Evaluation of the effect of body composition and nutritional habits on circadian sleep rhythm in adult individuals

This study was conducted in the clinic of a self-employed dietitian in Diyarbakır, with a total of 60 volunteer individuals, 31 women and 29 men, who were between the ages of 18-65 and did not have any diagnosed disease. According to the Body Mass Index (BMI) classification, 30 individuals with normal body weight (BMI=18.5-24.9 kg/m²) constituted the control group, and 30 individuals who were obese (BMI=≥30 kg/m²) constituted the study group. It was observed that 56.7% of the individuals participating in the study were women (n= 17) and 43.3% were men (n= 13). In the study, it was found that the mean age of individuals whose body weight was normal according to the BMI classification was 29.3±7.48 years, and the mean age of obese individuals was 32.3±8.43 years. It was found that the median values of obese individuals' Pittsburgh Sleep Quality Index (PKI) total score (Z=-4.041, p<0.001), sleep quality (Z=-4.001, p<0.001), sleep latency (Z=-2.113, p=0.035) and daytime dysfunction (Z=-2.496, p=0.013) scores were statistically significantly higher than normal individuals. It was found that there was a statistically significant positive correlation between the sleep disorder scores of obese individuals and BMI (r=0.398, p=0.029) and body weight measurements (r=0.602, p<0.001). The results of the study showed that there was a statistically significant positive correlation between the sleep disorder scores of obese individuals and BMI (r=0.398, p=0.029). According to Multivariate Binary Logistic Regression Analysis, it was found that an increase in sleep quality subscale scores increased the risk of obesity 3.292 times (p=0.009, GA;1.346 – 8.051).