Table 3. Mean acoustic intensity (dB) of snoring in REM and NREM sleep according to gender

Sleep stage	Male	Female
REM	66.93±6.78*	60.24±2.23
NREM	60.13±7.05*	53.62±5.18

Statistics: paired t-test, Wilcoxon signed-rank test.
p< 0.05.
REM: rapid eye movement, NREM: non-rapid eye movement.