Table 3.

Physiological Parameters Before and After Covering the Head With the Duvet

2½ Months5 Months
Prone n = 30Supine n = 30Prone n = 23Supine n = 25
No CoverCoverDBMSEPNo CoverCoverDBMSEPP1No CoverCoverDBMSEPNo CoverCoverDBMSEPP1
Heart rate (beats/min)125.7131.15.41.7.003119.4123.33.91.7.03<.001117.2124.47.11.6<.001113.7116.12.41.4.1<.001
Respiratory rate (breaths/min)28.336.38.01.3<.00127.634.97.31.6<.001.425.432.67.21.4<.00124.830.25.56.3<.001.2
Peripheral skin temperature (°C)36.236.60.40.1.00136.036.40.40.1.004.0136.136.40.30.1.0235.836.10.30.1.05.09
Transcutaneous Pco2, (mm Hg)40.341.10.80.3.0239.940.00.10.3.7.639.439.90.050.1.00737.737.80.10.2.3.3
Transcutaneous Po2, (mm Hg)65.368.43.10.9.0162.464.42.01.4.3.0367.168.41.31.1.265.465.80.60.9.6.3
Oxygen saturation (%)99.299.50.40.1.00599.399.40.20.2.2.699.099.10.10.2.599.099.40.40.2.05.3
  • Abbreviations: DBM, differences between means; SE, standard error of differences between means; P, level of significance before vs after covering; P1, level of significance between prone and supine at maximum mean CO2while the head was covered.