[Наталья П.]

[Ссылки доступны только зарегистрированным пользователям ]

Study design


A clinical trial investigated the effectiveness of topical versus oral ibuprofen for chronic knee pain in people over 50. In designing a trial to decide the best treatment approach, which answer best describes how confounding could be minimised?


a) Double blind trial

b) Intention to treat analyses

c) Matching by age and sex

d) Randomisation of research participants