Table 1.

Individual participant data

	Children										Teens
	Sex	PH	Age 1 (years)	Age 2 (years)	NREM clustering		REM clustering		Spindle peak 1 (Hz)	Spindle peak 2 (Hz)	Sex	PH	Age 1 (years)	Age 2 (years)	NREM clustering		REM clustering		Spindle peak 1 (Hz)	Spindle peak 2 (Hz)
	Sex	PH	Age 1 (years)	Age 2 (years)	C3	O2	C3	O2	Spindle peak 1 (Hz)	Spindle peak 2 (Hz)	Sex	PH	Age 1 (years)	Age 2 (years)	C3	O2	C3	O2	Spindle peak 1 (Hz)	Spindle peak 2 (Hz)
1	F	−	10.3	12.9	N	N	N	X	12.2	12.8	F	−	16.6	19.2	N	X	X	X	13.3	13.8
2	M	−	9.6	12	N	Y	X	X	11.7	12.4	F	−	16.6	19.2	Y	Y	Y	Y	13.3	13.4
3	M	−	10.2	12.3	N	X	X	X	11.6	12.6	F	−	15.1	17.6	N	N	Y	Y	13.1	13.6
4	M	−	10.7	13.3	N	N	X	X	12.5	13	F	−	15.2	17.7	Y	N	N	X	12.7	12.9
5	F	−	9.4	11.9	Y	Y	Y	X	11.9	11.9	M	−	15.3	17.9	Y	Y	N	X	12.9	12.9
6	M	−	10.5	12.6	Y	Y	Y	N	12.8	13	F	−	15.4	18.8	N	N	Y	X	12.9	13.9
7	M	−	9.9	12	Y	Y	Y	N	11.3	11.1	F	−	15.4	17.5	N	Y	X	Y	13.3	14.1
8	M	−	9.9	12	Y	Y	Y	Y	12.1	12.2	F	−	15.6	17.7	Y	Y	N	Y	13.3	13.3
9	M	−	10.9	13.4	X		Y		12.9	13.4	M	−	15.6	18.1	Y	Y	X	Y	13.1	13
10	M	−	9.4	11.3	Y	Y	Y	N	12.1	12	F	−	15.6	18.1	N	Y	X	N	12.6	12.9
11	F	+	9.2	12.6	N	X	N	N	12.8	13.4	F	−	15.8	18.4	Y	Y	X	X	13.4	13.4
12	M	+	9.7	12.2	Y	Y	Y	Y	11.6	11.9	M	−	15.9	18	Y	Y	Y	X	11	12
13	F	+	11.1	13.9	X	X	X	Y	12.7	12.9	F	−	16.2	18.9	X	N	X	X	12.1	12.2
14	F	+	10.2	12.8	N	Y	N	Y	12.6	13	F	−	16.2	18.8	X	N	X	X	13.6	11.3
15	M	+	10.2	11.2	Y	Y	Y	Y	12.6	12.5	F	−	16.4	19.1	N	N	Y	X	13.6	14.2
16	F	+	10.2	12.3	Y	Y	X	Y	13.2	13.2	F	+	15.2	17.6	N	N	Y	Y	12.4	12.8
17	M	+	11	13.5	Y	Y	X	X	12.4	11.6	M	+	15	17.5	Y	Y	N	N	12.4	13
18	M	+	10.2	12.7	N	X	Y	Y	12.6	13	F	+	15.3	17.6	Y	Y	Y	Y	14	14.1
19	M	+	9.2	11.7	N	N	Y	N	11.3	11.9	M	+	15.3	17.8	Y	Y	N	N	13.1	13.2
20											F	+	16	17.9	Y	Y	Y	Y	12.4	11
21											F	+	15.6	17.6	Y	N	Y	X	13.8	14
22											M	+	15.9	17.7	Y	Y	X	X	14	13.7
23											M	+	15.6	16.6	Y	Y	N	X	12.8	13.1
24											M	+	16	18	Y	Y	N	Y	12.6	12.8
25											F	+	15.7	18.2	Y	Y	N	N	12.3	12.8
26											M	+	15.2	17.7	Y	X	N	X	12.9	13.4
μ			10.1	12.5					12.3	12.5			15.7	18.0					13.0	13.1
σ			0.58	0.73					0.56	0.65			0.45	0.63					0.70	0.79

M, Male, F, female; Age 1, age at initial assessment; Age 2, age at follow-up assessment; PH: −, Negative for parental history of alcohol abuse/dependence, +, positive for parental history of alcohol abuse/dependence; X, consecutive nights did not cluster; Y, clustering successful across 4 nights; N, clustering unsuccessful across 4 nights; μ, mean; σ, standard deviation; Spindle peak 1, frequency of the peak in the sigma band on adaptation and baseline nights averaged together for the initial session; Spindle peak 2, frequency of the peak in the sigma band on adaptation and baseline nights averaged together for the follow-up session.