andrew_gelman_stats andrew_gelman_stats-2014 andrew_gelman_stats-2014-2367 knowledge-graph by maker-knowledge-mining
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Introduction: Antonio Rinaldi points me to a press release describing a recent paper by Amneet Sandhu, Milan Seth, and Hitinder Gurm, where I got the above graphs (sorry about the resolution, that’s the best I could do). Here’s the press release: Data from the largest study of its kind in the U.S. reveal a 25 percent jump in the number of heart attacks occurring the Monday after we “spring forward” compared to other Mondays during the year – a trend that remained even after accounting for seasonal variations in these events. But the study showed the opposite effect is also true. Researchers found a 21 percent drop in the number of heart attacks on the Tuesday after returning to standard time in the fall when we gain an hour back. Rinaldi thinks: “On Tuesday? No multiple comparisons here???” The press release continues: “What’s interesting is that the total number of heart attacks didn’t change the week after daylight saving time,” said Amneet Sandhu, M.D., cardiology fellow, Univer
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1 Antonio Rinaldi points me to a press release describing a recent paper by Amneet Sandhu, Milan Seth, and Hitinder Gurm, where I got the above graphs (sorry about the resolution, that’s the best I could do). [sent-1, score-0.257]
2 Here’s the press release: Data from the largest study of its kind in the U. [sent-2, score-0.191]
3 reveal a 25 percent jump in the number of heart attacks occurring the Monday after we “spring forward” compared to other Mondays during the year – a trend that remained even after accounting for seasonal variations in these events. [sent-4, score-0.979]
4 But the study showed the opposite effect is also true. [sent-5, score-0.067]
5 Researchers found a 21 percent drop in the number of heart attacks on the Tuesday after returning to standard time in the fall when we gain an hour back. [sent-6, score-1.115]
6 ” The press release continues: “What’s interesting is that the total number of heart attacks didn’t change the week after daylight saving time,” said Amneet Sandhu, M. [sent-11, score-1.455]
7 , cardiology fellow, University of Colorado in Denver, and lead investigator of the study. [sent-13, score-0.068]
8 “But these events were much more frequent the Monday after the spring time change and then tapered off over the other days of the week. [sent-14, score-0.665]
9 It may mean that people who are already vulnerable to heart disease may be at greater risk right after sudden time changes. [sent-15, score-0.583]
10 We know from previous studies that a lack of sleep can trigger heart attacks, but we don’t have a good understanding of why people are so sensitive to changes in sleep-wake cycles. [sent-19, score-0.612]
11 Our study suggests that sudden, even small changes in sleep could have detrimental effects,” he said. [sent-20, score-0.421]
12 Rinaldi also found this news article: The researchers found no difference in the total weekly number of PCIs performed in 2010 to 2012 during the spring time changes (week before, 661; week after, 654; P=. [sent-21, score-1.055]
13 87) and fall time changes (week before, 610; week after, 652; P=. [sent-22, score-0.565]
14 However, the RR for MI was higher on the Monday after the spring time change compared with other Mondays (RR=1. [sent-24, score-0.574]
15 46) and lower on the Tuesday after the fall time change compared with other Tuesdays (RR=0. [sent-27, score-0.449]
16 As with the story about extra births on Valentine’s day and fewer on Halloween, I think the right way to go is to do an analysis of all the days of the year rather than picking just one or two weeks Analyzing all 365 days is more work, but hard work is what research is all about. [sent-31, score-0.354]
17 I agree with Rinaldi that “the Tuesday after returning to standard time” is a funny comparison to pick out. [sent-32, score-0.125]
18 It could make sense but, if so, I think it would show up in other weeks, not just after daylight savings. [sent-33, score-0.161]
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Introduction: Antonio Rinaldi points me to a press release describing a recent paper by Amneet Sandhu, Milan Seth, and Hitinder Gurm, where I got the above graphs (sorry about the resolution, that’s the best I could do). Here’s the press release: Data from the largest study of its kind in the U.S. reveal a 25 percent jump in the number of heart attacks occurring the Monday after we “spring forward” compared to other Mondays during the year – a trend that remained even after accounting for seasonal variations in these events. But the study showed the opposite effect is also true. Researchers found a 21 percent drop in the number of heart attacks on the Tuesday after returning to standard time in the fall when we gain an hour back. Rinaldi thinks: “On Tuesday? No multiple comparisons here???” The press release continues: “What’s interesting is that the total number of heart attacks didn’t change the week after daylight saving time,” said Amneet Sandhu, M.D., cardiology fellow, Univer
