AVP and Stroke: The median serum copeptin among stroke patients in this study was 28.6 pmol/l (15.4 to 31.6 pmol/l) and this was significantly higher (U-test = 812.0; p=0.001) among the stroke patients (Median = 28.6; IQR: 15.4-31.6 pmol/l) than the control participants (Median = 8.8; IQR: 3.2-10.7 pmol/l).