Timeline for How to test several predictors' effect when you use means and standard deviations (or SE) from published papers?
Current License: CC BY-SA 4.0
15 events
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| May 1, 2020 at 14:58 | comment | added | Ben | Have you tried writing to the authors to see if you can get the full data of interest? | |
| May 1, 2020 at 14:20 | vote | accept | Dekike | ||
| May 1, 2020 at 14:05 | answer | added | Wolfgang | timeline score: 0 | |
| Apr 30, 2020 at 8:51 | comment | added | Dekike | @Wolfgang Yes!! I forgot it. But it is unbalanced. The older, the lower the size. But the size in any case is quite large (more than 1000 in the worst case for each age-smoking group). | |
| Apr 30, 2020 at 7:21 | comment | added | Wolfgang | Another question: Do you also have a sample size for each measurement of the concentration? | |
| Apr 29, 2020 at 17:18 | comment | added | Dekike | It might be, however, since I am new on that, I didn't know if someone could shed light on that saying specifically which method should be the best. Thanks for your time! | |
| Apr 29, 2020 at 17:01 | comment | added | user234562 | Isn't meta-analysis one approach to addressing your question? A search on CV for meta-analysis produced over 1,000 hits. | |
| Apr 29, 2020 at 16:41 | history | edited | Dekike | CC BY-SA 4.0 |
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| Apr 28, 2020 at 21:39 | comment | added | Dekike | @Wolfgang, Did you think something? | |
| Apr 27, 2020 at 11:38 | comment | added | Dekike |
Thanks for your time @Wolfgang. Regarding your first question, I have one single mean per combination of levels. That is, for instance, for non-smokers being 15 years old one mean value, for non-smokers being 25 years old, another mean value, etc. All data comes maybe from 6/7 papers, so, in some of them, I have several means. Regarding if the studies are cross-sectional, yes, they are not longitudinal. They take different people for each group. And regarding overlapping within the smoking variable, no, they are different subjects for smokers and non-smokers.
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| Apr 27, 2020 at 9:18 | comment | added | Wolfgang | Do you have a single mean from each paper? Or do papers report multiple means? In the latter case, are these cross-sectional studies, such that the 15 year old subjects are not the same people as the 25 year old subjects or are these longitudinal studies such that the same group of people was measured when they were 15 and when they were 25? (I assume that there is no overlap between smokers and non-smokers or can the same subject also appear in both of these groups?) | |
| Apr 25, 2020 at 15:14 | history | edited | Dekike | CC BY-SA 4.0 |
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| Apr 25, 2020 at 14:28 | history | edited | Dekike | CC BY-SA 4.0 |
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| Apr 25, 2020 at 8:28 | history | edited | Dekike | CC BY-SA 4.0 |
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| Apr 24, 2020 at 20:53 | history | asked | Dekike | CC BY-SA 4.0 |