Design Of Trials

Techniques to avoid bias

The two most important techniques are:

• Randomisation

Randomisation introduces a deliberate element of chance into the assignment of treatments to the subjects in a clinical trial. It provides a sound statistical basis for the evaluation of the evidence

Control better

95% Confidence Interval

,a i Superiority shown b more strongly Superiority shown

Blood Pressure Health

Blood Pressure Health

Your heart pumps blood throughout your body using a network of tubing called arteries and capillaries which return the blood back to your heart via your veins. Blood pressure is the force of the blood pushing against the walls of your arteries as your heart beats.Learn more...

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