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. 2024 Jun 30;65(2):225–241. doi: 10.47162/RJME.65.2.09

Table 6.

Multinomial logistic regression of RRs and 95% CIs and p-values of risk factors found in our study among patients with malignant tumors, using patients with benign tumors as the control group

Patients’ risks

Total ( n =210)

Malignant tumor [ n , (%)]

Univariate RR

p -value

95%CI

Multivariate RR

p -value

95%CI

Obesity

109

72/98 (73.5%)

2.78

0.001

1.93–4.00

1.34

0.001

1.29–2.55

Mother’s age [years]

 ≤20

24

18/98 (18.4%)

Constant

Constant

Constant

Constant

Constant

Constant

 >20–25

50

17/98 (17.3%)

0.40

0.001

0.24–0.63

0.72

0.100

-3.26– -0.94

 >25–30

60

15/98 (15.3%)

0.33

0.001

0.20–0.54

0.69

0.393

-3.486– -1.182

 >30–35

32

18/98 (18.4%)

0.73

0.105

0.50–1.06

1.14

0.660

-2.239–0.213

 >35–40

40

30/98 (30.6%)

0.95

0.73

0.71–1.27

1.10

0.680

-1.468–1.027

Breastfeeding ≤5 months

100

72/98 (73.5%)

3.20

0.001

2.20–4.63

1.11

0.001

1.578–2.883

DSD

17

10/98 (10.2%)

1.42

0.104

0.93–2.16

0.79

0.179

-0.356–1.908

Stress

97

70/98 (71.4%)

3.04

0.001

2.13–4.34

1.33

0.001

1.526–2.824

Hormone

21

15/98 (15.3%)

1.68

0.001

1.23–2.31

1.16

0.018

1.217–2.345

Smoking

96

69/98 (70.4%)

2.74

0.001

1.94–3.86

1.36

0.001

1.329–2.594

Positive heredo-genetic history

63

47/98 (48.0%)

2.24

0.001

1.71–2.92

1.10

0.001

1.154–2.612

Abnormal birth weight

34

25/98 (25.5%)

1.72

0.001

1.30–2.29

1.08

0.003

1.442–2.104

Residence area

 Rural

97

59/98 (60.2%)

1.82

0.001

1.33–2.49

1.00

0.001

1.559–1.733

 Urban

113

39/98 (39.8%)

Pollution

100

70/98 (71.4%)

2.98

0.001

2.08–4.25

1.30

0.022

1.119–1.505

Rh positive

159

81 (82.7%)

1.61

0.037

1.03–2.51

1.11

0.860

-0.737–0.611

No postnatal vitamin D

47

20/98 (20.4%)

0.80

0.751

0.25–2.68

0.83

0.855

-0.964–0.430

No postnatal vaccination

42

18/98 (18.4%)

0.86

0.470

0.58–1.29

1.08

0.453

0.288–1.907

Menstrual disorders

36

25/98 (25.5%)

1.62

0.001

1.21–2.18

1.15

0.001

1.957–3.339

Malformations

102

77/98 (78.6%)

4.07

0.001

2.67–6.20

1.65

0.001

1.559–1.733

UTI

85

45/98 (45.9%)

1.35

0.049

1.00–1.81

1.28

0.053

0.006–1.146

CI: Confidence interval; DSD: Disorder of sex development; n: No. of cases; Rh: Rhesus; RR: Relative risk ratio; UTI: Urinary tract infection