Stephan Kirchner

[Stephan Kirchner @Stephan_Ki]

@Retlouping Chapeau 🎩!

[Stephan Kirchner @Stephan_Ki]

@Retlouping The meme is very wisely chosen. Grok correctly defines sensitivity, but is inconsistent in evaluating your definition and remains vague. How about this for the future: the ability of a test to detect the condition in confirmed cases.

[Stephan Kirchner @Stephan_Ki]

@Retlouping Unfortunately, a simplification of the definition of sensitivity has become widespread that is incorrect and is being copied without verification.

[Stephan Kirchner @Stephan_Ki]

@Retlouping Sensitivity is merely the positive rate among those affected. And without knowledge of the positive rate among those not affected, it is meaningless in terms of detecting conditions.

[Stephan Kirchner @Stephan_Ki]

@Retlouping Thank you for your prompt response. And of course, illness and condition are not identical. But that is not the point. My concern is that it is not permissible to say that sensitivity is a measure for detecting an illness or a condition.

[Stephan Kirchner @Stephan_Ki]

@Retlouping There is a subtle difference between the two. It is a nuance that must be taken into account. The same applies to specificity.

[Stephan Kirchner @Stephan_Ki]

@Retlouping Thank you for your reply and the references. Perhaps I should be more specific: you write that sensitivity is the test's ability to detect the condition. That is incorrect. Sensitivity, to use the same terminology, is the test's ability to be positive in patients who are ill.

[Stephan Kirchner @Stephan_Ki]

@Retlouping An elaborate review, which unfortunately was not carried out with the utmost methodological rigour. I miss the use of GRADE approach and prediction intervals. The results should be interpreted with great caution.

[Stephan Kirchner @Stephan_Ki]

@janboehm Das Spiegelzelt Weimar lädt ein...

[Translationsregion für digit. Gesundheitsversorg. @inno_tdg]

Das TDG-Projekt 𝗩𝗜𝗡 steht für 𝗩𝗶𝗿𝘁𝘂𝗲𝗹𝗹 𝗜𝗻𝘃𝗲𝗿𝘁𝗶𝗲𝗿𝘁𝗲 𝗡𝗲𝘂𝗿𝗼𝘁𝗵𝗲𝗿𝗮𝗽𝗶𝗲. Es will vor allem Menschen mit chronischen Schmerzen im häuslichen Umfeld helfen. Im TDG-Trendreport erklären Dr. Susanne Saal & Stephan Kirchner mehr 👉 https://t.co/dtbkfDagcf

[Stephan Kirchner @Stephan_Ki]

@Retlouping For SP analog... I would like to underline the use of LHR as requested by you. There is hardly a more robust parameter for test interpretation. Many greetings

[Stephan Kirchner @Stephan_Ki]

@Retlouping Hello David.I adore your tweets extraordinarily,but I have to disagree a bit with your definitions. SN is not the ability of a test to determine the target condition. Rather, it is the + proportion among all sufferers->the probability to show + result as a person with the disease

[Stephan Kirchner @Stephan_Ki]

@TheHipPhysio Do you think the patellar pubic percussion test could be useful in this context?