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Table 4 Potential significant predictors related to breast cancer

From: Determinants of breast cancer in Saudi women from Makkah region: a case-control study (breast cancer risk factors among Saudi women)

Independent variableβOR95% CIP-value
Body Mass Index (BMI) (continuous)0.11.111.07–1.14< 0.001
BMI categories
 UnderweightNDNDNDND
 Normal01  
 Overweight0.411.50.77–2.930.234
 Obese1.3942.07–7.74< 0.001
Employment
 Yes01  
 No1.896.563.83–11.37< 0.001
Family income
 < 5000 SRa3.6939.8811.11–143.16< 0.001
 5000–10000 SR2.077.882.45–25.40.001
 10000–20000 SR1.363.891.09–13.880.036
 > 20000 SR01  
Education
 Illiterate2.9819.74.33–89.54< 0.001
 Primary4.0758.5616.91–202.82< 0.001
 Intermediate-secondary1.715.522.75–11.09< 0.001
 Postsecondary01  
Family size
 5 or less01  
 6 or more0.82.231.15–4.30.017
Regularly exercise
 Yes01  
 No0.722.061.16–3.670.014
Cancer awareness
 Yes01  
 No1.876.471.84–22.770.004
Smoking
 Yes1.856.361.56–260.01
 No01  
Diabetes
 Yes0.51.650.81–3.350.165
 No01  
Hypertension
 Yes0.511.670.91–3.040.097
 No01  
Contraceptive use
 Hormonal1.916.783.42–13.44< 0.001
 None-hormonal1.233.431.54–7.650.003
 Don’t use01  
Age of started menstruation
 < 10 years old1.6151.12–22.290.035
 11–14 years old01  
 > 15 years old0.541.570.79–3.130.197
  1. All variables were adjusted for potential confounders
  2. Abbreviations; β Beta coefficient, CI Confidence Interval, ND Not Determined, OR Odds Ratio
  3. aSR Saudi Riyal