Zhao X, et al. - Researchers performed a cross-sectional study of 4344 patients who underwent polysomnography due to suspicion of obstructive sleep apnea (OSA) for the association of abdominal or general obesity indices or visceral adiposity indicators with OSA. After adjusting for potential confounding factors, they noted an independent association of waist circumference (WC) and body mass index (BMI) with the apnea-hypopnea index (AHI). In the longitudinal study, remission of OSA was not significantly associated with improvement in WC and BMI, whereas significant correlation was noted between the change in the visceral adiposity indicator (lipid accumulation calculated according to WC and fasting triglycerides) and ΔAHI. As per these findings, abdominal obesity but not general obesity seems to play a more significant role in OSA.