** High Yield | (Part 3 of 7) USMLE Biostatistics & Epidemiology: A complete review | Step 1 2 3

In this video series, I broadly cover almost every Biostatistics and Epidemiology topic in the USMLE syllabus. Where relevant, I go through sample problems and describe a few nifty mnemonics!
Link to slides
tinyurl.com/2p8epbyy
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Content:
** High Yield
Module 3: Measures of association
00:00 Introduction
00:14 ** 2X2 table
01:16 ** Relative Risk/ Risk Ratio (RR)
05:15 ** Odds Ratio (OR)
09:31 Rare disease assumption for OR to approximate RR
11:02 ** Hazard Ratio
13:13 Absolute Risk
13:45 ** Attributable Risk (AR)/ Risk Difference, Absolute Risk Reduction (ARR )
14:50 ** Number needed to : Harm (NNH), Screen (NNS), Treat (NNT)
16:01 ** Attributable Risk Percent (ARP)
16:40 ** Relative Risk Reduction (RRR)
17:33 ** Population Attributable Risk (PAR)
18:35 ** Population Attributable Risk Percent (PAR%)
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USMLE syllabus/content outline:
www.usmle.org/sites/default/f...
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Music
Destiny by ASHUTOSH / grandakt
Creative Commons - Attribution-ShareAlike 3.0 Unported - CC BY-SA 3.0
Free Download / Stream: bit.ly/3EAYLQd
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Disclaimer
This video is for educational purposes only and not intended for medical advice. Any medical cases discussed are fictional and made up unless specifically stated in the video

[@emmycoffey400]

I literally might watch this series once a week! it is so useful and biostats is so tricky!!!

[@piyushpuri7284]

Thanks a lot! Very few genuine people are sharing knowledge for free for the masses.

[@AzfarBasuniaMD]

You're very welcome. I am glad you found this content helpful!

[@Vincent-yf3pn]

I feel it will be a popular study material in the future.

[@AzfarBasuniaMD]

That would be a dream!

[@geetabhandari5692]

Thank you so much for this amazing video

[@lucasdagamalobo8118]

Great Work. Congratulations!!

[@AzfarBasuniaMD]

Thanks!

[@palomaaveni451]

Thanks so much!! Really help me with this difficult topic🙏

[@AzfarBasuniaMD]

You're welcome. Best of luck on the exam!

[@lokeshwarreddychinthakunta5704]

Best. Thank you so much.

[@AzfarBasuniaMD]

You’re welcome! Best of luck!!

[@tobynyle]

Thanks, Doc for this. Please could someone help explain how he got the cases per person-year in the last example? @30:49 Thank you in advance.

[@cristiancastillorodriguez7070]

Hi Dr. Basunia, beforehand thanks you very much for such an incredible job resuming those complex topics. I am IMG from Colombia pursuing IM (waiting for the match results). I would like to ask you how did you boost your medical english skills assuming that English is not your native language.

[@AzfarBasuniaMD]

Great question! English is not my native language. A good way to boost medical English would be to boost general spoken English. I watched a lot of movies with the subtitles on, and would try to imitate how the actors/actresses spoke. The best way is to actually practice - do it with real patients in a real clinical setting. Much like your clinical skills, it will improve with time and practice. Best of luck!

[@AD-yz5wh]

Hi Dr. Basunia, I have a quick question at time point 32:58 when you discuss alternate wording for the odds ratio example, can you further explain where the 70% stems from if there is an odds ratio of 1.7?

[@AzfarBasuniaMD]

Percentage conversion = absolute value(1-OR) * 100% Examples, OR = 1.9 --> 90% greater OR = 2.5 --> 150% greater OR = 0.45 --> 55% lower OR = 0.25 --> 75% lower

[@AD-yz5wh]

@@AzfarBasuniaMD Thank you !