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by dmwood 603 days ago
"Updated fraction of cancer attributable to lifestyle and environmental factors in Denmark in 2018", Scientific Reports | (2022) 12:549 https://doi.org/10.1038/s41598-021-04564-2 attempts to tease out causes: 38% tobacco, alcohol 7%, obesity 9%, occupational 6%, air pollution 3%, infections (like HPV) 7%.
1 comments

Therefore 70%.