Table 1.

Characteristics of the study population

	Offspring (n = 19)	Controls (n = 18)	P‐value
Men, n (%)	9 (47%)	10 (56%)	0.75
Age, years	65.3 ± 1.2	64.7 ± 1.2	0.71
Men	67.0 ± 2.2	64.9 ± 1.3	0.42
Women	63.9 ± 1.1	64.5 ± 2.1	0.78
BMI, kg/m2	24.5 ± 0.9	25.7 ± 1.0	0.32
Men	25.0 ± 1.1	25.9 ± 1.0	0.57
Women	24.0 ± 1.3	25.5 ± 1.9	0.50
Fat mass, %	31.8 ± 1.9	31.2 ± 2.0	0.83
Men	24.7 ± 1.1	25.0 ± 1.0	0.89
Women	38.3 ± 1.6	38.2 ± 2.0	0.99
Age father, years	82.3 ± 4.5	76.8 ± 2.2	0.28
Men	80 ± 8.2	76 ± 2.9	0.66
Women	85 ± 4.6	78 ± 3.4	0.27
Age mother, years	92.1 ± 1.8	78.6 ± 3.3	<0.01
Men	93 ± 2.6	82 ± 2.2	0.01
Women	92 ± 2.7	75 ± 6.9	0.03
Chronotype >0 min disturbance, N (%)a	5 (26.3)	4 (22.2)	0.77
Men	4 (44.4)	2 (20.0)	0.25
Women	1 (10.0)	2 (25.0)	0.40
Chronotype >30 min disturbance, N (%)	3 (15.8)	2 (11.1)	0.68
Men	3 (33.3)	1 (10.0)	0.21
Women	0 (0.0)	1 (12.5)	0.25
Sleep Quality PSQI, median (IQR)b	4.0 (2.0–7.0)	3.0 (1.0–5.0)	0.91
Men	3.0 (1.0–4.0)	2.0 (1.0–5.0)	0.78
Women	6.0 (4.0–9.0)	4.0 (1.0–6.0)	0.15

BMI, body mass index.

Data are presented as the mean ± SEM, unless indicated otherwise. BMI and fat mass were missing for 1 participant. P‐value calculated for offspring vs. controls, Student's t‐test.

^aScores obtained from Munich Chronotype Questionnaire (P‐values calculated with Mann–Whitney test).

^bScores obtained from Pittsburg sleep quality index, ranging from 0 (good sleep) to 21 (worse sleep; P‐values calculated with Mann–Whitney test).