Actigraph assessment of sleep
PCOS
Both the women with PCOS and the controls wore an actigraph, ActiSleep+ (ActiGraph) device on their non-dominant wrist or in some cases where this was not possible, around their ankle. They were encouraged to wear the device for 7 consecutive days, the whole time apart from when showering/taking a bath or undertaking other water-based activities. Patients and controls with recordings for less than three consecutive periods of 24 hours were excluded from the study. The PCOS study population carried the actigraph at baseline and at 4 months, and the control group only at baseline.Actigraphy uses an accelerometer that measures movements and uses three-dimension acceleration data which are converted to estimated sleep parameters using the commonly used and validated Sadeh sleep algorithm (