Physical Violence Against Children and Adolescents in Porto: A 5-Year Study.

The aim of the present study was to analyze the prevalence of physical violence against children and adolescents (PVCA) in a 5-year period in the city of Porto, Portugal. All forensic reports between 2009 and 2013 in the clinical services of the North Branch of the National Institute of Legal Medicine and forensic sciences were analyzed. Victims were classified according to sex, age, relationship with perpetrator, traumatic consequences of the event, and year of occurrence. Statistical analysis was performed using SPSS (Version 22.0). Continuous variables were described when appropriated frequencies were displayed. The association between variables was evaluated using chi-square, Fisher's exact test, or Kruskal-Wallis test, when appropriate and a logistic regression was performed. The margin of error for the statistical tests was 5.0%. A total of 2,148 occurrences were evaluated. Most subjects were male, and mean victim age was 13 years. The single most frequent perpetrator was an unknown individual, but most offenders were known to the victim. The majority site of injury was the face. The larger number of complaints of aggression maintained a similar frequency over the 5 years analyzed. A physical examination to confirm the reasons between the complaint and the type of aggression was performed and shown a high relationship. Adolescents were more susceptible to violence than younger children were. The most affected region was the face.