Table 1.

Work-related problems identified by workers.

Variable	Type of Problem
DEMAND	Increase in work due to changes in rules and laws. Workload is sometimes excessive, and unevenly distributed. Extension of work beyond office hours.
CONTROL	Difficulty updating skills. Excessive concentration of responsibility in the hands of a few people, lack of proxies.
SUPPORT	Gradual deterioration of relationships.
EFFORT	Fatigue derives more from relationship problems between people or groups than from the work to be carried out.
REWARD	No recognition for the work performed or encouragement in the event of difficulties.
OVERCOMMITMENT	Some workers are busy at work 24 h a day.
PROCEDURAL JUSTICE	Procedures are not always verified.
DISTRIBUTIVE JUSTICE	Inequalities in responsibility loads. Uncertainty about individual responsibility for tasks.
INTERPERSONAL JUSTICE	Significant lack of correct conduct in relationships, verbal violence.
INFORMATIONAL JUSTICE	Lack of information. Excessive gap between managers and other workers.