Good grief! Logistic regression! Back when I was studying such things and saw that it looked fishy and I tried to forget it and was fairly successful! For ju

Good grief! Logistic regression! Back when I was studying such things and saw that it looked fishy and I tried to forget it and was fairly successful! For just regression, there are some supporting arguments, even with minimal assumptions. For logistic regression? Apparently they controlled on lots of variables -- commonly that is fishy and tends to need a lot, too much, data. For data they had (5,105 cases and 6,535 controls) Good grief! From the NIH reference you gave, "... Globally, lung cancer is estimated to account for almost 1.4 million incident cases of cancer each year and has been the most common cancer in the world for more than two decades (Parkin et al. 2005). " Good grief. All of this is only because I typed in "Smoke from a wood fire? Ah, smells like home at Thanksgiving or Christmas!" It still does! Hmm, maybe there will be a movement to outlaw new fireplaces and to brick up old ones! Uh, at the beginning of https://www.youtube.com/watch?v=K6bRBQL_j6o https://www.youtube.com/watch?v=K6bRBQL_j6o of a guy posting video clips of his work on building post frame building, there is a picture of his huge living room with his little wood burning furnace and its tall smokestack rising to the outside. Such furnaces tend to try to be nearly air tight, but likely there will be enough smoke in the house to smell like Thanksgiving or Christmas! Then the main smoke does go outside -- hmm, maybe all of Iowa will be afraid???