Chunk #3 — Introduction

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Childhood aggression and the co-occurrence of behavioural and emotional problems: results across ages 3-16 years from multiple raters in six cohorts in the EU-ACTION project.

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yes

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Table 1Sample sizes for different age groups of the ACTION cohortRegisterAgeWebpages1–23–45–67–89–1011–1213–1415–1617–1819–2021–22NTR106.737.931.223.218.115.18.05.71.76.0 http://www.Tweelingenregister.org Qtwin2.41.41.80.9 http://www.qimrberghofer.edu.au/qtwin/ TEDS12.628.429.26.811.86.710.2 http://www.Teds.ac.uk TCHAD2.02.02.02.0 http://ki.se/en/meb/twin-study-of-child-and-adolescent-development-tchad CATSS22.36.511.18.7 http://ki.se/en/meb/the-child-and-adolescent-twin-study-in-sweden-catss FT125.34.74.21.3 https://wiki.helsinki.fi/display/twineng/Twinstudy GenR4.55.27.85.0 http://www.generationr.nl Indiv (x 1000)123.871.53954.440.44522.824.78.182.2