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Table 1 Difference in mean* of back temperature, cold discomfort scale (CDS), ear and finger temperatures between the heated mattress trial (n = 23) and the unheated mattress trial (n = 23)

From: Effect evaluation of a heated ambulance mattress-prototype on body temperatures and thermal comfort - an experimental study

 

Unheated mattress trial

Heated mattress trial

  
 

Mean (SD)

Mean (SD)

Difference in mean (%)

p-value

ES

Back temperature (°C)

12.0 (2.98)

14.4 (3.70)

2.4 (20.0)

0.009 ˜ ˜

0.27 ˜

Ear temperature (°C)

−0.05 (0.42)

−0.01 (0.34)

0.04 (80)

0.69 ˜ ˜

0.00 ˜

Finger temperature (°C)

8.9 (5.15)

8.2 (5.31)

0.7 (8)

0.867††

0.35 †

Cold Discomfort Scale (CDS)

−3.5 (1.73)

−4.2 (1.78)

0.7 (20.0)

0.063††

0.38†

  1. *Difference between having spent 10 minutes in the cold room and then lying on the stretcher 10 minutes. A negative value denotes a decrease.
  2. ˜ ˜From Paired-Sample t-Test.
  3. ˜Effect Size (Eta Squared) 0.01 = small or no effect, 0.06 = moderate effect, 0.14 large effect.
  4. ††From Wilcoxon signed-rank test.
  5. †Effect Size (Cohen) 0.1 = small effect, 0.3 = medium effect, 0.5 large effect.