The prevalence was relatively low in older people of Chongqing, Southwest China. Poor nutrition was found to be increased due to the common health problems. Thus the patients with these problems should pay more attention on nutritional status. The older people should often have fish because of their nutritional benefit.

Hypertension, CHD, TC, and LDL-C are independent risk factors for MCI. Moreover, patients with vascular diseases have a higher risk of MCI; however, the amount of vascular diseases does not increase the risk of MCI.

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Background Insomnia is a major public health problem affecting older people. This study aimed to investigate the prevalence and clinical risk factors of insomnia in a representative sample of Chinese elderly (≥ 60 years) in Chongqing. Methods A cross‐sectional study based on comprehensive geriatric assessment was conducted from January 2013 to February 2014. A questionnaire on sleep status was provided to each patient and insomnia was assessed according to the Diagnostic and Statistical Manual of Mental Disorders 4th edition criteria. A multivariate logistic regression model was used to illustrate risk factors correlated with insomnia. Results Of the total 597 participants, 55.4% suffered from insomnia. The prevalence of insomnia in men and women was 48.2% and 63.2%, respectively. Coronary heart disease, dizziness, chronic pain, anorexia, malnutrition, depression and cognitive decline were identified as risk factors associated with insomnia. Hypertension, diabetes, hyperlipidaemia, headache, age and education level were not observed to be significantly associated with insomnia. Conclusions Insomnia is highly prevalent among the elderly in Chongqing, and shows a positive correlation to coronary heart disease, dizziness, chronic pain, anorexia, malnutrition, depression, cognitive impairment. Moreover, women are more likely to experience insomnia than men.

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