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Table 2 Distribution of Breathing and Movement Abnormalities During Sleep

From: Sleep characteristics of persons with chronic fatigue syndrome and non-fatigued controls: results from a population-based study

Clinical Sleep Variable

CFS (n = 35)

NF (n = 40)

P-value*

Hypopnea

   

   Mean event/hr

2.66

1.79

P = 0.24

   Range

(0.00 – 16.03)

(0.00 – 14.66)

 

Obstructive Apnea

   

   Mean event/hr

0.94

0.59

P = 0.003

   Range

(0.00 – 12.11)

(0.00 – 10.70)

 

Central Apnea

   

   Mean event/hr

0.36

0.15

P = 0.18

   Range

(0.00 – 2.44)

(0.00 – 1.89)

 

Mixed Apnea

   

   Mean event/hr

0.14

0.15

P = 0.58

   Range

(0.00 – 2.28)

(0.00 – 3.15)

 

Snore Index

   

   Mean

5.31

4.57

P = 0.95

   Range

(0.00 – 27.50)

(0.00 – 34.30)

 

Respiratory Distress Index

   

   Mean

4.11

2.69

P = 0.009

   Range

(0.10 – 21.21)

(0.00 – 20.35)

 

Periodic Leg Movements

   

   Mean events/hr

4.42

4.56

P = 0.35

   Range

(0.00 – 25.74)

(0.00 – 39.37)

 

Periodic Leg Movements with Arousals

   

   Mean events/hr

1.03

0.87

P = 0.62

   Range

(0.00 – 11.57)

(0.00 = 7.09)

 
  1. *P-values were generated using zero-inflated Poisson regression, adjusting for use (yes/no) of sleep medications. Mean values represent arithmetic means. Leg movement was not measured in 9 CFS cases and 1 control.
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BMC Neurology

ISSN: 1471-2377

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