Epidemiological study of vital exhaustion and sleep disorders in dwellers of Siberia

Objective: to study the prevalence of vital exhaustion (VI) and sleep disorders, the pattern of the latter in 45–69-year-old Novosibirsk dwellers (Siberia) with different levels of VI.

Patients and methods. A random representative sample of 45–69-year-old women (n=2401) from two Novosibirsk districts were examined within the 2003–2005 HAPIEE (Health, Alcohol and Psychosocial Factors In Eastern Europe) prospective cohort study. Another random representative sample of 45–69 men (n=1770) from two Novosibirsk districts were examined within a subsequent screening study. The entire sample consisted of 4171 residents: men and women were 42.4% and 57.6%, respectively. The mean age of the men was 56.5±7.01 and that of the women was 56.3±7.07. The response rate was as high as 61%. Testing was carried out using the short 14-item version of the Maastricht Questionnaire (MQ) to evaluate VE and the 4-item Jenkins Sleep Questionnaire (JSQ) to investigate sleep quality and duration.

Results. The leading determinants of VE were the incidence of fatigue, interrupted sleep, lethargy, the degree of irritability, and a feeling of exhaustion and tiredness. The population examined was found to have a high prevalence of VE and sleep disorders. There was a close correlation between high VE and impaired sleep quality and duration.

Conclusion. The high rate of impaired sleep quality and duration in the Novosibirsk population, which is sometimes twice greater than that in other populations, is associated with the high prevalence of depression, anxiety, VE, and hostility among the population. This is due to the high prevalence of cardiovascular diseases. A sleep disorder may cause VE. It is important to promptly establish a psychotherapeutic diagnosis of these conditions, followed by their subsequent correction.

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