Presenting a comparison

[Nico12]

Hello,

I'm currently writing my master thesis about Cost-benefit analysis between two types of catheters that are medically used. One aspect that I would like to implement is to compare the rate of dislocation in each catheter for 50 patients. However I don't know how to best present the results of my comparison.

Including some statistics and number in my thesis is my dream but I have absolutely no idea what can I include. Is there a statistical guide (book, website,etc..) that would you recommend. 

Thanks in advance.