Clinico–anatomical characteristic of the traffic trauma in the megapolis environment. The fourth report: estimation of clinical risks

Objective. Establishment and verification of clinical definite risks in the injured persons, in whom trauma have occurred as a consequence of the traffic accidents in environment of megapolis. Materials and methods. The pattern of a nature type was used, formatted in accordance to the big numbers law and following the demands and the evidence–based medicine criteria. The investigation volume, which was presented by 1139 observations of trauma as a consequence of the traffic accidents in period 2019–2020 yrs, and formatted using method of a reverse randomization in accordance to the damage signs and the random numbers method. Results. In general massive of the injured persons the clinical resultant risk index have constituted 0.05 and was verified as a minimal one in accordance to qualitative characteristic. The risk–creating factor, named “gender” in the injured persons has been situated in range of minimal qualitative characteristic in both genders, but its quantitative values were bigger in men by 66.67 %. Here exist a pronounced dependence of clinical resultant risk index from the age sign of the injured persons, and in the age groups up to 70 yrs old it is minimal, while after 70 years old – nonessential. This index was characterized in all participants of the traffic as a minimal, but the biggest risk of the negative result occurrence concerning the traumatic process course have had the pedestrians. The death risk in the injured person has been raised accurately along with enhancement of the injury severity index, ranging from the minimal to catastrophic one. The negative result risk for the traumatic course has been depended probably on the affection volume: the death probability in the injured person raising accurately with the affection volume enhancement. The damage of 4 anatomic–functional portions was considered as a critical. Conclusion. The clinic–epidemiological risk–creating factors have got qualitative characteristic “minimal”– from 0.02 to 0.09, excluding persons of a senile age, for whom they were nonessential (0.2). The biggest risk of the death was revealed in the injured active participants of traffic – drivers (0.03) and pedestrians (0.08). For clinic–nosological risk–creating factors a quite certain trend for the death risk enhancement oi the injured person with enhancement of volume and severity of the damage was depicted in detail, and qualitatively were characterized from minimal (0.01) to catastrophic (0.82). The impact of the risk–creating factors owes a complex character.