Young workers with less than 4 years of working experience make the highest risk group of construction workers. Workers aged between 20-34 with less than 4 years of experience account for one fifth of the total number
of injured workers. The rate of their injuries is from three (workers aged 20-24 and 30-34) to six times (workers
aged 25-29) higher than the average injury rate. For older workers (over 50 years of age), it cannot be determined
that they present a higher risk group compared with the total of all workers. An exception to this are the workers
aged 50-54 with less than 9 and more than 20 years of experience, whose injury ocurrence rate is by around 70%
higher than the average.