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Table 3 Independent predictors of ovarian cancer incidence rate based on multiple linear regression modelling (Enter)

From: Low fertility may be a significant determinant of ovarian cancer worldwide: an ecological analysis of cross- sectional data from 182 countries

Variable β Std. Error Sig. β Std. Error Sig.
Fertility −0.694 0.111 < 0.001
Ageing −0.037 0.341 0.752 −0.207 0.309 0.052
GDP 0.471 0.055 < 0.001 0.163 0.052 0.174
Ibs 0.250 0.658 0.032 0.100 0.589 0.342
Overweight −0.056 0.069 0.496 − 0.020 0.060 0.778
Urbanization −0.122 0.105 0.211 −0.125 0.092 0.146
  1. The table describes the multiple linear regression analysis (Enter) results including and excluding fertility as a predictor of breast cancer. df = 164; − excluded variable
  2. Ovarian cancer (OC56) incidence rate is from the International Agency for Research on Cancer. Fertility indexed by birth rate, GDP PPP and urbanization are from the World Bank. Ageing expressed as life expectancy (e65) is from the United Nations. Obesity prevalence is from the World Health Organization
  3. Biological State Index (Ibs) was downloaded from previous publications, which were calculated with the data of the world fertility form the UN Population Council and the WHO life tables