my subscription and like was just the least I could do to say thank you
@nancyzambrana35505 жыл бұрын
You have no idea how confused I was, after watching your video I can finally say: I got it! Thank you Sir!
@drboston3 жыл бұрын
Thanks Dr.Shaneyfelt! Much more clear and short explanation better than my epi professor!
@RostamiMehdi Жыл бұрын
Confounding is when a third variable falsely makes it seem like there's a causal relationship between two other variables. Effect modification is when the strength or direction of a causal relationship varies based on another factor. The key difference is that confounding distorts the observed relationship, while effect modification reveals different relationships in subgroups.
@kuntalbandyopadhyay36935 жыл бұрын
Wow..well explained sir...im a preventive health specialist...it cudnt hv been explained in better or simpler way..good job
@obinnadaniel20018 жыл бұрын
This was awesome! Crystal clear explanation
@jamesrobertson91496 жыл бұрын
this is a wonderfully clear explanation.
@kaitdoeschem91813 жыл бұрын
Thank you, Dr. Shaneyfelt. I use your videos to study for my epidemiology exams (MSPH 7001 at Meharry Medical College).
@fienamerzistya95284 жыл бұрын
Thank youu sooo much for helping me Dr. Terry, this video SAVED MY LIFE!!! :')
@fazilehkhani2135 жыл бұрын
THIS VIDEO SAVED MY LIFe thank youuuu
@MohamedGamal-bn3xe2 жыл бұрын
Thanks so much, great and simple illustration
@ShafiKhan-km4lw3 жыл бұрын
Bundle of thanks sir, now i got it
@Yassin-Ghassan-Taha8 жыл бұрын
Thank you very much Dr Terry for the excellent video..
@carolineoreardon2229 Жыл бұрын
Great explanation! Thank you.
@katherinekcarreromartinez82364 жыл бұрын
thank you from Puerto Rico!
@dr.anantsapra11142 жыл бұрын
I think the age and smoking combo with lung ca can be both effect mod and confounding. 1. Different age smoker have different outcomes( effect mod) 2. Higher age is having 2-3x more dev of lung ca as compared to young age. Also old age person tends to smoke more as compared to young person. (As seen in asia/ india) like confounder.
@kliphlove34588 жыл бұрын
Good job as usually Dr. Shaneyfelt- I miss UAB!
@carolynh68528 жыл бұрын
This finally cleared it up fo me. Thanks Dr. S!!!
@drokraebube2983 Жыл бұрын
Could age have been an effect modifier in covid deaths? Considering covid infection as the exposure? Just saying thank you so much for the wonderful explanation. It is now more clear to me.
@valeriepasquale37413 жыл бұрын
This was so helpful! Thanks!
@sharlotkantonieta3 жыл бұрын
Thank you so much doctor!
@hannahjenkins46982 жыл бұрын
So helpful - thank you!
@MohamedKandilMD9 жыл бұрын
Very helpful explanation thanks a lot
@heidihi5474 жыл бұрын
Very helpful. Thanks
@juliawang30553 жыл бұрын
this was amazingly helpful! Is there a way to differentiate between confounders, effect modification, and interaction?
@el.priest65187 жыл бұрын
Great videos!
@basmaowaidy85123 жыл бұрын
thank you so much that was helpful !!
@mariafridh258 жыл бұрын
Excellent explanation! Thank you so much!
@orthopedicmbbs3 жыл бұрын
kzbin.info/www/bejne/bYqTlHeVi96nbZI
@rajeshshigdel14729 жыл бұрын
Excellent lecture
@gonzalomunoztapia6 жыл бұрын
Thank you, very clear and useful.
@jlngweshemi9 жыл бұрын
This is very very helpful!!
@pmahcthitikorn2 жыл бұрын
Helpful
@khurrumshehzad7188 жыл бұрын
thanks dr,,,i m ur fan
@indrajitsaha60994 жыл бұрын
A study was conducted to assess the extrapyramidal side effects of a new antipsychotic drug in patients with schizophrenia. Many of these patients were smokers and some of them were on anticholinergic drugs. What was the role of the anticholinergic drugs in this study?
@UABEBMcourse4 жыл бұрын
Would have to test like i suggest at the 4 minute mark or so. Probably confounder is my guess but its only a guess.
@yvesburtworthington32447 жыл бұрын
outstanding!!!
@markcheruiyot99349 жыл бұрын
useful information
@stevegerrish67205 жыл бұрын
Thanks so much!
@vipinkravi6 жыл бұрын
thank you Terry
@tracyquetzal947710 ай бұрын
How did you calculate if the effect modification was significance? Where does the p value come from?
@zzgrace55998 жыл бұрын
good
@imanibessem90808 жыл бұрын
THANK YOU SOOOOOOO MUCH!!!
@MelbourneMaster4 жыл бұрын
Ive seen examples of age and sex being a confounder. So I still dont see how to differentiate
@susheelgautam6 жыл бұрын
thanx a lot
@rohanshinkre4 жыл бұрын
Thank u
@fatboy1179 жыл бұрын
there has to be an easier way to explain this
@hindhader6 жыл бұрын
please do cause i am not following this at all. lol and i need to know cause im writing my thesis
@Tntpker5 жыл бұрын
@@hindhader Like he explained in the video, a confounding variable (smoking in the video) is not involved in the causal chain of the effect of Hormone Replacement Therapy (HRT) on Cardiovascular disease (CVD). However, smoking itself DIRECTLY effects Hormone replacement therapy and CVD (because smoking has been proven to be bad for CVD). Therefore, it basically 'skews' the effect of HRT on CVD (which you're trying to find out) in people who smoke, compared to people who don't smoke and you need to adjust for this. Smokers will LIKELY have more CVD problems than non smokers, so you will naturally find more CVD problems in people who smoke. Now effect modifcation IS involved in the causal chain of HRT -> CVD, and thus this means that it is a *biological phenomenon* . In the video the variable 'age' is mentioned. When you stratify according to age, the age of a patient 'modifies' the effect of HRT on CVD, it changes the effect (older people have less elastic artery walls, and therefore the effect of HRT on CVD may change with age).
@chitritaghosh42795 жыл бұрын
@Tntpker Thank you very much for your lucid explanation of the difference .. Feeling stress free. I have a seminar on bias in clinical trial in this week. And I was fighting for a clear Idea about this thing. You just saved me.