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Table 2 Comparison of PSG measures

From: Non breathing-related sleep fragmentation and imaging markers in patients with atherosclerotic cerebral small vessel disease (CSVD): a cross-sectional case-control study

GroupsnSOL, minTST, minSE, %WASO, minAHI, per hourPLMSI
Study group8425.3 ± 14.5314.8 ± 88.561.5 ± 10.8131.5 ± 51.23.4 ± 1.510.3 ± 8.7
Control group 19.8 ± 13.8368.6 ± 98.272.4 ± 13.496.8 ± 42.13.8 ± 1.26.7 ± 5.9
t241.7231.3282.3972.7590.1242.605
P 0.0950.1950.0310.0110.9570.019
GroupsnREM (%)NREM-1 (%)NREM-2 (%)NREM-3 (%)ArI, per hourPLMAI
Study group8416.4 ± 4.719.2 ± 3.452.2 ± 11.410.4 ± 4.526.9 ± 7.45.6 ± 5.2
Control group2419.5 ± 5.512.1 ± 1.253.4 ± 9.513.5 ± 5.219.8 ± 7.73.7 ± 2.8
t 2.1044.2410.2852.2142.4722.352
P 0.0450.0000.6570.0390.0210.036
  1. Abbreviations: SOL sleep onset latency; TST total sleep time; SE sleep efficiency; WASO wake after sleep onset; REM rapid eye movement sleep; NREM non rapid eye movement sleep; AHI apnea–hypopnea index; ArI arousal index; PLMSI periodic limb movement in sleep index; PLMAI periodic limb movement related arousal index