Aim of the study: To help in prevention of children´s injuries by comparing them with parental injury morbidity. To investigate whether such a relation exists at all – if yes, whether the relations are the same in boys as well as in girls, and whether they change during their progressing age or not. Methods: According to numbers of their injuries before and five years after the birth of their children, the parents were divided into four categories: without any injury and with low, medium, and high numbers of them. Injuries of their children in age periods 0–3, 3–5, 5–7 and 7–11 years as well as during cummulated periods of 0–7 and 0–11 years were compared between parental categories. Results: Injuries of children were directly and closely associated with the parental ones. Between the offspring of parents with no injury and of the parents with medium or high numbers of injuries, significant differences have been found in injury incidence per 100 children and in the rate of injury repeaters, gradually increasing on the parental scale. In the same direction, the rate of injury – free children decreased. During preschool age, these relations grew stronger, in school age they seemed to get stabilized. Up to 5 years of age, they were more evident in girls and later – namely in cummulative age periods, they were stronger in boys. Conclusion: Parental injuries are significant risk factor(s) for injury morbidity of their children: prevention of parental injuries is the best prevention of injuries for their offspring. The cause of this phenomenon is not clear, beside the life style and social environment shared by both generations, it might be some processes not yet investigated in families, eg. of metabolic or neurobiolocal nature that are common in both generations.

        Key words: children´s and parents´ injuries, associations between generation, relative risks, longitudinal study, epidemiology of injuries