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.
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!
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!
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🙏
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
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.
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?
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.
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.
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.
Very easy to understand. Thanks your nice presentation. We hope more videos with good examples.
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!
The perfect video answering all the questions I had from other videos. Thank you!
Excellent..Your calm voice added with a pint of humor and fantastic clarity made it easy to understand..Thank you so much
This is the clearest explanation I've come across on explaining Odds vs Risks
Well done sir, and thank you!
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.
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!
very underrated channel.. this channel should be much more popular
Great explanation, pitch perfect, thanks so much for the details it makes these odd concepts palatable.
Keep up the good work!
I appreciate how clearly you lay out your teaching. I love the use of your pictures. Very very helpful for a newbie! Thank you
This is the best course I have ever had regarding the main difference between OR RR.
Really I appreciate it a lot.
Many thanks+++
This is seriously the most helpful video I have seen on this. Thank you!
Absolutely outstanding! I loved how you used drawing to explain and compare the formulas.
This really helped me to finally understand the difference between OR and RR! Thank you.
it's all about the denominator, baby LOL!
Thank you for clearing RR and OR it was really helpful :)
Finally I understood the differences between RR and OR! Thank you so much! Easily and simply
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!
Thanks a lot! You explained odds in a very simple way that made it easy to understand.
Thank you so much for this video! So clear, so helpful.
Crystal clear explanation. It made great help for me. Thanks a million!
Outstanding clarity.
nice... I appreciate the way you simplify... You are a great teacher!
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
Fantastic explanations- THANK YOU!!!
best review of probability and odds ratio yet! very very clear!
you are someone who really knows what is public health!!!! How great you interpret!!! thanks Patwari!!!
DUUUUDE! I GOT IT! :) I watched like ten videos before and with this one I finally understood what odds ratio was! :) Thanks so much!
I have to thank you for your amazing explanation.
this is the best explanation I have ever seen, thank you so much!!!
The explanation is easy to grasp, this has enabled me to solve a similar quiz. thank you
Thank you sooo very much this has been the best and simplest explanation!!
Great Explanation!!! Makes it easier to understand the difference in depth.
EXCELLENT EXPLANATION, REALLY VERY HELPFUL
Brilliant
This is the first time I understand the odds
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🙏
Great job man, than you a lot. I almost got it but you helped me to fully uderstand it.
I genuinely think you might have saved me from failing my Epidemiology exam - thank you!!
Great content💯...a must for step1 biostat prep
This is a fantastic explanation, thank you
Wow!!! That was great! I never understood odd ratio like that before ! Thank you very much..
thank you very much, it helped me a lot and you make it much clearer
The clearest explanation ever! 👍
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
Thank you that is the best and simplest explanation!!!
this was the best explanation ever. thanks dude!
Excellent and lucid... Thank you very much for sharing your knowledge
Thank you so much for this video!
Thank you Dr. Patwari, your videos are easy to follow and very helpful.
you are a legend mate. thank you
this is much better than any of the professors I asked!!! Thanks!
Thankyou, this was extremely clear!
absolutely wonderful explanation.
Very excellent.. your explanation was completely clear thank you.
thanks a lot for the video, you saved my midterm exam !
Thank you very much. You are a great teacher
this really helped me. thanks a lot.
Perfect !!! Thank you very much !
Very helpful. Thank you!
Very nice illustration
thanks man. This stuff is so usefull!
Really good. I applaud you good sir
Thanks - very clear and helpful.
God ur a charm❤️ thanks doc
very informative and to the point in clarity.............. thanks
Great explanation!
Amazing!
Crystal clear 😊😊😊❤❤❤ thank you 🙏
Great video !!
Thank you for sharing. What program do you use to make this video?
Very helpful! Thanks you!!! :.)
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.
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?
Thanks ! Great video ))
Superb video.
Very well explained.. Thank you
Now I even understand Odds as it's used in Betting😂🤣
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.
excellent. thank you so much
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.
thank you very much Sir!
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
Very Very Useful
Thanks it was well explained!
Gracias, muy buena explicación
excellent video! Thanks!
What software do you use for drawing in the slides?
Thanks again
+fernando rubinstein Vittle by Qrayon.
no one can explain this in a better way!
Very nicely explained.thanks
excellent! can you add some videos on study design and statistical tests that are used for example ANOVA versus spearman..
Thank you very much !!!
can you mention the playlist where I can get all the basic stats
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
well done help me a lot to understand
Nice!
Very helpful. 👍
Dr. Patwari is it right to think of the risk=incidens and odds=prevalence? I am having a hard time understanding the relationship?
Damn! This is a nice video lol.
I like your explanation
so, can we use OR and RR interchangeably in case control study?