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Abstract
Night-eating syndrome (NES) belongs to «Other specified Feeding and Eating Disorder». NES is characterized by nocturnal food intake, insomnia, morning anorexia and depressed mood. This eating disorder (ED) is typical for patients with type 2 diabetes (T2D), obesity or overweight. NES worsens the metabolic control of T2D and complicates its management. Currently, there is only one assessment instrument which can help to diagnose this syndrome — night eating questionnaire (NEQ). Unfortunately, it is not yet adapted to use in the Ukrainian population. Aim: Evaluation of the validity of NEQ adaptations of the Ukrainian version for its use in patients with T2D, obesity or overweight. Material and methods. 105 individuals (37 men and 68 women, age — 60.3±7.2 years, body mass index (BMI) — 31.9±3.7 kg/m2) with T2D, obesity or overweight completed the translated version of NEQ. The internal consistency of the questionnaire was assessed using the Cronbach’s alpha coefficient. Convergent validity was assessed by correlation with the Eating Disorder Examination Questionnaire (EDE-Q). Testretest was performed in three weeks by 34 participants. Results. NES was diagnosed in 17 participants (16.2%). Mean NEQ total score was 17.3±5.1. Cronbach’s alpha coefficient for the total score was 0.76, interclass correlation — 0.81. A four-factor questionnaire structure was found similar to the original version. The total NEQ score correlated with the EDE-Q result (r=0.56). The reliability of the retest was high (0.71). BMI and HbA1c did not statistically differ in patients with and without NES. The mean NEQ total score did not correlate with BMI (p>0.05). Conclusions. The prevalence of NES in patients with T2D is 16.2%. The Ukrainian version of the questionnaire is reliable and valid for assessing NES. NEQ can be used in this category of patients for making the diagnosis and choosing an appropriate treatment. Further studies on normal weight diabetic and non-diabetic obese and overweight individuals are needed. Further studies
of the NEQ efficacy are needed in patients with T2D and normal body weight, as well as in obese or overweight people but without diabetes.
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