V originále
Dva tisíce šestnáct otců vytvořilo longitudinální kohortu s údaji z obou období, ostatní tvoří skupinu alternativní. Celý soubor otců byl rozdělen podle počtu úrazů do kategorií bez úrazu, s úrazovostí nízkou,střední a vysokou. Incidence jednotlivých příčin úrazů se od jedné kategorie ke druhé zvyšovaly různým tempem, což vyjadřují relativní rizika (RR) se základem v kategorii otců s nízkou úrazovostí. V důsledku nestejného rozložení příčin mezi kategoriemi se struktura příčin úrazů mezi otci s různě vysokou úrazovostí lišila. I v longitudiální kohortě a v alternativní skupině bylo složení příčin úrazů jiné u otců se střední a vysokou úrazovostí než u otců s nízkou. Úrazovost otců ve druhém období byla studována podobně. Tendence k podobné úrazovosti je v mužské populaci silná a dlouhodobá.
Anglicky
From the population of 3580 fathers, who provided data on injuries from the birth of their children (aged on average 27.7 years), 2255 of them also submitted the second set of data from a period of next five years.The morbidity associated with these injuries was considered based on causes (17 and 25 causes in the first and second periods, respectively) of individual injuries, incidence per 100 men and treatment environment(hospital, outpatient department, solely at home).Total of 2016 fathers formed a longitudinal cohort with data from both periods; the remaining ones formed an alternative group.The whole group of the fathers was divided by the occurrence of injuries into categories as follows: without injuries, with low injury frequency, intermediate injury frequency and high injury frequency. The incidences of particular causes of injuries from one category to the other increased at different rates, which was expressed by the relative risk (RR) based on the category of fathers with the low injury frequency. Due to unequal distribution of causes between the categories, the structure of injury causes was different between fathers with different levels of the injury frequency.In the longitudinal cohort and alternative group, the structure of causes of injuries was different in fathers with intermediate and high injury frequencies compared to fathers with the low injury frequency.The frequency of injuries of fathers in the second period was studied in a similar manner as in the first period. Numbers of injuries from the second period, assigned to categories of their previous injury frequency, were directly graded in accordance with their previous injury history as follows: RR = 1 – 1.19 – 1.75 – 2.48 (p<0.000); thus, there was a strong and long-term tendency to similar injury frequencies in the male population.