I just want you to know how much I appreciate your videos on biostats. As an epidemiology instructor I love using your videos for supplemental instructional material. I wish you were my instructor in my day!
Absolutely fantastic explanation. You have a natural talent for teaching, not just delivery but the clear breaking down into relevant sub-concepts and anticipating questions. Bravo.
The concepts couldn't be explained more clearly! Odds and risk ratios have confused me greatly throughout medical school and this is the first time I've ever had an insight and intuition into the concepts. Thanks so much!
This is the clearest explanation of odds and risk ratio on the internet. The video is very clear on why odds ratio is used in case-control study. I hope I am not being picky, but I do wish the author would use "for" and "against" terms and two whole numbers in discussing odds ratio. Yes, the video is the best. I am being picky.
+Rahul Patwari (Rahul's EM) Using your heart attack numbers, there are 10 patients in the group. 6 patients had a heart attack and 4 did not. I think gamblers would say the odds "for" a heart attack are 6 to 4. Gamblers might state the same relationship as the odds "against" a heart attack are 4 to 6.
I'm not a gambler, but I believe there are number of ways gamblers express odds. I was just going for the way the statisticians do it, but your point is well taken. Thanks!
Thank you so much. There is a bunch of information on other courses butI couldn't find any playlist for epidemiology than yours.thanks for sharing it free🙏
This is absolutely amazing. The best explanation on OR and RR with relation to case-control and cohort studies. I guess cross-sectional studies would use OR as well and randomised controlled trials would use RR since they are an upgrade of the cohort study. Additionally, could you please explain how would we interpret the results of RR and OR? Using your example, would RR of 3 be interpreted as "those who take pills have 3 times more risk to develop MI than those who do not take pills" and would OR of 3 be interpreted as "those who take pills are 3 times more like to develop MI than those who do not take the pills"? Thank you for your videos.
I am also a MPH student overwhelmed over Epi module, this guy is soo good. His calm way of explaining it without rushing through it definitely helps as do the examples as they are all relevant
Awesome! Can not having mammograms and getting breast cancer be calculated with these scenarios? I really enjoyed the thoroughness and diagrams, which helped to clarify odds and risks.
Wow, you are different. Thank you for such a great video. One question. If you do a retrospective analysis but you look at the effect of exposure on the outcome. (in my case, the risk of cancer recurrence depending on the duration of chemotherapy) Would you still use risk or logistic regression or what?
Hi Rahul, thanks for your good explanation. It really helps me a lot. Just a quick question. As you mentioned at 15:40, if the number in confidence intervals is 1 which means it is not statistically significant, which means there is no different, is it same if it is more than 1, like the example you gave 11.2, it is more than one and not statistically significant, does it mean it has no different too? Thanks Rahul.
Very easy to understand. Thanks your nice presentation. We hope more videos with good examples.
It has been almost 10 yrs I came out of med school. But this concept is always a trouble maker for me. Thanks for the explanation.
I just want you to know how much I appreciate your videos on biostats. As an epidemiology instructor I love using your videos for supplemental instructional material. I wish you were my instructor in my day!
Excellent..Your calm voice added with a pint of humor and fantastic clarity made it easy to understand..Thank you so much
I appreciate how clearly you lay out your teaching. I love the use of your pictures. Very very helpful for a newbie! Thank you
Great explanation, pitch perfect, thanks so much for the details it makes these odd concepts palatable.
Keep up the good work!
This is the best course I have ever had regarding the main difference between OR RR.
Really I appreciate it a lot.
Many thanks+++
Absolutely fantastic explanation. You have a natural talent for teaching, not just delivery but the clear breaking down into relevant sub-concepts and anticipating questions. Bravo.
The concepts couldn't be explained more clearly! Odds and risk ratios have confused me greatly throughout medical school and this is the first time I've ever had an insight and intuition into the concepts. Thanks so much!
The perfect video answering all the questions I had from other videos. Thank you!
This is the clearest explanation I've come across on explaining Odds vs Risks
Well done sir, and thank you!
Absolutely outstanding! I loved how you used drawing to explain and compare the formulas.
Finally I understood the differences between RR and OR! Thank you so much! Easily and simply
This is absolutely amazing. Happy I found your channel. Hope you continue to make more videos. Thank you.
This is the clearest explanation of odds and risk ratio on the internet. The video is very clear on why odds ratio is used in case-control study. I hope I am not being picky, but I do wish the author would use "for" and "against" terms and two whole numbers in discussing odds ratio. Yes, the video is the best. I am being picky.
+Gene Sammons What do you mean by "for" and "against?"
+Rahul Patwari (Rahul's EM)
Using your heart attack numbers, there are 10 patients in the group. 6 patients had a heart attack and 4 did not. I think gamblers would say the odds "for" a heart attack are 6 to 4. Gamblers might state the same relationship as the odds "against" a heart attack are 4 to 6.
I'm not a gambler, but I believe there are number of ways gamblers express odds. I was just going for the way the statisticians do it, but your point is well taken. Thanks!
This really helped me to finally understand the difference between OR and RR! Thank you.
Dr Rahul, you are the best, and it seems as you have a great confidence. your way of teaching is unique and I love it, wish you well
you are someone who really knows what is public health!!!! How great you interpret!!! thanks Patwari!!!
Crystal clear explanation. It made great help for me. Thanks a million!
This is seriously the most helpful video I have seen on this. Thank you!
