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Table 1 Comparing demographic and sleep parameters among patients and controls

From: Relationship between periodic limb movement and seizure recurrence in genetic generalized epilepsy

  Group I
(n = 10)
Group II
(n = 11)
Group III
(n = 9)
Control
(n = 30)
p value
Male (%) 30% 45.5% 33.3% 46.7 0.741
Age (in years) 17.5 (9–24) 13 (11–29) 14 (10–18) 17 (9–28) 0.356
BMI (kg/m2) 21 (17.8–35.5) 22.1 (18–31.2) 23.4 (17.2–27) 23.3 (18–32.7) 0.937
Age at onset of epilepsy (years) 15.90 (9–22) 12.82 (10–20) 11.89 (8–17) 0.042*
Frequency of seizures at onset of presentation per month 0.85 (0.03–8) 0.21 (0.11–1.4) 0.35 (0.11–2.1) 0.115
Positive family history (%) 60 45.5 66.7 0.660
PSQI 4.6 (1–12) 4.18 (1–11) 3.89 (1–12) 3.37 (1–13) 0.880
PSQI > 5 (%) 30 18.2 22.2 10 0.874
Positive first EEG (%) 70 72.7 88.9 0.650
Total sleep time (min) 342 (219–447) 339 (309–492) 412 (272–478) 391 (284–552) 0.311
Sleep latency (min) 3.5 (0.5–31) 8 (10–16) 5 (0.5–8) 5.73 (1.0–11.5) 0.0.368
Sleep efficiency (%) 94 (80–98) 93 (89–100) 97 (91–98) 96.83 (91–100) 0.230
REM latency (min) 19.25 (5–244) 118 (7–213) 118 (12–211) 85 (3.50–102.0) 0.063
Stage 1 sleep (%) 2.0 (1.0–9.0) 8.0 (1.0–12.0) 1.0 (1.0–5.0) 2.0 (1.0–4.0) 0.003*
Stage 2 sleep (%) 52.90 (36–71) 46.27 (33–73) 53.44 (35–59) 54.40 (37–70) 0.420
Slow-wave sleep (%) 27 (12–43) 37 (11–44) 35 (21–62) 27.0 (1.0–47) 0.192
REM (%) 21 (13–25) 9 (5–29) 8 (3–15) 18 (10–28) 0.015*
Arousal index/h 14 (4.7–28) 16.8 (11.4–24) 13 (6–28) 9.6 (6.0–31.5) 0.460
PLM index 0.85 (0.1–17.8) 10.8 (1.5–23.8) 15.1 (0.8–23.8) 2.8 (0.2–45.7) 0.010*
PLM index > 5 (%) 20 45.5 77.6 6.7 0.046*
  1. BMI body mass index, P p value for comparing between the studied groups, PLM periodic limb movement, PSQI Pittsburgh Sleep Quality Index, REM rapid eye movement, *Statistically significant at p ≤ 0.05