Associations of night eating with body mass index and waist circumference among health sciences students living in a post-conflict region.

Background: Stressors associated with the ongoing ethnic tensions may be the drivers of more frequent night eating, and subsequently, a higher body mass index.

Aim: To examine the association of night eating with body mass index (BMI) and waist circumference among health sciences students in Northern Kosovo.

Methods: A cross-sectional study was carried out at the University of Prishtina in Kosovska Mitrovica from November 2018 to March 2019. Participants completed a socio-demographic questionnaire, the Night Eating Questionnaire (NEQ), the Beck's Anxiety Inventory (BAI) and the Perceived Stress Scale (PSS). Body weight, height, and waist circumference were measured by the research team.

Results: The study sample consisted of 534 students. The night eating score was 14.4 ± 4.5 out of 52 (prevalence of night eating syndrome was 3.0%). Overall, the average BMI was 23.7 ± 4.5 kg/m² (27.2% of students were overweight and 7.5% were obese). Moderate level of stress as measured by the PSS was observed 61.8% and high level of stress was recorded among 5.8%. Also, 9.2% students reported moderate BAI score and 6.0% students reported severe BAI score. After adjustment for socio-demographic characteristics, health behaviors, sleep, stress and anxiety levels, no association of night eating with BMI and waist circumference was observed.

Conclusion: These findings showed that there is an absence of the association between night eating, BMI and waist circumference among students who live in a post-conflict setting. There may be other factors that mediate the relationship between food intake at night and body mass index.