Influence of Work Characteristics on the Association Between Police Stress and Sleep Quality

BACKGROUND: Police officers' stress perception, frequency of stressful events (stressors), and police work characteristics may contribute to poor sleep quality through different mechanisms. METHODS: We investigated associations of stress severity (measured by stress rating score) and frequency of stressors with sleep quality and examined the influence of police work characteristics including workload, police rank, prior military experience, and shift work on the associations. Participants were 356 police officers (256 men and 100 women) enrolled in the Buffalo Cardio-Metabolic Occupational Police Stress Study from 2004 to 2009. A mean stress rating score and mean frequency of stressors occurring in the past month were computed for each participant from the Spielberger Police Stress Survey data. Sleep quality was assessed using the global score derived from the Pittsburgh Sleep Quality Index survey. Linear associations of the stress rating score and frequency of stressors with sleep quality (Pittsburgh Sleep Quality Index global score) were tested. Age, sex, race/ethnicity, and smoking status were selected as potential confounders. RESULTS: The stress rating score was positively and independently associated with poor sleep quality (β = 0.17, p = 0.002). Only workload significantly modified this association (β = 0.23, p = 0.001 for high workload group; p-interaction = 0.109). The frequency of stressors was positively and independently associated with poor sleep quality (β = 0.13, p = 0.025). Only police rank significantly modified the association (β = 0.007, p = 0.004 for detectives/other executives; p-interaction = 0.076). CONCLUSION: Both police officers' perception of stress severity and the frequency of stressors are associated with poor sleep quality. Stress coping or sleep promotion regimens may be more beneficial among police officers reporting high workloads.

The relationship of stress with serum IgE level in patients with bronchial asthma

The relationship of stress perception and frequency of stressors with serum total Ig E level was investigated in 54 outpatients with bronchial asthma. The GARS (global assessment of recent stress) scale and SRRS (social readjustment rating scale) were used to measure the degree of stress perception and frequency of stressors during a one-year period Total serum Ig E was measured by the PRIST method. 56% of the patients were found to have psychosomatic disorders, but there was no significant difference in stress perception and frequency of stressors between psychosomatic and non-psychosomatic groups. A considerable number of patients (63%) rated their symptoms as severe, but no significant correlation was found between severity of symptoms and stress perception. Severity of stress perception and frequency of stressors did not correlate with serum total Ig E level. Multiple regression analysis revealed that female patients were significantly higher in stress perception than male ones, and that chronicity of illness was more likely to increase stress perception. Extrinsic asthmatics had significantly more negative stressors than intrinsic ones. In conclusion, serum Ig E is considered a stable indicator of allergy not influenced by stress. It was also indicated that patients with bronchial asthma were more likely to perceive physical symptoms than psychological stress.