Hi,

you can use webplot dizitalizer and view the data from graphs and then calculate mean SD from excel sheet using formula.

Hello sear Mukesh Kumar Soothar,

First of all, you should make sure that the information you need (mean and standard deviation) is reported in the graph with the type you want. Many clinical articles report CI instead of SD with the mean in the graphs. You have to read the graph's information to be sure.

If the SD was reported in the graph, you can see it as a bar above and below the mean value. Take a picture of that part of the article, then enter the digitizer software or website. There, specify the exact parts of the graph and determine the values.