Which of the following statements about the safety and effectiveness of health technology is incorrect?

A、The safety and effectiveness of health technology are closely related to health cost.;

B、Effectiveness and safety are two independent and interdependent concepts.;

C、Safety indicators are often measured by the number of health hazards happened to patients.;

D、Effects are expressed as efficacy or effectiveness according to the environment and conditions of health technology implementation.;

E、The effectiveness is often more important than the safety of health technology.