Table 1 Hospital characteristics

Critical emergency medical center, n (%)

11

(91.7)

Total bed number, mean (SD)

570.2

(408.9)

Intensive care unit bed number, mean (SD)

13.1

(7.1)

Pediatric intensive care unit bed number, mean (SD)

0

(0)

Annual expected number of OHCA cases, mean (SD)

171.4

(72.1)

≥3 physicians treated an OHCA case (daytime duty), n (%)

12

(100)

≥3 physicians treated an OHCA case (nighttime duty), n (%)

8

(66.7)

≥3 nurses treated an OHCA case (daytime duty), n (%)

6

(50.0)

≥3 nurses treated an OHCA case (nighttime duty), n (%)

2

(16.7)

Acute care physicians for OHCA treatments, n (%)

12

(100.0)

Intensive care physicians for OHCA treatments, n (%)

10

(83.3)

 ICU training facility for board-certified intensivists, n (%)

10

(83.3)

Anesthesiologists for OHCA treatments, n (%)

8

(66.7)

Cardiologists for OHCA treatments, n (%)

11

(91.7)

Pediatricians for OHCA treatments, n (%)

8

(66.7)

Use of ETCO₂ monitor during cardiopulmonary arrest, n (%)

8

(66.7)

ECPR use for OHCA, n (%)

9

(75.0)

ECPR protocol, n (%)

9

(75.0)

Clinical engineer who performed ECPR priming, n (%)

10

(83.3)

Body temperature management for OHCA, n (%)

12

(100)

Body temperature management protocol, n (%)

10

(83.3)

 Target (maintenance) temperature (°C), n (%)^a

  33 °C

2

(20.0)

  34 °C

7

(70.0)

  35 °C

1

(10.0)

 Duration of target (maintenance) temperature (hours), mean (SD)^a

24

(0.0)

 Rewarming target temperature (°C), mean (SD)^a

36.1

(0.3)

 Duration of rewarming (hours), mean (SD)^a

33.6

(20.3)