Impact of nutritional status on length of stay and hospital costs among patients admitted to a tertiary care hospital in Thailand.

BACKGROUND AND OBJECTIVES: Malnutrition has high prevalence among hospitalized patients but goes unrecognized in many patients. Early detection of malnutrition using an effective screening tool is required. This study aimed to examine the effects of nutritional status determined by the Nutrition Alert Form (NAF) and its individual sections on length of stay (LOS) and hospital costs in hospitalized patients, to investigate their associated factors, and to determine hospital malnutrition prevalence. METHODS AND STUDY DESIGN: This retrospective cohort study enrolled 2,906 hospitalized patients aged >=15 years in Ramathibodi Hospital between January and September 2016. At admission, nutritional status was screened using NAF. Nutrition status was defined as: NAF-A (normal/mild malnutrition; scores of 0-5), NAF-B (moderate malnutrition; 6-10), and NAF-C (severe malnutrition; >=11). Information regarding LOS and hospital costs during patients' hospitalization was also collected. RESULTS: The prevalence of malnutrition was 15.3%. After adjusting for age, sex and primary diagnosis, we found significantly longer LOS and higher hospital costs among those with NAF-B and NAF-C, in comparison with patients having NAF-A. The highest increase in LOS was in male patients aged >=60 years with NAF-C. The highest increase in LOS and hospital costs was associated with higher scores for functional capacity. CONCLUSIONS: Higher levels of malnutrition screened using the NAF were significantly associated with longer LOS and higher hospital costs. Older adult patients had the highest risk of being malnourished and developing negative consequences. A prospective study of nutritional support by a nutrition care team is underway.

The Effect of Vitamin D Supplementation on Metabolic Phenotypes in Thais with Prediabetes.

OBJECTIVE: To investigate the effects of vitamin D supplement for three months on anthropometric and glucose homeostatic measures in Thai adults with impaired fasting glucose (IFG) and/or impaired glucose tolerance (IGT). MATERIAL AND METHOD: Forty-seven IFG and/or IGT subjects enrolled in the study. Subjects were randomized into three groups, control (n = 18), vitamin D2 (20,000 IU weekly, n = 19) or vitamin D3 (15,000 IU weekly, n = 10). Anthropometric variables were obtained at baseline and at 3-month. Oral glucose tolerance test was performed at baseline and at 3-month. Total serum 25(OH)D, 25(OH)D3, and 25(OH)D2 were measured by LC-MS/MS. Insulin resistance (HOMA-IR) and insulin secretion index (HOMA%B) were calculated by the homeostasis model assessment. RESULTS: The total 25(OH)D levels significantly increased from baseline in both the vitamin D2 and the vitamin D3 groups, while there was no change in the control group. D3 supplementation raised 25(OH)D3 significantly (+13.7 ± 4.9 ng/mL, p < 0.01) while D2 increased 25(OH)D2 levels (+25.9?4.2 ng/mL, p<0.001) but with a decrease in 25(OH)D3 (-13.1?3.1 ng/mL, p<0. 001). Subjects were classified into two groups, i.e., control (n = 18) and D2 or D3 supplementations (n = 29). After three months, waist circumference (WC) significantly decreased in subjects of vitamin D supplementation group. Body weight (BW p = 0.05), systolic blood pressure (SBP, p = 0.05), body mass index (BM, p = 0.06), and HOMA-IR (p = 0.09) also tended to decrease. Subjects with an increase of total 25(OH)D levels > 10 ng/mL (23 of 29 subjects) had significant decrease in HOMA-IR and increase in disposition index. Using robust regression analysis, we found the use of D3 was associated with a larger decrease in WC (coefficient = -3.5, p < 0.001) independent of the change in total 25(OH)D and baseline BMI. No difference between D2 and D3 was observed for other metabolic measures. CONCLUSION: Weekly supplementations of vitamin D2 (20,000 IU) or vitamin D3 (15,000 IU) improve metabolic phenotypes in subjects with prediabetes. D3 supplement may decrease waist circumference more than D2 supplement.

Circulating sclerostin and irisin are related and interact with gender to influence adiposity in adults with prediabetes.

Objectives. Sclerostin, an osteocyte-specific protein, has been found to be related to adiposity and glucose metabolism. Irisin, a myokine, can affect browning of white fat and influence glucose and energy homeostasis. Taken together, this suggests a probable network among fat, bone, and muscle that may influence health outcomes. The aims of this study were to investigate the relationship of circulating sclerostin and irisin and their association with adiposity (assessed by body mass index (BMI)). Materials/Methods. A cross-sectional study included 98 adults with impaired fasting glucose and/or impaired glucose tolerance. 75 gm OGTT was performed in all subjects. Fasting plasma samples were obtained for glycated hemoglobin, calcium, creatinine, serum sclerostin and irisin. Results. Circulating irisin and sclerostin were highly correlated (r = -0.4; P < 0.001). After controlling for age, gender, and BMI, irisin was significantly related to sclerostin (P < 0.001). Multivariate linear regression analysis demonstrated that circulating sclerostin (ß = -0.45; P < 0.05) and irisin (ß = -0.46; P < 0.05) were negatively associated with BMI, independent of age in males. In females, no relationship of sclerostin or irisin to BMI was found. Conclusions. Circulating irisin and sclerostin are highly related. Interventions targeting irisin could affect sclerostin and vice versa.