At the same time, it is necessary to emphasize the fact that the dominance of female students in the obtained higher level of stress measured by the 10-item PSS tool has been proven in many studies [30,44,46,48]. Thus, gender characteristics play an important role in similarly focused research [49]. In this area, it is also appropriate to take into account income, which may be related to the psychological well-being of young-adult students [50], while in several studies, the PSS score increased with lower income of the general population [51,52].
