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Table 3 Correspondence between the clinical stage and the measured temperature for the 305 cases

From: An evaluation of the Swiss staging model for hypothermia using hospital cases and case reports from the literature

 

≥ 32 T° < 35

≥ 28 T° < 32

≥ 24 T° < 28

T° < 24

overall, N (%)

mean T ± SDa

range

95% CI for mean

90% prediction intervalb

Stage 1, n (%)

 Hospital

66

13

0

0

79 (64.8)

33.4 ± 1.3

28.5–34.9

33.1–33.7

30.8–34.6

 Literature

4

6

0

0

10 (5.5)

31.3 ± 2.2

28.1–34.2

29.7–32.9

28.3–34.1

 Overall

70

19

0

0

89 (29.2)

33.2 ± 1.6

28.1–34.9

32.8–33.5

30.0–34.6

Stage 2, n (%)

 Hospital

4

15

3

1

23 (18.9)

30.6 ± 2.5

26.0–34.8

29.5–31.6

26.1–34.0

 Literature

3

11

8

2

24 (13.1)

28.3 ± 3.2

22.0–34

27.0–29.6

23.3–33.9

 Overall

7

26

11

3

47 (15.4)

29.4 ± 3.0

22.0–34.8

28.5–30.3

24.8–34.0

Stage 3, n (%)

 Hospital

1

5

4

2

12 (9.8)

28.1 ± 3.9

19.8–33.5

25.7–30.6

22.7–32.3

 Literature

3

12

33

20

68 (37.2)

25.6 ± 3.2

19.3–33.4

24.9–26.4

21.0–31.6

 Overall

4

17

37

22

80 (26.2)

26.0 ± 3.4

19.3–33.5

25.3–26.8

21.0–31.9

Stage 4, n (%)

 Hospital

0

1

2

5

8 (6.6)

24.5 ± 2.8

20.2–28

22.1–26.9

20.8–27.9

 Literature

0

9

25

47

81 (44.3)

22.7 ± 4.3

13.7–31.8

21.7–23.6

15.5–28.9

 Overall

0

10

27

52

89 (29.2)

22.8 ± 4.3

13.7–31.8

22.0–23.7

15.7–28.9

  1. a In nine cases, we retained the lowest temperature of the thermometer as the actual temperature; p < 0.05 for T° between hospital and literature for stages 1, 2, and 3 (but not for stage 4)
  2. b 90% prediction intervals were calculated using quantiles 5 and 95%, such that the probabilities that the temperature of an individual is found either below or above that range are both equal to 5%
  3. T° = core body temperature in °C