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Table 2 Sleep, Pain and Fatigue in SARS vs. FMS Subjects

From: Chronic widespread musculoskeletal pain, fatigue, depression and disordered sleep in chronic post-SARS syndrome; a case-controlled study

Sleep Parameter SARS (n = 22) Fibromyalgia (n = 21) Significance
  Mean (SD) Mean (SD)  
Sleep onset latency ( min.) 24.13 (21.63) 18.37 (35.39) n.s.
Total sleep time (min) 370.83 (83.84) 338.54 (76.26) n.s.
Sleep Efficiency % 77.44 (13.56) 79.34 (15.63) n.s.
Stage 1% 9.11 (4.13) 9.76 (3.66) n.s.
Stage 2% 60.22 (9.95) 54.61(5.41) 0.031
Stage 3% 7.83 (6.36) 7.35 (3.08) n.s.
Stage 4% 6.27 (5.80) 9.53 (6.18) n.s.
REM onset Latency ( min.) 136.79 (63.72) 87.26 (35.78) 0.004
REM % 16.57 (5.94) 18.77 (4.81) n.s.
Apnea/Hypopneas Index (no. per hr.of sleep) 4.70 (5.53) 3.29 (2.37) n.s.
Periodic leg movements ( no.per hr of sleep) 2.03 (5.64) 2.38 (3.81) n.s.
Arousals per hr of sleep 14.01 (7.59) 11.31 (5.31) n.s.
CAP rate per hr of sleep 71.64 ()(14.25) 70.39 (15.64) n.s.
Alpha EEG sleep (1-5) 3.00 (0.63) 3.50(0.61) 0.014
Presleep Pain Presleep Fatigue (1-7) 6.24 (4.01) 4.57 (1.57) 10.95 (5.74) 4.30 (1.08) 0.005 n.s.
Presleep Sleepiness (1-7) 2.76 (1.14) 4.30 (1.08) 0.0001
Post Sleep Pain (0-24) 7.10 (3.81) 11.75 (6.45) 0.009
Post Sleep Fatigue (1-7) 4.30 (1.87) 4.60 (1.23) n.s.
Post Sleep Sleepiness (1-7) 3.45 (1.57) 3.90 (1.12) n.s.