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Table 2 Logistic regression analysisa of significant risk factors associated with primary dysmenorrhea

From: Prevalence, risk factors, and management practices of primary dysmenorrhea among young females

Risk factor

B

SE

Wald

AOR

95% CI

P

Constant

− 2.4

0.55

18.78

0.08

 

< 0.001b

Academic specialization (reference: non-medical)

 Medical

0.50

0.25

4.10

1.66

1.01–2.72

0.04b

Parity (reference: nulliparous)

 Parous

− 1.68

0.45

13.79

0.18

0.07–0.45

< 0.001b

Family history of dysmenorrhea (reference: no)

 Yes

0.92

0.25

13.29

2.52

1.53–4.16

< 0.001b

Weight loss attempt (reference: no)

 Yes

0.72

0.24

8.47

2.05

1.26–3.34

0.004b

The intensity of blood flow (reference: light)

 Moderate (average)

1.06

0.43

5.96

2.89

1.23–6.79

0.01b

 Heavy

2.33

0.60

14.95

10.28

3.15–33.49

< 0.001b

  1. AOR adjusted odds ratio, B coefficient for the constant in the null model, CI confidence interval, SE standard error, Wald Wald chi-square test that tests the null hypothesis that the constant equals 0
  2. aBinary logistic regression analysis was conducted using significant variables associated with dysmenorrhea, using backward stepwise analysis. Hosmer and Lemeshow test: 11.857
  3. bStatistically significant (P < 0.05)