Area under curve using trapezoid method

A short video for Kathleen describing the trapezoid method for computing AUC

[@labbooking5481]

Thanks Tom, this was extremely helpful. Easy to follow and not made overly complicated.

[@mistsis6529]

U save my life! Thank you!

[@theedge-nutritionhabitsofa8616]

Thanks Tom - very well explained and very helpful.

[@yvonnemadegwa967]

Thank you very much, i needed exactly that for my research

[@OMAR40977]

Thanks alot. I needed that and found it helpful.

[@kosaisharfi1671]

Thank you very much
God bless you !!💖💗💙💚💛💜
😊😊😊😊😊😊😊😊😊😊😊😊

[@AbdulRehmanAbdulAziz]

Very good explanation

[@ellaedralin2169]

Thank you! 😊

[@laughtherapey]

Very simple thank you

[@pharmaboy1510]

Thanks

[@Pakistani_Palestinian]

thank u so much, now i understand it completely 😊😊😊😊

[@swatimitharwal4420]

thank you so much Tom . It really helped.

[@chikaokolo4929]

Thank you

[@AbdulRehmanAbdulAziz]

Can anyone know how to calculate IAUC

[@jcobmatinya9077]

i want to ask if time interval is different will that method be applicapable???

[@TomFaulkenberry]

of course...note that at around 3:20 in the video, I mentioned that one should multiply by the width of the trapezoid (which was 1 time unit in my example). If your time interval was, say 2 hours, you would then multiply by the width of that time interval (2 hours). I hope this helps!

[@rawdabrown2394]

@@TomFaulkenberry can I ask why you kept multiplying by 1 throughout despite the other time intervals being 2 and 3 ? In your excel , you dragged the results instead of multiplying those blood levels by their respective times ? Please reply

[@TomFaulkenberry]

@@rawdabrown2394 sure! The time *points* were 2 hours and 3 hours, respectively, but the *intervals* between them were still equal to 1 hour for each. It is the width of the interval that matters...not the value of either endpoint. I hope this helps!

[@rawdabrown2394]

@@TomFaulkenberry thank you very much. Much more clear now. After calculating the area under the curve , how would the values obtained be plotted on a graph ? Are they plotted on the same graph as e.g on glucose response graphs ? I am trying to understand what’s the significance of AUC in such cases and how they are best plotted.