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Table 6 Multivariable evaluations of the association between explanatory variables and the presence of LSIL+ lesions

From: Prevalence and risk factors for cancer of the uterine cervix among women living in Kinshasa, the Democratic Republic of the Congo: a cross-sectional study

Type of analysis

Study groups included

Number of observations*

Explanatory variables included in the model

Adjusted OR

95 % CI

Logistic regression

1 (HIV screening centres HIV-positive women)

124

Age of first sexual intercoursea

0.86

0.72 – 1.02

Number of pregnancies

  

0 – 2

1

 

3 – 5

0.95

0.31 – 2.86

6 or more

0.83

0.28 – 2.44

Abortion

1.98

0.83 – 4.75

Logistic regression

2 (HIV screening centres HIV-negative women)

123

Agea

1.11

0.95 – 1.31

Marital status

  

married

1

 

single

5.26

0.27 – 102.32

widowed

4.34

0.18 – 105.99

divorced

§

 

Number of pregnancies

  

0 – 2

1

 

3 – 5

1.15

0.07 – 18.34

6 or more

4.27

0.22 – 81.82

Logistic regression

3 (Hospitals HIV status unknown)

502

Formal employment

2.08

0.74 – 5.88

Abortion

1.65

0.53 – 5.14

≥3 lifetime sexual partners

1.75

0.69 – 4.46

Plants for vaginal care

2.85

0.75 – 10.82

Logistic regression

4 (Health centres HIV status unknown)

203

Age of first sexual intercoursea

0.86

0.68 – 1.07

Formal employment

0.30

0.06 – 1.50

GEE

1, 2 3 and 4

886

Abortion

1.60

0.97 – 2.63

≥3 lifetime sexual partners

1.29

0.83 – 1.99

Chemicals for vaginal care

0.65

0.37 – 1.14

Logistic regression

3 and 4

643

Alcohol consumption

1.76

0.80 – 3.86

≥3 lifetime sexual partners

1.58

0.72 – 3.46

Plants for vaginal care

2.70

1.04 – 7.01**

  1. LSIL+: cytology findings compatible with (pre)cancerous lesions (includes low- and high-grade squamous intraepithelial lesions and carcinoma)
  2. OR odds ratio; 95 % CI 95 % confidence interval of the odds ratio
  3. GEE: generalized estimating equations (population-averaged model; group variable: study group)
  4. aAge was treated as a continuous variable
  5. § Odds ratio could not be calculated because there were cells without observations
  6. **P-value of Wald test < 0.05