tag:blogger.com,1999:blog-5919828027142556081.post3471652906320793317..comments2020-11-30T00:19:15.084+05:45Comments on Medical Thesis Guide: Sample size calculation : Comparative studiesUnknownnoreply@blogger.comBlogger2125tag:blogger.com,1999:blog-5919828027142556081.post-48350106742859512682020-07-04T13:42:34.039+05:452020-07-04T13:42:34.039+05:45Assuming from the previous study that the mean (SD...Assuming from the previous study that the mean (SD) of HbA1 c level in Group A and Group B was 5.5 (2.2) and 7.5 (2.0), respectively. At 95% CI and 80% power of the study, find out the sample size for the new study,<br /><br><br />σ1 = 2.2<br />σ2 = 2<br />d = 7.5-5.5 = 2<br /><br><br />From calculation, n = 153 in each groupEpomedicinehttps://www.blogger.com/profile/00715890081469698369noreply@blogger.comtag:blogger.com,1999:blog-5919828027142556081.post-16560880709765574452020-07-04T13:39:59.072+05:452020-07-04T13:39:59.072+05:45A researcher wants to compare the knowledge among ...A researcher wants to compare the knowledge among Group A and Group B. From the previous study, proportion of the two groups is taken, i.e., 40% and 20%, respectively. A researcher wants 95% CI and 80% power for the study. Calculate the total subjects required for a new study.<br /><br><br />p1 = 0.4<br />p2 = 0.2<br />C = 7.85<br /><br><br />From calculation, n = 79 in each groupEpomedicinehttps://www.blogger.com/profile/00715890081469698369noreply@blogger.com