Table 5 Multivariate analysis of risk factors for school absenteeism due to premenstrual symptoms

 Age (+1 age)

1.34

1.01–1.79

 Regular exercise habits

0.73

0.46–1.16

 Prefer sweets

1.04

0.60–1.83

 Prefer salty food

1.89^a

1.20–2.98

 Drink coffee

1.14

0.70–1.85

 Depressed mood

1.37

0.73–2.53

 Anxiety or tension

0.99

0.53–1.85

 Tearful

1.28

0.68–2.42

 Anger or irritability

1.58

0.86–2.90

 Decreased interest in work, home, or social activities

1.83

0.99–3.40

 Difficulty concentrating

1.12

0.63–1.97

 Fatigue or lack of energy

1.61

0.91–2.85

 Overeating or food cravings

0.85

0.5–1.43

 Insomnia or hypersomnia

2.27^a

1.46–4.17

 Feeling overwhelmed

0.79

0.40–1.55

 Physical symptoms

2.24^a

1.37–3.66

 Work efficiency or productivity, home responsibility

1.82

0.85–3.90

 Social life activities

2.71^a

1.31–5.59

 Relationships with coworkers or family

1.26

0.69–2.29