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| ===2009: [https://gwern.net/doc/iq/2010-wennerstad.pdf Associations between IQ and cigarette smoking among Swedish male twins]=== | | ===2009: [https://gwern.net/doc/iq/2010-wennerstad.pdf Associations between IQ and cigarette smoking among Swedish male twins]=== |
| *“The [inverse] IQ–smoking association disappeared after adjustments for shared environment and genetics.” | | *“The [inverse] IQ–smoking association disappeared after adjustments for shared environment and genetics.” |
| | *Citation: Wennerstad, K. M., Silventoinen, K., Tynelius, P., Bergman, L., Kaprio, J., & Rasmussen, F. (2010). Associations between IQ and cigarette smoking among Swedish male twins. Social science & medicine (1982), 70(4), 575–581. https://doi.org/10.1016/j.socscimed.2009.10.050 |
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