Abstract
Objective:Sleeping disorders are common among Haemodialysis-HD patients. In addition to well-known factors, food consumption impact on sleep quality needs being discovered. Aim was to examine the nutrition-related factors that may influence sleep quality in HD patients.Methods:One hundred and three patients in three HD centres participated. Data were collected with Pittsburgh Sleep Quality Index-PSQI and Questionnaire Form about socio-demographic characteristics and appetite. Biochemical findings were obtained; food consumption for three consecutive days was recorded. Independent Samples t/Mann Whitney U tests for mean comparison; Logistic Regression Analysis for determining variables affecting sleep quality, were used.Results:Mean age was 59.19±14.57 years. 51.5% were women. 37.9% had good (PSQI<5) and 62.1% had poor (PSQI≥5) sleep quality. Appetite had significant impact on sleep quality; poor sleeping risk was 4.194 fold higher in patients with bad appetite than those with good appetite (p=0.038). Biochemical findings of poor and good sleepers were similar, except for potassium and creatinine. Vitamins B1, B6 and folate intake of good and poor sleepers were significantly different. Patients with good sleep quality consumed significantly higher amounts of above B vitamins (p=0.030, p=0.036, p=0.034, respectively).Conclusions:Favourable effect of appetite and certain nutrients intake on sleep quality in HD patients was shown. Improving nutritional status of HD patients has potential to increase their sleep quality.
Highlights
Chronic Kidney Disease (CKD) has become globally epidemic due to increased life duration and diabetes-hypertension cases.[1]
Circadian rhythm deteriorates in HD patients because melatonin secretion, which plays the crucial role in biological clock and circadian
Patients with moderate appetite had 3.226 fold higher risk for poor sleep quality compared to patients with good appetite, (p=0.027)
Summary
Chronic Kidney Disease (CKD) has become globally epidemic due to increased life duration and diabetes-hypertension cases.[1] These patients have sleeping problems which decrease quality of life besides dietary restriction, nutritional problems, HD treatment.[2] Sleeping disorders among HD patients is prevalent (50-83%). In patients with CKD, abnormal cellular interleukin production occurs which causes sleepiness HD causes sleeping problems by excretion of this sleepinducing substance.[3] Circadian rhythm deteriorates in HD patients because melatonin secretion, which plays the crucial role in biological clock and circadian. Inflammatory processes stimulate tryptophan degradation which triggers sleep disorders.[6] Insufficient sleep in CKD patients is known to cause three important complications (Type 2 Diabetes Mellitus-T2DM, hypertension, obesity).[7]. This study was planned to examine the nutrition-related factors that may influence patients’ sleep quality, in addition to finding out possible dietary implementations for HD patients with poor sleep by excluding the other sleep-deteriorating factors
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