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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