aguywithuc said...
Nonsense, flew 2000 hours hauling freight and filght training for students.
I now live outside the mile high city which supports this idea but when I go into the mountains and double that I get perfect poop.
Smoking does not increase oxygen intake either.
This is defective thinking. The data is the data. It may not replicate, but you are hardly qualified to declare "nonsense".
Just because lots of time flying did not cause you flares, does not mean there is not a statistically valid association. When people think that for a thing to be true it must be 100% equally true in 100% of individuals, or it is false - well that is just plain bad thinking.
A thing can be true on average. A thing can be true to some degree in some percentage of people. If this degree and percentage is higher than chance, then it it called significant, and given further study to learn more.
in these data it said...
Mild hypoxic stress was defined as aircraft travel and/or journeys to regions lying at an altitude of > 2000 m above the sea level. Details regarding the occurrence of mild hypoxic stress in the two groups during the observation period between September 1st, 2010 and August 31st, 2011 are presented in Table 4. Twenty one patients in the group experiencing flare-up episodes (n = 52) traveled by aircraft and/or journeyed to regions lying at an altitude of > 2000 m above the sea level within 4 weeks of occurrence of the flare-up when compared to 8 patients in the IBD group that were in clinical remission (40.4% vs. 15.7%, p = 0.005). These findings are illustrated in (Fig. 1). When a comparison between subgroups of IBD patients was made, 8/21 CD patients who experienced flare-up episode(s) had travelled by airplane or to high altitude regions when compared to 2/22 CD patients in clinical remission (38.1% vs. 9.1%, p = 0.024). In UC patients experiencing flare-up episodes, a trend for more frequent aircraft travel and journeys to higher regions was observed (13/31 vs. 6/29, p = 0.077)"
... so only 13 of 31 UC patients had a flare w/i 4 weeks. By your logic, since all 31 did not have a flare then it is "nonsense" and false. ... after all, 18 UC patients did not have a flare, so it is "nonsense"
Don't think like that. It is a waste.
Further, the authors are aware of issues (they are qualified scientists after all) and are planning further work
the authors said...
... while the results of this study suggest an association between aircraft travel/stays at regions lying at an altitude of > 2000 m above the sea level and IBD flare-up episodes, additional confounding factors, such as travel-related stress or exposure to different microbes in food, could have also contributed to observations made in the study. To address these limitations, we are currently planning a larger study using a decompression chamber ...
so the bottom line is finding out associations and investigating them, good. not even reading the article (or demonstrating an understanding of statistics), and declaring "nonsense", not so good.
Post Edited (DBwithUC) : 9/18/2013 11:35:37 AM (GMT-6)