## Continuous variable → mean [General Statistics]

Hi Martin,

» Would you also use mean (SD), rather than median (min, max), for the descriptive stats then, given that this then becomes a continuous variable?

Yes. The jury is out for years trying to figure out whether the distribution is normal (use \(\small{\bar{x},\,s_x}\)) or lognormal (use \(\small{\bar{x}_\textrm{geo},\,CV_\textrm{geo}}\)). See this thread for the Half-Value-Duration

Answering an unasked question: For discrete variables (

» Would you also use mean (SD), rather than median (min, max), for the descriptive stats then, given that this then becomes a continuous variable?

Yes. The jury is out for years trying to figure out whether the distribution is normal (use \(\small{\bar{x},\,s_x}\)) or lognormal (use \(\small{\bar{x}_\textrm{geo},\,CV_\textrm{geo}}\)). See this thread for the Half-Value-Duration

*HVD*(aka Peak-Occupancy Time 50) and the Plateau-time*t*_{75%}(aka Peak-Occupancy Time 25). Like in you case both are also continuous in the time-domain.Answering an unasked question: For discrete variables (

*e.g.*,*t*_{max}) I would give the median / IQR – not the range. The latter is not informative.—

Helmut Schütz

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*Dif-tor heh smusma*🖖_{}Helmut Schütz

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### Complete thread:

- Defining time to concentration threshold Cytokrom C 2022-04-29 16:24 [General Statistics]
- Defining time to concentration threshold ElMaestro 2022-04-29 17:49
- I prefer interpolation Helmut 2022-04-29 19:03
- I prefer interpolation Cytokrom C 2022-05-01 22:44
- Continuous variable → meanHelmut 2022-05-02 00:05

- I prefer interpolation Cytokrom C 2022-05-01 22:44