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Table 2 Statistical analysis results between Pre-op and Pro-op

From: Changes in bowel sounds of inpatients undergoing general anesthesia

CVs

Pre-op (n = 26)

Pro-op (n = 26)

p values

Num_bs

23.23 (13.61)

10.34 (10.86)

0.001*

Sum_bs

5,768,536 (4,326,873)

2,121,638 (1,928,966)

0.004*

Sum_Duration_bs

98,292 (52,350)

45,808 (41,512)

0.001*

Mean_Duration

0.500 (0.287)

0.515 (0.433)

0.790**

Std_Duration

0.660 (0.580)

0.411 (0.372)

0.108*

Mean_Mag_bs

58.177 (38.967)

47.921 (38.363)

0.494*

Std_Mag_bs

39.340 (32.061)

10.124 (35.826)

0.144**

Mean_RR

0.108 (0.050)

0.082 (0.028)

0.086**

Std_RR-

0.066 (0.064)

0.019 (0.034)

0.009**

Mean_Lmean

29.789 (6.750)

27.352 (12.817)

0.518*

Std_Lmean

12.089 (13.025)

6.564 (6.134)

0.017**

Mean_ENTR

4.030 (0.205)

3.947 (0.322)

0.518**

Std_ENTR

0.380 (0.105)

0.234 (0.167)

0.001*

Mean_TT

32.858 (8.974)

30.141 (16.471)

0.518*

Std_TT

17.147 (18.951)

8.405 (9.488)

0.010**

  1. Pre-op before operation, Pro-op after operation
  2. * Values of this line are presented as mean (standard deviation), and the statistical method is the paired t test because the data are normally distributed
  3. ** Values of this line are presented as median (quartile range), and the statistical method is the rank-sum test because the data are not normally distributed. CVs, characteristic values