[Analysis of causes of occupational stress with the QFSL, questionnaire on occupational stress factors].

Stressors at work are classified, according to Kalimo (1980) and Cooper (1976) in six broad categories: role within organisation, intrinsic stressors, interpersonal problems, work climate, career, social context. The 40-item Factors of Stress Questionnaire has been proposed as a screening instrument for causes of stress at work. The factor structure of the questionnaire was evaluated in 371 health care workers. Internal reliability analysis was also conducted. The Factor Analysis, according to the Kaiser rule to drop all components with eigenvalues under 1.0, gave nine principal components, with a 58% cumulative variance explained. However, most of these components had poor comprehensibility. The first component was significantly related to most of the items. The questionnaire showed good reliability (Cronbach's alpha = 0.93).