Table 4.

Results of the t-tests adjusted for number of comparisons in person-level medians and variability of sleep parameter between the three identified phenotypes (N1=64, N2=11, N3=43). Bonferroni-adjusted p-values are used.

Sleep Parameter	t-statistic (df)	p-value	Sleep Parameter	t-statistic (df)	p-value
TST			TST SD
Phenotypes 1–2	−1.63 (21.5)	0.238	Phenotypes 1–2	6.60 (42.4)	<0.0001
Phenotypes 1–3	−2.98 (92.7)	0.011	Phenotypes 1–3	0.65 (99.9)	0.566
Phenotypes 2–3	−0.95 (25.3)	0.351	Phenotypes 2–3	−5.81 (39.1)	<0.0001
TIB			TIB SD
Phenotypes 1–2	−5.98 (18.5)	<0.0001	Phenotypes 1–2	6.11 (26.3)	<0.0001
Phenotypes 1–3	−3.97 (91.2)	0.0002	Phenotypes 1–3	0.65 (96.1)	0.514
Phenotypes 2–3	2.58 (22.2)	0.017	Phenotypes 2–3	−5.26 (28.8)	<0.0001
WASO			WASO SD
Phenotypes 1–2	−6.35 (10.5)	0.0002	Phenotypes 1–2	−2.56 (12.8)	0.048
Phenotypes 1–3	−3.86 (55.1)	0.0006	Phenotypes 1–3	−2.56 (63.3)	0.038
Phenotypes 2–3	4.41 (13.5)	0.0006	Phenotypes 2–3	0.518 (21.9)	0.610
SE			SE SD
Phenotypes 1–2	7.27 (12.1)	<0.0001	Phenotypes 1–2	−2.29 (10.8)	0.086
Phenotypes 1–3	3.04 (54.0)	0.004	Phenotypes 1–3	−2.87 (62.7)	0.017
Phenotypes 2–3	−4.85 (18.8)	0.0002	Phenotypes 2–3	0.96 (13.5)	0.352
Length of nightly awakening			Bed time SD
Phenotypes 1–2	−4.95 (10.4)	0.002	Phenotypes 1–2	0.84 (12.8)	0.414
Phenotypes 1–3	−2.17 (46.6)	0.035	Phenotypes 1–3	−6.88 (82.0)	<0.0001
Phenotypes 2–3	3.06 (18.6)	0.013	Phenotypes 2–3	−4.66 (15.7)	<0.001
NOA			Awakening Time SD
Phenotypes 1–2	−5.05 (17.8)	0.0002	Phenotypes 1–2	4.57 (34.8)	0.0002
Phenotypes 1–3	−2.47 (79.8)	0.031	Phenotypes 1–3	0.81 (96.9)	0.419
Phenotypes 2–3	2.52 (26.4)	0.031	Phenotypes 2–3	−3.56 (36.0)	0.002
Bed time			PROMIS T-score
Phenotypes 1–2	−56.7 (23.8)	<0.0001	Phenotypes 1–2	−0.85 (11.6)	1
Phenotypes 1–3	−10.2 (44.5)	<0.0001	Phenotypes 1–3	0.13 (69.5)	1
Phenotypes 2–3	5.66 (45.9)	<0.0001	Phenotypes 2–3	0.86 (15.8)	1
Awakening time
Phenotypes 1–2	2.76 (13.8)	0.046
Phenotypes 1–3	1.75 (67.4)	0.168
Phenotypes 2–3	−1.17 (23.1)	0.199