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Table 1 Socioeconomic characteristics (defined at the block group level) of dioxin exposure zones (Kruskall – Wallis tests) [17]

From: Dioxin emissions from a municipal solid waste incinerator and risk of invasive breast cancer: a population-based case-control study with GIS-derived exposure

  Very low Low Intermediate High p-value
Persons with a high school diploma (%) 33.9 30.2 26.6 28.4 0.21
Women in labor force (%) 46.8 49.3 47.6 54.8 0.23
Workers in labor force (%) 16.6 24.1 26.5 23.2 0.08
Unemployed in labor force (%) 12.8 14.8 15.1 12.8 0.84
Single woman as head of household (%) 6.8 7.7 10.6 9.3 0.15
Owner-occupied houses (%) 34.8 32.1 29.1 36.1 0.88
Number of persons per dwelling (mean) 2.25 1.94 2.21 2.25 0.34
Single-family houses (%) 35.1 13.8 12.1 30.4 0.17