Table 2.

Description of PSG characteristics of pediatric PTSD population and controls.

Description of PSG Characteristics of PTSD Population and Controls
Variables	PTSD (n = 11)	Controls (n = 11)	p
Total Sleep Time, TST (min)	565.6 (±117.7)	557.3 (±64.5)	0.82
Sleep Efficiency (TTS/PTS × 100) (%)	90.1 (±6.4)	93.6 (±4.3)	0.30
Sleep efficiency (%)	86.6 (±7.8)	88.0 (±5.8)	0.82
Sleep latency, LE (min)	21.7 (±19.3)	22.1 (±23.6)	0.91
Time awake after sleep, WASO (min)	62.2 (±35.6)	52.3 (±29.6)	0.65
Total sleep time, DTV (LE + WASO) (min)	59.2 (±35.6)	38.2 (±27.9)	0.30
Number Changes Stages	184.1 (±70.7)	158.5 (±87.4)	0.11
% N1	8.6 (±6.7)	3.9 (±2.4)	0.08
% N2	43.6 (±10.6)	43.5 (±13.0)	0.73
% N3	25.0 (±11.1)	26.4 (±10.5)	0.86
REM	20.9 (±5.0)	24.3 (±6.6)	0.77
% Total NREM	78.1 (±5.0)	74.7 (±6.6)	0.77
Total micro-arousals index (index/h)	14.8 (±10.8)	8.2 (±2.5)	0.039 *
Total arousals index (index/h)	13.3 (±1.5)	12.6 (±13.9)	0.06
Index micro-arousals + arousals total (index/h)	18.1 (±11.5)	11.5 (±3.2)	0.042 *
Average HR TTS (bpm)	71.6 (±10.6)	76.1 (±11.9)	0.21

Data presented as means (±standard deviation) for the different values. PTSD: posttraumatic stress disorder; WASO: wake after sleep onset; TTS: total sleep time N1%: percentage of light slow wave sleep at sleep onset, stage 1 N2%: percentage of light slow wave sleep, stage 2 N3%: percentage of deep slow wave sleep, stage 3 SP%: percentage of REM sleep; PM: periodic movement; REM: rapid eye movement; NREM: non-rapid eye movement; HR: heart rate. *: p > 0.05.