Sample size calculation for randomized control trial (RCT)

Sample size calculation for randomized control trial.
To calculate a sample size, we may use a practical example
Let us consider an outcome variable such as a disease or any other health related indicators.
#RCT #SampleSize #Randomization

[@sayeedahuq3390]

Excellent presentation

[@mamoonibn4683]

Thank you for making this video

[@mdmehedihasan8740]

Helpful. Thanks

[@MohammadAli-cx5bz]

Important lecture...

[@mst567643]

Also Please, could you provide a reference for sample size calculation for dichotomous outcome superiority clinical trials ?

[@hajarashehu-dy8ll]

Please can you tell me how you got the proportions

[@rasyidahghazalli6354]

Hi, could you share an Excel sheet for this sample size calculation?

[@joelgasana6477]

Thank you lecture , i was struggling with my paper now i got very helpful presentation. does this formul has a specific name ? example: cochrane ???

[@ahshanulstatistician6644]

Thank you. I don't know the specific name but we call it "sample size for equality two proportions"

[@fabricedjouma7754]

Good lecture. Please, can you share the Excel sheet used for sample size canculation?
Thanks

[@ahshanulstatistician6644]

Thank you. Please go to the link

[@rasyidahghazalli6354]

@@ahshanulstatistician6644 Sorry. Which link do you refer?

[@anranran2207]

How can we know the proportion of outcome in each group?

[@ahshanulstatistician6644]

Thank you to raise this issue. Generally proportion of control group is chosen from literature review/previous study/case study or national survey whereas the proportion is assumed based on research hypothesis.

[@chuchuchurko8687]

Dear instructor, from where can we get p1 and p2?

[@ahshanulstatistician6644]

Thank you so much to raise the issue. Let p1 is the intervention and p2 is control. Then the value of p2 will be used based on literature review or previous study. p1 will be used based on research hypothesis.
For example, a research hypothesis is that "after giving intervention the child's chronic malnutrition will be reduced by 6 percentage point."
Then p2 will be 31% based on our BHDS 2017/18 survey. And p1 will be 25% based on our hypothesis.

[@rajnithapa2988]

Thank you so much sir

[@md.jiaurrahman2147]

Can you please provide the reference of the formula used in calculation ?

[@ahshanulstatistician6644]

Thank you. I had no more knowledge on youtube technical issues. Yotube gave an update on comment section. After that time I couldn’t follow any comment. Just I completed the setting and am getting the previous comment. I am extremely sorry dear.

[@zainabaqeelkhan7293]

How you estimated attrition??

[@ahshanulstatistician6644]

Thank you.
This will be based on previous experience

[@dr.foramjoshi3287]

How the proportion of outcomes were taken?

[@nirmalastha8138]

We can take proportion of outcome from other similar research

[@mst567643]

Can you please provide the reference of the formula used in calculation ?