|
Distribution of Breathing and Movement Abnormalities During Sleep |
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| Clinical Sleep Variable |
CFS (n = 35) |
NF (n = 40) |
P-value* |
|
|
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| Hypopnea |
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| Mean event/hr |
2.66 |
1.79 |
P = 0.24 |
| Range |
(0.00 – 16.03) |
(0.00 – 14.66) |
|
| Obstructive Apnea |
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| 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 |
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| Mean event/hr |
0.14 |
0.15 |
P = 0.58 |
| Range |
(0.00 – 2.28) |
(0.00 – 3.15) |
|
| Snore Index |
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| Mean |
5.31 |
4.57 |
P = 0.95 |
| Range |
(0.00 – 27.50) |
(0.00 – 34.30) |
|
| Respiratory Distress Index |
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| 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 |
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| Mean events/hr |
1.03 |
0.87 |
P = 0.62 |
| Range |
(0.00 – 11.57) |
(0.00 = 7.09) |
|
|
*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. | |||
Reeves et al. BMC Neurology 2006 6:41 doi:10.1186/1471-2377-6-41 |
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