Aim First aid education in early childhood can be an effective method to increase the number of trained bystanders. Our aim was to evaluate the long-term effects of a 3-day first aid programme for all primary school-age groups (7–14 years old).

Methods This study was a 15-month follow-up of our previous investigation. Five-hundred and twenty-four primary school children were involved in this study. Measurements were made on the following topics: adult basic life support, using an automated external defibrillator (AED), handling an unconscious patient, managing bleeding and calling the ambulance. Data collection was made with a self-made questionnaire and skill test.

Results Knowledge and skills were significantly higher after 15 months than before training (p<0.01). However, these results were significantly worse than immediately and 4 months after training (p<0.01). Based on the questionnaire, more than three-quarters knew the emergency phone number 15 months after training. Approximately two-thirds of the children could use the correct hand position in cardiopulmonary resuscitation, the correct compression-ventilation ratio and an AED, and half of them could perform correct recovery position at 15 months. Correct assessment of breathing was similar in a situation game than before training. Self-efficacy improved significantly after training (p<0.01) and remained improved after 4 and 15 months when compared with before training (p<0.01).

Conclusion Participants could remember some aspects of first aid long term. However, knowledge and skills had declined after 15 months, so refresher training would be recommended. Self-efficacy towards first aid improved after training and remained high after 15 months.