The RevMan Caculator: Calculating missing standard deviations

[@drurs]

It would be very helpful if we had the information for the articles so we could follow what you're doing.

[@jorgemmmmteixeira]

Hello. You are entering the raw values at Post intervention, right? But if we insert the changes of mean between pre-post.... in that case how do we calculate the SD of change in means? Can RevMan calculator also do that?

[@jorgemmmmteixeira]

I ask specially for those situation that we have the SD at baseline and Post. How do we calculate the SD of change with that information?

[@PraveenKumar-xq7xb]

Exactly I am looking for the same. Have you found the answer?

[@sjh3099]

@@jorgemmmmteixeira Exactly the question I am asking myself

[@jorgemmmmteixeira]

@@sjh3099 revman calculator can help. Or estimate it. Or authors also report it. Or you can contact them

[@HanHan-tz7mj]

Hi, i am confusing about the mean value and SD value that you add into the blanks. Normally, there are severl mean value and SD in a paper, so, which one should be considered and keyed into the blanks in RevMan when do a comparison. Thankyou.

[@HanHan-tz7mj]

Hi, i am confusing about the mean value and SD value that you add into the blanks. Normally, there are severl mean value and SD in a paper, so, which one should be considered and keyed into the blanks in RevMan when do a comparison. Thankyou.