PakMediNet Discussion Forum : Biostatistics : help me out in calculating sample size
help me out in calculating sample sizehelo everyone, my topic is comparison of placental histopathology in hypertensive versus normotensive primigravidas. the prevalence is 11 percent in our setup. al i know is to have confidence level of 95 percent. which formula to be used.
Posted by: 1012009Posts: 4 :: 01-05-2009 :: | Reply to this Message
Re: help me out in calculating sample sizeIn this case the sample size will be 141 with 5% precision and population size unknown. Agian I am available for further help
Posted by: ibrahim_apPosts: 138 :: 05-05-2009 :: | Reply to this Message
Re: help me out in calculating sample sizetell me your outcome variable. you want to determine what in the end or you want to make comaparison in terms of which variable?
Posted by: iqra.biosPosts: 2 :: 29-08-2009 :: | Reply to this Message
Re: help me out in calculating sample size
i think iqra u r working as biostatistician at cpsp lahore,
dont u knw the simple thing
Posted by: AnadilPosts: 5 :: 13-09-2009 :: | Reply to this Message
Re: help me out in calculating sample size
hi dear,
the calculation of sample size u are asking for can not be calculated on the basis of information u r giving, as it depends on ur objective and study design i will recomend you to consult cpsp regional centre for actual and proper calculation
or u can get help from 03224053157 in Islamad /Rawalpindi,
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Posted by: M. AfzalPosts: 6 :: 02-11-2009 :: | Reply to this Message