Early controlled trials
نویسندگان
چکیده
منابع مشابه
Blindness in Randomized Controlled Trials
In combination with randomization, blinding or masking is an important factor in randomized controlled trials (RCTs), particularly in trials that assess therapeutic effects. Here an attempt is made to explain blindness and why it is important. In clinical trials, blinding is defined as the condition imposed on a study in which study participants, health care providers and assessors collecting o...
متن کاملblindness in randomized controlled trials
in combination with randomization, blinding or masking is an important factor in randomized controlled trials (rcts), particularly in trials that assess therapeutic effects. here an attempt is made to explain blindness and why it is important. in clinical trials, blinding is defined as the condition imposed on a study in which study participants, health care providers and assessors collecting o...
متن کاملRandomized Controlled Trials
This paper covers the topic of randomized controlled trials in social, educational, criminological, health, and other human service sectors. It is studded with illustrations from developed and developing countries. We address the basic ideas that underlie trials in different ways, and cover contemporary definitions and vernacular, some history, and idea of cumulating evidence from such trials i...
متن کاملPlacebo controlled trials.
Researchers assessed the efficacy of varenicline (a licensed cigarette smoking cessation aid) in helping users of smokeless tobacco to quit. A double blind placebo controlled parallel group randomised controlled trial study design was used. The intervention was varenicline 1 mg twice daily. Treatment was delivered for 12 weeks, with 14 weeks’ follow-up afterwards. Participants were aged 18 year...
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ژورنال
عنوان ژورنال: BMJ
سال: 1996
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.312.7041.1298