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Table 3 Bivariate and multivariable analysis of factors associated with premenstrual syndrome among secondary and preparatory school students in Debremarkos town, North West Ethiopia in 2016

From: Premenstrual syndrome and factors associated with it among secondary and preparatory school students in Debremarkos town, North-west Ethiopia, 2016

Variables

PMS

Crude OR (95% CI)

AOR (95% CI)

No

Yes

Age (years)

90

402

1.27 (1.09, 1.48)

1.20 (1.01, 1.44)*

Nonacademic duty

 Not at all

26

61

1.00

1.00

 Simple

7

57

3.47 (1.40, 8.62)

2.46 (0.92, 6.60)

 Heavy

57

283

2.12 (1.23, 3.63)

2.13 (1.17, 3.89)*

Physical activity

 Not at all

39

224

2.73 (1.43, 5.19)

1.01 (0.57, 1.77)

 Irregularly

32

138

2.05 (1.05, 3.40)

0.49 (0.25, 1.02)

 Regularly

19

40

1.00

1.00

Coffee intake in cups

 0

59

180

1.00

1.00

 1–4

29

156

1.76 (1.08, 2.89)

1.93 (1.12, 3.31)*

 ≥ 5

2

66

10.8 (2.57, 45.5)

6.79 (1.50, 30.77)*

Age at menarche (years)

 9–12

16

155

3.14 (1.69, 5.79)

2.68 (1.32, 5.47)**

 13–14

45

139

1.00

1.00

 15–17

28

107

1.24 (0.73, 2.11)

1.09 (0.60, 1.99)

Menstrual pattern

 Regular

72

299

1.00

1.00

 Irregular

18

103

1.38 (0.79, 2.42)

0.49 (0.07, 3.29)

Menstrual cycle length

 < 21

19

112

1.38 (0.79, 2.40)

2.26 (0.35, 14.57)

 21–35

67

286

1.00

1.00

 > 35

4

4

0.23 (0.06, 0.96)

0.13 (0.02, 0.75)*

History of intercourse

 Yes

14

24

1.00

1.00

 No

76

378

2.90 (1.44, 5.86)

5.03 (2.20, 11.51)**

  1. *≥ P < 0.05; **≥ P < 0.001