At what age can schoolchildren provide effective chest compressions? An observational study from the Heartstart UK schools training programme

Objective To determine at what age children can perform effective chest compressions for cardiopulmonary resuscitation. Design Observational study. Setting Four schools in Cardiff. Participants 157 children aged 9-14 years in three school year groups (ages 9-10, 11-12, and 13-14). Interventions Participants were taught basic life support skills in one lesson lasting 20 minutes. Main outcome measure Effectiveness of chest compression during three minutes' continuous chest compression on a manikin. Results No year 5 pupil (age 9-10) was able to compress the manikin's chest to the depth recommended in guidelines (38-51 mm). 19% of pupils in year 7 (age 11-12) and 45% in year 9 (age 13-14) achieved adequate compression depth. Only the 13-14 year olds performed chest compression as well as adults in other reported studies. Compression depth showed a significant relation with children's age, weight, and height (P