Characteristics of critical incidents

Age

Distribution for all anesthetics (%)

Number of incidents (%)

total = 441

Infants < 1 yo

0.1

1 (0.2)

Pediatrics

2.8

19 (4.4)

Adults (18 - 65 yo)

71.2

288 (67.3)

Geriatrics > 65 yo

25.9

120 (28.0)

Gender

Distribution for all anesthetics (%)

Number of incidents (%)

Odds ratio compared to female (95% CI)

Male

49.6

231 (52.4)

1.18 (0.98 to 1.43)

Female

50.4

198 (44.9)

ASAa

Distribution for all anesthetics (%)

Number of incidents (%)

Odds ratio compared to ASA 1 (95% CI)

1

40.2

79 (18.5)

-

2

34.6

141 (32.9)

2.08 (1.58 to 2.74)

3

15.4

171 (40.0)

5.68 (4.35 to 7.43)

4

2.0

31 (7.2)

7.93 (5.22 to 12.05)

5

0.2

6 (1.4)

13.70 (5.91 to 31.74)

Status

Distribution for all anesthetics (%)

Number of incidents (%)

Odds ratio compared to emergency (95% CI)

Elective

74.1

331 (75.2)

1.05 (0.85 to 1.31)

Emergency

25.9

110 (24.8)

-

Time of incident

Distribution of start time for all anesthetics (%)

Number of incidents (%)

Odds ratio compared to daytime (95% CI)

Daytime (08:00-17:00)

83.7

327 (74.1)

-

Out of hours

16.3

114 (25.9)

1.79 (1.45 to 2.23)

Anesthesia techniqueb

Distribution for all anesthetics (%)

Number of incidents (%)

Odds ratio compared to GA (95% CI)

GA

83.9

358 (80.1)

-

RA

14.6

55 (12.3)

088 (0.66 to 1.17)

GA & RA

0.5

18 (4.0)

9.38 (5.79 to 15.21)

MAC (including line placement)

0.9

12 (2.7)

3.05 (1.71 to 5.45)