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An observational study was conducted in Ukraine to determine the independent mortality risks among adult inpatients with COVID-19. The results of treatment of COVID-19 inpatients ( n = 367) are presented, and waist circumference (WC) was measured. Logistic regression analysis was applied to evaluate the effects of factors on the risk of mortality. Odds ratios and 95% CIs for the association were calculated. One hundred and three of 367 subjects had fasting plasma glucose level that met the diabetes mellitus criteria (≥7.0 mmol/L), in 53 patients, diabetes mellitus was previously known. Two hundred and eleven patients did not have diabetes or hyperglycemia. Diabetes mellitus/hyperglycemia odds ratio 2.5 (CI 1.0–6.1), p = 0.045 loses statistical significance after standardization by age, waist circumference or fasting plasma glucose. No effect on gender, body mass index-determined obesity, or hypertension was found. The fasting plasma glucose (>8.5 mmol/L), age (≥61 years), and waist circumference (>105 cm) categories were associated with ORs 6.34 (CI 2.60–15.4); 4.12 (CI 1.37–12.4); 8.93 (CI 3.26–24.5), respectively. The optimal model of mortality risk with AUC 0.86 (CI 0.81–0.91) included the diabetes/heperglycemia and age categories as well as waist circumference as a continued variable. Waist circumference is an independent risk factor for mortality of inpatients with COVID-19.

Purpose A few interventional studies to date have specifically assessed the association between dairy products and/or sugar consumption and the risk of type 2 diabetes mellitus (T2D) incidence. The aim of this study was to assess the effectiveness of diet modification in people with impaired glucose regulation (IGR) as defined by a glucose tolerance test (GTT). Methods A quasi-experimental study design was used for this study. A total of 318 randomly selected 18-year-old or older participants from the rural area of the Kyiv region of Ukraine who had not been registered as T2D patients before underwent GTT between June 2013 and June 2017. For those who had been diagnosed with IGR, World Health Organization (WHO)/International Diabetes Federation criteria were used. Of 318 participants screened for T2D, 123 (74% of them females) were diagnosed with IGR. They were aged 18 to 79 years old with a median (QI – QIII) age of 62 (52–68) years. They were repeatedly tested during the study and completed a questionnaire on average 2.8 (1.1) years (standard deviation [SD]), after they had received their lifestyle-based T2D prevention recommendations. In addition to basic recommendations, they were advised to consume approximately 200 g of low-fat dairy products and less than 25 g of sugar daily. Cases of screen-detected diabetes mellitus (SDDM) were diagnosed and reported as an outcome variable if a fast capillary blood glucose level reached 6.1 mmol/L and above. To define the association between implementation of recommendations and the risk of SDDM, the Cox proportional-hazards regression analysis was used. Results During the study observation period, 56 (45.5%) of 123 IGR-positive participants were recognized as SDDM cases. Those individuals with IGR (n = 111) who confirmed their adherence to preventive recommendations had a significantly lower risk of identifying SDDM, age- and gender-adjusted hazard ratio (HR) 0.26 (95% CІ; 0.09–0.72). This effect appears to be related to the recommendation to reduce the daily intake of sugar to less than 25 g (n = 99), corresponding to age- and gender-adjusted HR 0.44 (95% CІ; 0.2–0.99). We cannot prove that increasing consumption of dairy products, vegetables, and fruit or increased physical activity had similar effectiveness. Conclusions After 2.8 years of follow-up, the individuals who are IGR-positive and who confirmed their adherence to lifestyle-based preventive recommendations had a significantly lower risk of identifying SDDM. This effect appears to be related to recommendations to reduce the daily intake of sugar to less than 25 g.