With low-sleep-quality

Without low-sleep-quality

p-value

n = 196

n = 321

Sleep duration (hours) †

6.1 (6, 5 - 7)

7.0 (7, 6 - 8)

<0.0001 §

PSQI-J score †

8.3 (7.5, 7 - 10)

3.3 (3, 2 - 4)

<0.0001 §

Days of skipping breakfast (days/week) †

1.7 (0, 0 - 3)

1.6 (0, 0 - 2)

0.293 §

Days of skipping lunch (days/week) †

0.9 (0, 0 - 0)

0.7 (0, 0 - 0)

0.252 §

Days of skipping dinner (days/week) †

0.5 (0, 0 - 0)

0.2 (0, 0 - 0)

0.038 §

Days of eating out at morning (days/week) †

1.2 (0, 0 - 2)

0.8 (0, 0 - 1)

0.016 §

Days of eating out at lunch (days/week) †

2.4 (2, 0 - 5)

2.4 (1, 0 - 5)

0.443 §

Days of eating out at dinner (days/week) †

1.8 (1, 0 - 3)

1.4 (0, 0 - 2)

0.003 §

Days of exercise per week (days/week) †

1.5 (0, 0 - 3)

1.2 (0, 0 - 2)

0.225 §