Groups Versus Individuals 1 Type I Error Rates of Four Methods for Analyzing Data Collected in a Groups-Versus- Individuals Design by

Type I Error Rates Of Four Methods For Analyzing Data Collected In A Groups vs Individuals Design

Post-operative effects of Oral Midazolam versus Hydroxyzine on Ketamine Intravenously Sedated children

Objectives The aim of this clinical trial was to compare the effects of oral Midazolam with oral Hydroxyzine on post sedation using IV Ketaminein children. Methods This single blind cross over clinical trial, was conducted on 25 children aged 2-6 years of ASA I and definitely negative by Frankl behavioral scale. Participants were divided into two groups: Group I received hydroxyzine syrup prem...

تحلیل وضعیت آنژین صدری بر اساس احتمالات طبقه بندی نادرست عامل خطر سیگار در مطالعه قند و لیپید تهران، 79-1378

Misclassification of disease status and risk factors is one of the main sources of error in studies. Wrong assignment of individuals into exposed and non-exposed groups may seriously distort the results in case-control studies. This study investigates the effect of misclassification error on odds ratio estimates and attempts to introduce a correction method. Data on 3332 men aged 30-69 years fr...

P-30: Developmental Capacity and Blastocyst Formation of Thawed Tetrahedral Versus Non-Tetrahedral 4-cell Stage Mouse Embryos After Vitrification

Background: It was reported in a literature that approximately one third of the 4-cell stage embryos did not exhibit a tetrahedral shape. Non-tetrahedral embryos showed a lower in vitro developmental potential than tetrahedral embryos. Recently vitrification technology has been widely employed for embryo cryopreservation. The objective of this study was to prove our hypothesis that vitrified - ...

Impact of Bispectral Index Monitoring Versus Clinical Judgment as a Guide for Conduction of Anesthesia on Serum Cortisol Level in Co-ronary Artery Bypass Graft Surgery

Background: Inadequate depth of anesthesia leads to release of stress hormones. Electroencephalographic monitoring by bispectral index is a guide to asses the depth of anesthesia. The aim of the present study was to measure the serum cortisol levels as an index of stress response in patients who are candidates for coronary artery bypass graft surgery in two groups of patients. Methods: Seventy-...