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Table 2 Autonomic nervous regulation in responsible to postural change of the control group and study groups at baseline and after operation among male non-employed participants

From: Autonomic nervous system dysregulation in response to postural change in patients with pectus excavatum in Taiwan: a pilot study

 

Control (n = 14) at baseline

Study (n = 20) at baseline

Study (n = 20) after operation

Supine

Sitting up

p-value

Supine

Sitting up

p-value

Supine

Sitting up

p-value

LF nu,%

50.3 (36.9,60.4)

67.4 (52.5,79.8)

0.035*

55.0 (45.3,67.8)

54.9 (41.4,71.5)

0.654

48.7 (43.9,60.2)

70.2 (56.0,78.5)

0.005*

HF nu,%

49.7 (39.6,63.1)

32.6 (20.2,47.5)

0.035*

45.1 (32.2,54.7)

45.1 (28.5,58.6)

0.654

51.3 (39.8,56.1)

29.8 (21.5,44.0)

0.005*

LF/HF

1.02 (0.59,1.54)

2.08 (1.11,4.05)

0.030*

1.22 (0.83,2.11)

1.22 (0.71,2.58)

0.322

0.95 (0.78,1.51)

2.36 (1.29,3.67)

0.012*

  1. Continuous variables were presented as median (IQR) and were analyzed using the Wilcoxon Signed Ranks test. All statistical assessments were two-tailed and considered significant as p < 0.05. Bold font highlight the statistic significance with p < 0.05
  2. HF, high frequency; IQR, interquartile range; LF, low frequency; n.u., normalized units