Table 2.

Population characteristics of groups of respondents.

Characteristic	All groups	BCS	RES	GPE	GPG	P-value
Number of respondents	770 [100, NA]	216 [28, 25–31]	69 [9, 7–11]	299 [39, 35–42]	186 [24, 21–27]	<0.0001
Age [years, mean ± SEM]	37.7 ± 0.3	41.1 ± 0.6	31.9 ± 1.0	37.4 ± 0.5	36.6 ± 0.6	<0.0001
Female respondents	554 [72, 69–75]	160 [74, 68–80]	54 [78, 67–86]	219 [74, 68–78]	121 [65, 58–72]	0.09
Number of veterinarians in the practice [median, first (Q1) and third quartile (Q3)]	12, Q1 = 5 Q3 = 28	25, Q1 = 15 Q3 = 50	46, Q1 = 20 Q3 = 60	10, Q1 = 6 Q3 = 20	3, Q1 = 2 Q3 = 5	<0.0001
Respondents with caseload consisting of more than 50% emergencies	408 [53, 49–56]	137 [63, 57–70]	45 [65, 53–75]	214 [72, 66–76]	12 [7, 4–11]	<0.0001
Respondents that are personally performing CPR 6 or more times/year	476 [62, 58–65]	170 [79, 73–84]	54 [78, 67–86]	213 [71, 66–76]	39 [21, 16–27]	<0.0001
Respondents with size of resuscitation team of 4 or more.	458 [60, 56–63]	193 [89, 85–93]	63 [91, 82–96]	167 [56, 50–61]	35 [19, 14–25]	<0.0001

BCS, board-certified specialists in emergency and critical care and/or anesthesia; RES, residents in emergency and critical care and/or anesthesia; GPE, general practitioners in emergency practice; GPG, general practitioners in non-emergency environment; NA, non-applicable. Characteristics are expressed as number of respondents [percentage of group total, 95% confidence interval] unless stated otherwise. P-value refers to comparisons among all groups.