Table 1 Sleep traits among male and female spouses in UK Biobank.
From: Correlations in sleeping patterns and circadian preference between spouses
Female spouses | Male spouses | ||
|---|---|---|---|
Self-reported traits | N (spouse-pairs) | Mean (SD) | Mean (SD) |
Age at baseline assessment | 47,420 | 56.8 (7.3) | 58.5 (7.3) |
Sleep duration | 47,169 | 7.3 (1.1) | 7.2 (1.0) |
% (n) | % (n) | ||
Chronotype | 47,235 | ||
Extreme evening preference | 6.4 (3003) | 7.0 (3291) | |
Intermediate evening preference | 26.2 (12,360) | 24.6 (11,629) | |
No preference | 8.4 (3980) | 12.8 (6047) | |
Intermediate morning preference | 35.2 (16,609) | 32.9 (15,558) | |
Extreme morning preference | 23.9 (11,283) | 22.6 (10,710) | |
Ease of waking up | 47,325 | ||
Not at all easy | 4.2 (2007) | 1.9 (889) | |
Not very easy | 15.7 (7416) | 9.3 (4400) | |
Fairly easy | 52.7 (24,930) | 48.6 (23,010) | |
Very easy | 27.4 (12,972) | 40.2 (19,026) | |
Insomnia symptoms frequency | 47,369 | ||
Never/rarely | 17.5 (8291) | 30.4 (14,393) | |
Sometimes | 50.3 (23,828) | 46.0 (21,789) | |
Usually | 32.2 (15,250) | 23.6 (11,187) | |
Snoring | |||
No | 45,546 | 69.8 (31,785) | 46.4 (21,135) |
Yes | 30.2 (13,761) | 53.6 (24,411) | |
Accelerometer-derived traits | Mean (SD) | Mean (SD) | |
Age at accelerometer assessment | 3454 | 63.1 (6.9) | 64.8 (7.0) |
L5-timing | 3454 | 27.3 (1.0) | 27.3 (1.0) |
Sleep duration | 3454 | 7.5 (0.8) | 7.3 (0.9) |
Nocturnal sleep episodes | 3454 | 16.9 (3.5) | 17.6 (3.8) |
Sleep efficiency | 3454 | 0.78 (0.06) | 0.75 (0.07) |
