Shorter training intervals increase high school students' awareness of cardiopulmonary resuscitation: a questionnaire study.

Objective: To explore training-related independent factors affecting the awareness of cardiopulmonary resuscitation (CPR) in senior high school students in Shanghai.

Methods: Questionnaires measuring CPR-related knowledge were distributed to 430 senior high school students in Shanghai.

Results: The overall CPR qualification rate was 7.