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. 2022 Sep 23;22:559. doi: 10.1186/s12887-022-03619-1

Table 3.

Edi Min, Edi Peak, and Respiratory Rate during the various studied statesa,b,c

N Edi Min (μV) Edi Peak (μV) Respiratory Rate
Feeding states
 Pre-prandial 23

3.01 ± 1.14

(CV 0.38)

9.95 ± 3.82

(CV 0.38)

48.57 ± 7.21
 Post-prandial 23

3.34 ± 1.15

(CV 0.34)

10.89 ± 3.82

(CV 0.35)

48.36 ± 6.16
p-value 0.171 0.172 0.883
Resting states
 Asleep 24

2.69 ± 0.82

(CV 0.30)

9.11 ± 2.92

(CV 0.32)

47.37 ± 5.69
 Awake 24

4.07 ± 1.45

(CV 0.36)

13.43 ± 4.49

(CV 0.33)

49.28 ± 6.64
p-value <0.001 <0.001 0.093
Kangaroo Care
 No skin-to-skin care 24

3.04 ± 0.95

(CV 0.31)

10.14 ± 3.53

(CV 0.35)

47.67 ± 5.40
 Skin-to-skin care 3

2.51 ± 0.32

(CV 0.13)

7.01 ± 0.50

(CV 0.07)

55.20 ± 5.79
p-value 0.099 0.013 0.198

aData is presented as mean ± standard deviation (coefficient of variation)

bEdi min = minimum electrical activity of the diaphragm

cEdi peak = peak electrical activity of the diaphragm