window duration, and sleep duration within the SPT-window with polysomnography-derived metrics62. After quality control based on missingness, wear time, and calibration, eight metrics were generated and analyzed in this study, namely: M10 (midpoint of the 10 consecutive hours of maximum activity),...
This descriptive study was conducted at King Chulalongkorn Memorial Hospital from 2007 to 2015. Data of morbidly obese patients who underwent bariatric surgery were included using ICD-10 code for principle diagnosis "morbid obesity" (E668) and ICD-9 code for "bariatric surgery" (4389, 4438, 4439...
Interpretation of these data assumes accuracy of the ICD-9 and ICD-10 codes used by both hospitals and physicians while caring for patients enrolled in the database. The absence of a diagnosis code does not rule out the presence of a sleep disorder. Another limitation is that obesity is an...