Table 2 Factors associated with bacterial vaginosis based on the conditional logistic regression analyses

Age

1.10

0.90

1.35

0.328

---

---

---

---

---

Spousal age

1.03

0.96

1.10

0.366

---

---

---

---

---

Educational level

High school or below

1.38

0.78

2.42

0.260

---

---

---

---

---

University degree

Reference

Reference

Spousal educational level

High school or below

0.84

0.50

1.40

0.516

---

---

---

---

---

University degree

Reference

Reference

Income level

Not enough to support the family adequately

1.00

0.52

1.88

1.00

---

---

---

---

---

Enough to support the family adequately

Reference

Reference

Occupation

Housewife

1.31

0.72

2.38

0.367

---

---

---

---

---

Employed

Reference

Reference

Cigarette/Hookah Smoking

Yes

4.25

1.43

12.63

0.009

6.15

1.44

26.13

0.014

0.051

No

Reference

Reference

Vitamin D supplement use

Regular

1.30

0.63

2.68

0.464

---

---

---

---

---

Irregular

1.58

0.81

3.06

0.173

---

---

---

---

---

No consumption

Reference

Reference

Vaginal douching

Yes

1.60

0.95

2.70

0.073

1.97

0.99

3.94

0.052

0.119

No

Reference

Reference

Pregnancy history

Yes

0.64

0.30

1.38

0.261

---

---

---

---

---

No

Reference

Reference

Delivery history

Yes

0.68

0.31

1.48

0.339

---

---

---

---

---

No

Reference

Reference

Abortion history

Yes

1.13

0.64

1.96

0.675

---

---

---

---

---

No

Reference

Reference

Premature delivery

Yes

0.55

0.25

1.20

0.136

0.39

0.14

1.08

0.072

0.140

No

Reference

Reference

History of medication taking for vaginitis

Yes

2.0

0.24

1.03

0.061

0.48

0.20

1.14

0.100

0.160

No

Reference

Reference

History of cryotherapy for vaginitis

Yes

0.86

0.41

1.85

0.706

0.21

0.02

1.91

0.168

0.244

No

Reference

Reference

History for cauterization for vaginitis

Yes

3.57

0.72

16.8

0.118

---

---

---

---

No

Reference

Reference

Dairy consumption

Never or rarely

0.95

0.52

1.75

0.892

---

---

---

---

---

Less than 2 servings/day

0.84

0.41

1.72

0.646

---

---

---

---

---

Two or more servings/day

Reference

Reference

Menstruation status

Regular

0.18

0.02

1.62

0.128

0.34

0.01

8.46

0.513

0.586

Irregular

0.21

0.02

1.88

0.166

0.24

0.01

5.62

0.391

0.481

Menopause

Reference

Reference

Family planning methods

Coitus Interruptus

0.29

0.12

0.67

0.004

0.20

0.06

0.63

0.006

0.048

Condom

0.45

0.21

0.94

0.036

0.28

0.10

0.79

0.016

0.051

Hormonal

1.25

0.34

4.51

0.34

1.11

0.24

5.17

0.889

0.889

IUD

0.58

0.19

1.78

0.348

0.48

0.13

1.81

0.285

0.380

Tubal ligation

0.40

0.10

1.55

0.187

0.15

0.01

1.23

0.079

0.140

Vasectomy

0.94

0.14

6.12

0.951

0.54

0.03

7.72

0.653

0.696

No contraception

Reference

Reference

Age at first sexual intercourse

0.89

0.83

0.96

0.003

0.86

0.78

0.95

0.004

0.048

Duration of sunlight exposure

0.99

0.99

1.00

0.371

---

---

---

---

---

BMI

0.98

0.92

1.05

0.741

---

---

---

---

---

Frequency of sexual intercourse per week

0.66

0.11

3.98

0.657

---

---

---

---

---

Serum vitamin D level

Deficient

1.77

0.79

3.95

0.161

4.34

1.39

13.54

0.011

0.051

Insufficient

2.07

0.90

4.73

0.084

3.65

1.23

10.85

0.020

0.053

Sufficient

Reference

Reference