Baseline median SBP in the supine position was not affected by mild ( 10mmHg ) abdominal compression prior to rising ( without abdominal compression : 146mmHg ; interquartile range , 124-164mmHg ; with the conventional binder : 145mmHg ; interquartile range , 129-167mmHg ; with the adjustable binder : 153mmHg , interquartile range , 129-160mmHg ; P = .85 ) .