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Table 3 Multiple logistic regression - socio-economic, lifestyle and reproductive risk factors for PMDD - univariate and multivariate analysis (* p < 0.05)

From: The complexity of premenstrual dysphoric disorder - risk factors in the population of Polish women

Variables

Univariate analysis

OR (95%CI)

Multivariate analysis

OR (95%CI)

Age (years)

  

18-25

Referent

 

25-30

0.62 (0.20-1.90)

-

30-35

063 (0.18-2.22)

-

35-40

1.47 (053-4.07)

-

40-45

1.04 (0.37-2.94)

-

Residence

  

Rural areas

Referent

 

Small city (population below 50,000)

0.70 (0.15-3.14)

-

Large city (population over 50,000)

4.11 (1.42-11.96)*

0.99 (0.33-2.95)

Education

  

Primary/vocational

Referent

Secondary

0.94 (045-1.93)

-

Tertiary

0.04 (0.05-0.30)*

0.08 (0.01-0.71)*

Employment status

  

Employed

Referent

Unemployed

2.29 (1.03-5.11)*

0.98 (0.01-11.80)

Retired

3.11 (0.40-24.51)

-

Student

0.50 (0.07-3.77)

-

Type of work performed

  

Manual

Referent

White-collar

0.25 (0.10-0.62)*

0.35 (0.11-1.15)

Marital status

  

Single

Referent

 

Married

1.01 (0.54-1.86)

-

Widowed

-

-

Divorced

2.68 (1.20-6.84)*

0.93 (0.25-3.43)

Physically active

  

No

Referent

Yes

1.03 (0.68-1.56)

-

Cigarette smoking

  

No

Referent

Yes

2.33 (1.16-4.71)*

1.95 (0.78-4.91)

Duration of cigarette smoking (years)

1.02 (1.95-1.10)

-

Number of cigarettes a day

0.10 (0.93-1.07)

-

Alcohol consumption

 

No

Referent

 

Yes

2.66 (1.13-6.27)*

2.43 (0.86-6.89)

BMI

0.97 (0.87-1.08)

-

Menarche (years)

0.87 (0.66-1.14)

-

History of previous pregnancies

  

No

Referent

 

Yes

0.77 (0.38-1.55)

-

History of previous deliveries

  

No

Referent

 

Yes

0.84 (0.42-1.69)

-

History of previous miscarriages

  

No

Referent

 

Yes

1.74 (0.60-5.08)

-

Breast feeding

  

No

Referent

 

Yes

1.12 (0.26-4.94)

-