Introduction: I read this front-page New York Times article and was immediately suspicious. Here’s the story (from reporter Gina Kolata): Could exercise actually be bad for some healthy people? A well-known group of researchers, including one who helped write the scientific paper justifying national guidelines that promote exercise for all, say the answer may be a qualified yes. By analyzing data from six rigorous exercise studies involving 1,687 people, the group found that about 10 percent actually got worse on at least one of the measures related to heart disease: blood pressure and levels of insulin, HDL cholesterol or triglycerides. About 7 percent got worse on at least two measures. And the researchers say they do not know why. “It is bizarre,” said Claude Bouchard, lead author of the paper , published on Wednesday in the journal PLoS One . . . Dr. Michael Lauer, director of the Division of Cardiovascular Sciences at the National Heart, Lung, and Blood Institute, the lead federal
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Introduction: Just in time for the holiday, X pointed me to an article by Becca Levy, Pil Chung, and Martin Slade reporting that, during a recent eleven-year period, more babies were born on Valentine’s Day and fewer on Halloween compared to neighboring days: What I’d really like to see is a graph with all 366 days of the year. It would be easy enough to make. That way we could put the Valentine’s and Halloween data in the context of other possible patterns. While they’re at it, they could also graph births by day of the week and show Thanksgiving, Easter, and other holidays that don’t have fixed dates. It’s so frustrating when people only show part of the story. The data are publicly available, so maybe someone could make those graphs? If the Valentine’s/Halloween data are worth publishing, I think more comprehensive graphs should be publishable as well. I’d post them here, that’s for sure.
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Introduction: A post-WTC time capsule .
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Introduction: Antonio Rinaldi points me to a press release describing a recent paper by Amneet Sandhu, Milan Seth, and Hitinder Gurm, where I got the above graphs (sorry about the resolution, that’s the best I could do). Here’s the press release: Data from the largest study of its kind in the U.S. reveal a 25 percent jump in the number of heart attacks occurring the Monday after we “spring forward” compared to other Mondays during the year – a trend that remained even after accounting for seasonal variations in these events. But the study showed the opposite effect is also true. Researchers found a 21 percent drop in the number of heart attacks on the Tuesday after returning to standard time in the fall when we gain an hour back. Rinaldi thinks: “On Tuesday? No multiple comparisons here???” The press release continues: “What’s interesting is that the total number of heart attacks didn’t change the week after daylight saving time,” said Amneet Sandhu, M.D., cardiology fellow, Univer
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Introduction: Antonio Rinaldi points me to a press release describing a recent paper by Amneet Sandhu, Milan Seth, and Hitinder Gurm, where I got the above graphs (sorry about the resolution, that’s the best I could do). Here’s the press release: Data from the largest study of its kind in the U.S. reveal a 25 percent jump in the number of heart attacks occurring the Monday after we “spring forward” compared to other Mondays during the year – a trend that remained even after accounting for seasonal variations in these events. But the study showed the opposite effect is also true. Researchers found a 21 percent drop in the number of heart attacks on the Tuesday after returning to standard time in the fall when we gain an hour back. Rinaldi thinks: “On Tuesday? No multiple comparisons here???” The press release continues: “What’s interesting is that the total number of heart attacks didn’t change the week after daylight saving time,” said Amneet Sandhu, M.D., cardiology fellow, Univer
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Introduction: I don’t exactly disagree with the two arguments that I reproduce below, but I think they miss the point. Is “the battle over elitism” really central to this election? First, the easy one. Peter Baker in the New York Times, under the heading, “Elitism: The Charge That Obama Can’t Shake”: For all the discussion of health care and spending and jobs, at the core of the nation’s debate this fall has been the battle of elitism. . . . Ron Bonjean, a Republican strategist, said Mr. Obama had not connected with popular discontent. “A lot of people have never been to Washington or New York, and they feel people there are so out of touch,” he said. . . . Rather than entertaining the possibility that the program they have pursued is genuinely and even legitimately unpopular, the White House and its allies have concluded that their political troubles amount to mainly a message and image problem. I think this is misleading for the usual reason that these message-oriented critiques are
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