Table 2 Sleep parameters of the included patientsa

From: Pathological pallidal beta activity in Parkinson’s disease is sustained during sleep and associated with sleep disturbance

 

Parkinson’s disease (n = 12)

Dystonia (n = 20)

P valuesb

TTB (min)

494.0 (51.2)

509.0 (59.0)

0.599

TST (min)

298.4 (108.2)

368.2 (75.0)

0.012

WASO (min)

222.0 (143.0)

138.4 (55.0)

0.129

SL (min)

50.1 (55.7)

14.2 (23.7)

0.049

RSL (min)

206.4 (181.3)

108.5 (77.0)

0.042

N1pct (%)

8.5 (14.9)

7.1 (7.5)

0.800

N2pct (%)

60.6 (15.4)

65.8 (17.5)

0.302

N3pct (%)

14.9 (10.9)

8.1 (10.6)

0.115

Rpct (%)

13.0 (6.0)

16.1 (9.8)

0.037

SE (%)

59.9 (29.6)

74.3 (12.9)

0.064

Sfrag (n)c

15.5 (8.8)

9.5 (5.2)

0.015

RSWA (%)d

26.1 (24.9)

7.8 (14.8)

0.083

  1. TTB total time in bed, TST total sleep time, WASO wake after sleep onset, SL sleep latency, RSL REM sleep latency, N1pct percentage of the NREM stage 1 sleep, N2pct percentage of the NREM stage 2 sleep, N3pct percentage of the NREM stage 3 sleep, Rpct percentage of the REM sleep, SE sleep efficiency, Sfrag sleep fragmentations, RSWA REM sleep without atonia.
  2. aDescriptive data are presented as the median (interquartile range).
  3. bP Statistics are obtained using two-sided Mann–Whitney U test without applying the Bonferroni correction. Significant comparisons with uncorrected P value < 0.05 are highlighted in bold.
  4. cSleep fragmentation is quantified as the times that sleep is interrupted by >2 minutes’ wakefulness.
  5. dRSWA is quantified as the percentage of REM sleep time when EMG activities are higher than two times the 5th percentile of the chin EMG activities during NREM sleep (detailed in the “Methods” section).
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