. 2020 Jan 24;43(7):zsz322. doi: 10.1093/sleep/zsz322

Table 1.

Characterization of PWA-drop features according to sex, age, and body mass index

PWA-drop features	Sex			Age			Body mass index
	Women	Men	p	<60 years	≥60 years	p	Eutrophic	Overweight	Obese	p
Index, event/hour	50.0 ± 19.8	52.2 ± 19.8	0.010	54.5 ± 20.0	46.5 ± 20.0	<0.0001	51.0 ± 20.2	51.8 ± 20.2	49.4 ± 20.7	0.165
Mean duration, second	13.6 ± 2.6	14.4 ± 2.6	<0.0001	13.5 ± 2.6	14.6 ± 2.6	<0.0001	13.6 ± 2.5	14.3 ± 2.7^a	14.3 ± 2.8^a	<0.0001
Mean AUC, %seconds	502 ± 112	554 ± 112	<0.0001	528 ± 112	527 ± 112	0.868	512 ± 108	539 ± 115^a	539 ± 126^a	<0.0001
Mean duration-normalized index, event/hs	3.8 ± 1.6	3.8 ±1.6	0.576	4.2 ± 1.7	3.3 ± 1.7	<0.0001	3.9 ± 1.7	3.8 ± 1.7	3.6 ± 1.7^a	0.035
Mean AUC-normalized index, event/ hour %seconds	0.10 ± 0.04	0.09 ± 0.04	0.004	0.11 ± 0.04	0.09 ± 0.04	<0.0001	0.10 ± 0.04	0.10 ± 0.04	0.09 ± 0.04^a	0.012

Data are presented as mean ± SD. Data were evaluated by independent T-test and ANOVA followed by Bonferroni’s post-hoc test as appropriate.

^aStatistically different from eutrophic group.