Thanks a lot! You explained odds in a very simple way that made it easy to understand.
nice... I appreciate the way you simplify... You are a great teacher!
very underrated channel.. this channel should be much more popular
best review of probability and odds ratio yet! very very clear!
it's all about the denominator, baby LOL!
Thank you for clearing RR and OR it was really helpful :)
Great Explanation!!! Makes it easier to understand the difference in depth.
Fantastic explanations- THANK YOU!!!
Excellent and lucid... Thank you very much for sharing your knowledge
The explanation is easy to grasp, this has enabled me to solve a similar quiz. thank you
Thank you so much for this video! So clear, so helpful.
Thank you so much. There is a bunch of information on other courses butI couldn't find any playlist for epidemiology than yours.thanks for sharing it free🙏
this is the best explanation I have ever seen, thank you so much!!!
Thank you Dr. Patwari, your videos are easy to follow and very helpful.
I have to thank you for your amazing explanation.
EXCELLENT EXPLANATION, REALLY VERY HELPFUL
Brilliant
This is the first time I understand the odds
Very excellent.. your explanation was completely clear thank you.
Outstanding clarity.
Wow!!! That was great! I never understood odd ratio like that before ! Thank you very much..
Thank you sooo very much this has been the best and simplest explanation!!
DUUUUDE! I GOT IT! :) I watched like ten videos before and with this one I finally understood what odds ratio was! :) Thanks so much!
Great content💯...a must for step1 biostat prep
The clearest explanation ever! 👍
very informative and to the point in clarity.............. thanks
This is a fantastic explanation, thank you
I genuinely think you might have saved me from failing my Epidemiology exam - thank you!!
Thank you that is the best and simplest explanation!!!
absolutely wonderful explanation.
This is absolutely amazing. The best explanation on OR and RR with relation to case-control and cohort studies.
I guess cross-sectional studies would use OR as well and randomised controlled trials would use RR since they are an upgrade of the cohort study.
Additionally, could you please explain how would we interpret the results of RR and OR? Using your example, would RR of 3 be interpreted as "those who take pills have 3 times more risk to develop MI than those who do not take pills" and would OR of 3 be interpreted as "those who take pills are 3 times more like to develop MI than those who do not take the pills"?
Thank you for your videos.
this was the best explanation ever. thanks dude!
Thank you very much. You are a great teacher
thank you very much, it helped me a lot and you make it much clearer
Great job man, than you a lot. I almost got it but you helped me to fully uderstand it.
this is much better than any of the professors I asked!!! Thanks!
Current MPH student stressing over their epi midterm … thank you for this video!!
I am also a MPH student overwhelmed over Epi module, this guy is soo good. His calm way of explaining it without rushing through it definitely helps as do the examples as they are all relevant
thanks a lot for the video, you saved my midterm exam !
Thankyou, this was extremely clear!
Really good. I applaud you good sir
Thank you for sharing. What program do you use to make this video?
Thanks - very clear and helpful.
Very well explained.. Thank you
Awesome! Can not having mammograms and getting breast cancer be calculated with these scenarios? I really enjoyed the thoroughness and diagrams, which helped to clarify odds and risks.
so, can we use OR and RR interchangeably in case control study?
Thank you so much for this video!
can you mention the playlist where I can get all the basic stats
excellent! can you add some videos on study design and statistical tests that are used for example ANOVA versus spearman..
Crystal clear 😊😊😊❤❤❤ thank you 🙏
you are a legend mate. thank you
Very helpful. Thank you!
Wow, you are different. Thank you for such a great video. One question. If you do a retrospective analysis but you look at the effect of exposure on the outcome. (in my case, the risk of cancer recurrence depending on the duration of chemotherapy) Would you still use risk or logistic regression or what?
Perfect !!! Thank you very much !
Very nice illustration
Very Very Useful
Hi Rahul, thanks for your good explanation. It really helps me a lot. Just a quick question. As you mentioned at 15:40, if the number in confidence intervals is 1 which means it is not statistically significant, which means there is no different, is it same if it is more than 1, like the example you gave 11.2, it is more than one and not statistically significant, does it mean it has no different too? Thanks Rahul.
Superb video.
I am not good at English. Thanks a lot.I watch several videos about odds ratio but I have known clearly odds ratio through this video
Dr. Patwari is it right to think of the risk=incidens and odds=prevalence? I am having a hard time understanding the relationship?
Great explanation!
Very nicely explained...
Br, it is very nice video, what is the difference between Cohort study and Randomized control trial , are they same or not ? thanks for your time
Excellent explanation
Sir, its a wonderful explanation. when do we get negative CI and 0.00 CI?
Can you please give more explanation about the time direction in the 5:35
Thank you sir
Its very useful for me,🙏
Very nicely explained.thanks
this really helped me. thanks a lot.
Thanks for this great video. But I can not see any explanation about "risk ratio"!
Now I even understand Odds as it's used in Betting😂🤣
Very helpful. 👍
Great video !!
thanks man. This stuff is so usefull!
Very helpful! Thanks you!!! :.)
Amazing!
very well explained. . .
thank you very much Sir!
OMG THIS IS AMAZING, Thank you soo soo much for this video I don't suppose you to 1-2-1 tuition
excellent. thank you so much
excellent video! Thanks!
What software do you use for drawing in the slides?
Thanks again
+fernando rubinstein Vittle by Qrayon.
God ur a charm❤️ thanks doc
Gracias, muy buena explicación