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Table 3 Vital parameters and subjective fatigue (based on the modified Borg-scale) (n = 216)

From: How effective are chest compressions when wearing mask? A randomised simulation study among first-year health care students during the COVID-19 pandemic

  

Type of mask

p-value

Mean difference [CI 95%]

SMG (n= 108)

CMG (n= 108)

Mean blood pressure (Systolic) (Hgmm)

Before

121.66 ± 13.52

121.10 ± 14.25

0.77

0.6 [-3.1, 4.2]

After

128.55 ± 15.12

127.07 ± 15.41

0.48

1.4 [-2.6, 5.6]

Mean blood pressure (Diastolic) (Hgmm)

Before

74.20 ± 12.78

73.86 ± 9.20

0.82

0.3 [-2.6, 3.3]

After

72.05 ± 9.55

72.65 ± 8.78

0.63

-0.6 [-3.1, 1.9]

Mean heart rate/pulse (/min)

Before

90.26 ± 19.05

90.12 ± 19.17

0.96

0.1 [-4.9, 5.2]

After

106.35 ± 21.87

106.61 ± 23.94

0.93

-0.2 [-6.4, 5.9]

Mean oxygen-saturation (%)

Before

97.88 ± 1.60

97.82 ± 1.50

0.79

0.1 [-0.4, 0.5]

After

97.16 ± 1.91

97.16 ± 1.92

0.99

0 [-0.5, 0.5]

Mean respiratory-rate (/min)

Before

15.39 ± 2.51

15.19 ± 2.67

0.58

0.2 [-0.5, 0.9]

After

21.08 ± 3.53

21.01 ± 3.83

0.88

0.1 [-0.9, 1.1]

Mean Borg-scale (1–10)

Before

4.45 ± 1.76

4.26 ± 1.69

0.19

0.3 [-0.2, 0.7]

After

5.72 ± 1.69*

5.56 ± 1.67*

0.49

0.2 [-0.3, 0.6]

  1. Data are normally distributed
  2. Numbers are demonstrated as mean and standard deviation. Differences between the SMG and CMG related to the fatigue (vital parameters, Borg-scale) were measured using t-test
  3. SMG Surgical mask group, CMG Cloth mask group, CI Confidence interval
  4. *p < 0.01 compared to the Borg-scale after the 2-min continuous chest-compression session (t-test was used)