paramedic	Fire-fighter-EMTs	EMTs	P value*
Total respondents, N	786	102	408	276
Median age, yrs [IQR]	42 [33-49]	47 [40-52]	45 [39-51]	31 [26-41]	<0.01
Male gender, N (%)	647 (82)	86 (84)	364 (89)	197 (71)	<0.01
Median years experience at EMS position, [IQR]	13 [5-20]	14 [9-21]	16 [10-22]	5 [2-14]	<0.01

^*Comparisons across groups using Kruskal-Wallis rank test and χ2 test, as appropriate