| 17 The analyses in the pooled global and regional sample included fixed effects for countries, achieved by including an indicator variable for each country | All analyses were repeated separately for men and women |
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| In the same way, an average log BAF of in invertebrate species and an average log BAF of in vertebrate species can be calculated from other studies Oliver et al hevreuil et al artley et al aquet et al | 16 All analyses were adjusted for age and sex; at the global level, they were based on The World Bank income classification of countries and The World Bank geographical regions |