. 2018 Oct 1;9(6):829–835. doi: 10.1007/s41999-018-0115-6

Table 2.

Difference in sleep between pre- and post-intervention period and between pre-intervention period and wash-out period (paired Wilcoxon signed-rank test)

	Pre (%)	Post (%)	Difference^a	Wash-out period	Difference^b
Total sleep score			p = 0.015*		p = 0.358
Score 1 = quiet sleep	83.1	86.6	p = 0.032	82.0	p = 0.840
Score 2 = restless sleep	1.7	1.2	p = 0.509	1.9	p = 0.832
Score 3 = quietly awake	8.7	7.5	p = 0.243	8.6	p = 0.886
Score 4 = restlessly awake	6.5	4.7	p = 0.101	7.6	p = 0.603

*Significant difference

^aDifference between pre- and post-intervention period

^bDifference between pre-intervention period and wash-out period