Talk:Cross-sectional study

message: I am an economist, and I searched for cross section in order to be sure about the usage of the term in English (my native language is Spanish). However, I was surprised when I read this article, since it does not say anything about what field does it refer to. It seems like it refers to studies in medicine, am I right? I think it should be better specified, since the term cross section is also widely used in statistics and econometrics, with a meaning that is very similar to what this article refers to. It should maybe be merged with the article "cross-sectional data", since they refer pretty much to the same kind of study, but on a different context.  — Preceding unsigned comment added by 190.156.105.135 (talk) 19:47, 18 June 2013 (UTC)

message: I am just a little unclear as to why the Wikipedia definition is only relating to epidemiology. Cross-sectionals are done in mostly the social sciences and are not specific to any one field. —The preceding unsigned comment was added by 65.27.177.29 (talk) 00:53, 16 April 2007 (UTC)
replies: text:  Social sciences may have more papers being published but it still doesn't discount the fact that cross-sectionals are an integral part of epidemiology, and one of the most common types of epidemiological studies. Either this article can be sectioned off into the two disciplines to show differences/examples, or are you suggesting we make two articles if the differences are large enough to warrant it? --Waqqashanafi (talk) 10:08, 27 May 2016 (UTC)
replies: text:  They're certainly a common study type in medicine, maybe the most common. JuanTamad (talk) 11:24, 27 May 2016 (UTC)
thread_title:  Definition 

message: The article currently says: "Unlike case-control studies, they can be used to describe absolute risks and not only relative risks." This implies to me that case-control studies can be used to describe relative risk, but I believe this is false (they can find odds ratios, and cohort studies can find relative risks). Either I'm factually wrong or I'm the only one confused by the wording, or I believe this sentence needs to be re-worded. I'm just not sure enough to make the edit myself.
69.116.211.248 (talk) 00:45, 2 September 2010 (UTC)
replies: text: You are absolutely correct, and I juts made the correction (while also adding two references to the use of RR with cross sectional studies).  Thanks for writing.  Tal Galili (talk) 19:21, 15 February 2012 (UTC)
thread_title:  Comparison to case-control studies 

message: I think the  sentence that states that "cross-sectional studies are descriptive" is not quite true because they are sometimes described as analytical as defined here: (http://cebm.net/study-designs/ ), where it also states that descriptive studies "sometimes include analytic work" and here ((http://www.nature.com/ebd/journal/v7/n1/full/6400375a.html) where they're called descriptive but include analysis. Google “observational study design inforgraphs” and you’ll see different classification trees. Cross-sectional studies include surveys, which are usually purely descriptive it seems. So, although sometimes classified as a descriptive study, they may have analytical features and then might be classified or described as an analytical cross-sectional study. So definitions vary and the terms are used differently. If there's quantification of risk (hypothesis testing) then seems to me  analytical is a better term. And, another thing, sometimes cross-sectional studies (analytical ones) are confused with case-control studies because they have cases and controls. If there's a description of cases and controls, but statistics are only comparisons then maybe that should be considered descriptive. In the STROBE statement, descriptive data in observational studies should not include inferential statistical tests (P values, confidence intervals, standard errors) according to the STROBE guideline.  This applies in medicine and epidemiology. ~ juanTamad (talk) 10:50, 21 September 2015 (UTC)
thread_title: Cross-sectional studies  descriptive or analytical or both?

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ExpertIdeasBot (talk) 11:06, 28 May 2016 (UTC)
replies: text: This is not correct. Regression is a very general statistical tool for estimating relationships between one or more independent variables and an outcome and can be used for causal inference or pure description of associations (differences/trends). The study design and lots of other considerations and assumptions determine whether those distinct interpretations are valid/robust or not, but regression is absolutely not "just" for "causative assessments". And avoid the Table 2 fallacy (https://academic.oup.com/aje/article/177/4/292/147738)! 79.76.63.170 (talk) 10:58, 28 November 2023 (UTC)
thread_title:  Dr. Mohamed's comment on this article 

message: Dr. Bai has reviewed this Wikipedia page, and provided us with the following comments to improve its quality:
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*Reference : Ando, Tomohiro & Bai, Jushan, 2014. "A simple new test for slope homogeneity in panel data models with interactive effects," MPRA Paper 60795, University Library of Munich, Germany.
ExpertIdeasBot (talk) 11:14, 28 May 2016 (UTC)
thread_title:  Dr. Bai's comment on this article 

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thread_title:  External links modified 

message: This is a very low quality article that is littered with factual mistakes and misunderstandings. The almost total lack of references highlights the fact that this has just been written with little consideration for facts. Sorry I am not a wikipedia editor but hopefully this comment at least highlights the fact that people should ignore this article completely and instead seek out a decent epidemiology textbook or well respected paper/webpage. 79.76.63.170 (talk) 11:42, 28 November 2023 (UTC)
thread_title:  Overall article quality