Thomas Callender and colleagues present a development and validation study using parsimonious ensemble machine learning models to assess eligibility for lung cancer screening.
In this Perspective, Bo Xi and Costan Magnussen discuss the trends in smoking prevalence in China reported by Mei Zhang and colleagues, and the need for effective tobacco control strategies.
Mei Zhang, Ling Yang, Limin Wang, and colleagues report on trends in smoking prevalence in China based on nationally representative data from the China Chronic Disease and Risk Factor Surveillance surveys between 2007-2018.
in our health lead, new evidence that the times as well as people s smoking habits are changing. a new study funded by the national institutes of health shows the use of marijuana and hallucinogens between young people between 19 and 30 are at all-time highs. this comes as for the first time ever, more people say they used weed than tobacco cigarettes. harry enten who usually keeps his eye on politics has been inhaling some different kinds of numbers today. what did you find? oh, my god. if i can get through this segment without laughing it would be a miracle. have you smoked or ever tried marijuana? 16% of americans say yes. that is an all-time high. you know, we also have this ever tried marijuana part of the screen.
electronic cigarettes are widely seen as a safer alternative, although most do contain nicotine, which is addictive. the pandemic has also affected smoking habits. there have been higher rates of quitting but also higher rates of relapse, and signs of an increase in smoking among younger people. if you want to quit smoking, for your family or for your health, you are not alone. campaigners point out it s a new year s resolution that will also bring huge benefits to others. tim muffett, bbc news. in cricket, australia has successfully retained the ashes, winning the third test against england in melbourne. in what was a dominating performance, australia s fast bowlers ripped through england s batting order to win by an innings and 1a runs. the victory means australia has an insurmountable 3 0 lead in the best of five test series, retaining the ashes once again.