Table 4 Comparison between the ‘absent’ group and ‘non-absent’ group

 Age, years ± SD

17.0 ± 1.0

16.6 ± 1.0

<0.001*

 Regular exercise habits

47 (43.9)

443 (55.8)

0.03*

 Prefer sweets

85 (79.4)

627 (79.0)

1.000

 Prefer salty food

58 (54.2)

293 (36.9)

0.001*

 Drink coffee

36 (33.6)

204 (25.7)

0.09

 Depressed mood

47 (43.9)

133 (16.8)

<0.001*

 Anxiety or tension

62 (57.9)

215 (27.1)

<0.001*

 Tearful

53 (49.5)

141 (17.8)

<0.001*

 Anger or irritability

64 (59.8)

209 (26.3)

<0.001*

 Decreased interest in work, home, or social activities

32 (29.9)

63 (7.9)

<0.001*

 Difficulty concentrating

41 (38.3)

125 (15.7)

<0.001*

 Fatigue or lack of energy

71 (66.4)

228 (28.7)

<0.001*

 Overeating or food cravings

48 (44.9)

185 (23.3)

<0.001*

 Insomnia or hypersomnia

57 (53.3)

140 (17.6)

<0.001*

 Feeling overwhelmed

27 (25.2)

57 (7.2)

<0.001*

 Physical symptoms

64 (59.8)

202 (25.4)

<0.001*

 Work efficiency or productivity, home responsibility

41 (38.3)

99 (12.5)

<0.001*

 Social life activities

28 (26.2)

34 (4.3)

<0.001*

 Relationships with coworkers or family

23 (21.5)

28 (3.5)

<0.001*