Table 3 Birth weight and risk for malignant melanoma: adjustment for multiconfounding effect of gender, place of birth and parental age at the time of birth, using multivariate logistic model

From: Birth weight and melanoma risk: a population-based case–control study

Variable

OR

95% CI

P -value*

Birth weight (grams)

 <2500

0.81

0.52–1.26

0.352

2500

1.0

  

Gender

 Female

2.38

2.02–2.80

<0.001

 Male

1.0

  

Place of birth

 South Norway

1.27

1.06–1.53

0.010

 North Norway

1.0

  

Mother's age

 Continuous

0.99

0.96–1.01

0.236

Father's age

 Continuous

1.01

0.99–1.03

0.382

  1. CI=confidence interval; OR=odds ratio.
  2. *All P-values are two sided.