Table 4 Comparison between the good and bad sleepers groups as regards polysomnographic variables
From: Sleep pattern in a group of patients undergoing hemodialysis compared to control
| Â | Good sleeper | Poor sleeper | P value |
|---|---|---|---|
Sleep onset latency | 8.5 ± 8.8 | 15.1 ± 7.7 | 0.149 |
Sleep efficiency (%) | 80.4 ± 6.8 | 62.9 ± 11.2 | 0.001 |
Sleep stage I (%) | 7.5 ± 7.5 | 26.6 ± 28.4 | 0.033 |
Sleep stage II (%) | 33.9 ± 17.6 | 38.0 ±13.6 | 0.623 |
SWS (%) | 51.7 ± 24.0 | 31.6 ± 30.7 | 0.141 |
REM sleep (%) | 6.9 ± 7.4 | 3.9 ± 5.4 | 0.399 |
REM latency (min) | 222.0 ± 66.2 | 113.5 ± 99.5 | 0.012 |
Arousal index (h) | 36.7 ± 15.6 | 30.1 ± 25.5 | 0.492 |
Sleep total apnea (h) | 9.8 ± 8.3 | 10.0 ± 13.1 | 0.962 |
Sleep obstructive apnea (h) | 5.0 ± 5.0 | 8.2 ± 11.0 | 0.375 |
Sleep central apnea (h) | 1.7 ± 1.5 | .8 ± 1.3 | 0.240 |
Mixed apnea (h) | 3.2 ± 2.8 | 1.0 ± 1.7 | 0.122 |
SL hypopnea/h | 22.4 ± 20.1 | 9.4 ± 14.5 | 0.196 |
Desaturations (h) | 30.0 ± 24 | 21.4 ± 22.7 | 0.473 |
RDI | 32.2 ± 26.1 | 19.4 ± 22.6 | 0.328 |
PLM Index | 30.7 ± 23.2 | 23.1 ± 35.1 | 0.576 |