Related Experiment Video
Updated: Oct 7, 2026

Meta-Analysis of the Effectiveness and Safety of Shugan Jieyu Capsules for the Treatment of Insomnia
Published on: February 17, 2023
Somatic and psychological complaints and their correlates with insomnia in the Japanese general population
K Kim1, M Uchiyama, X Liu
1Department of Psychophysiology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Ichikawa-city, Chiba, Japan.
Objective:
This cross-sectional study was conducted to estimate the prevalence of somatic and psychological complaints (SPCs) and to investigate the association of SPCs with insomnia in a sample of the general adult population of Japan.
Methods:
We randomly selected 4000 adult residents (-20 years old) from five areas of Japan using stratified sampling and conducted interviews using a structured questionnaire. The questionnaire solicited information about eight somatic symptoms, eight psychological symptoms, three sleep problems, and demographic and health-related information. A total of 3,030 subjects completed questionnaires, giving a response rate of 75.8%.
Results:
Stiff neck/shoulder (45.3%), backache (35.1%), and fatigue (31.4%) were the most common complaints in this population. In general, SPCs were more prevalent in younger persons and in women. Logistic regression analyses, controlling for other factors, showed that insomnia was significantly associated with a number of SPCs: backache (odds ratio [OR] = 1.4, 95% confidence interval [CI] = 1.1-1.6), epigastric discomfort (OR = 1.7, 95% CI = 1.3-2.2), weight loss (OR = 2.0, 95% CI = 1.2-3.3), headache (OR = 1.7, 95% CI = 1.3-2.2), fatigue (OR = 1.7, 95% CI = 1.4-2.1), worrying (OR = 1.6, 95% CI = 1.1-2.3), irritability (OR = 1.4, 95% CI = 1.1-1.7), and loss of interest (OR = 1.8, 95% CI = 1.2-2.7).
Conclusions:
SPCs were common and were largely associated with insomnia in the general adult population of Japan. Further study is needed to examine the causal links between SPCs and insomnia.
Related Concept Videos
Insomnia
Multiple factors contribute...
Management of Insomnia
Substance Use Disorders Affecting Sleep
Understanding the concepts of physical dependence,...
Primary Motives: Sleep, Sex, and Pain Avoidance
Sleep is a fundamental physiological drive that fosters a state of restfulness crucial for several bodily functions. It facilitates body restoration, the process by which the body repairs, rejuvenates, and maintains itself during sleep, including memory...
Insufficient Sleep and Sleep Deprivation
Sleep deprivation is a more severe form of sleep loss...
Factors Affecting Illness
For instance, risk factors are connected to illness, disability,...