{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","spread":"11.1","value":"-3.1"},{"groupId":"OG001","spread":"10.5","value":"-3.2"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"148"},{"groupId":"OG001","value":"148"}],"units":"Participants"}],"description":"PSS consist of 14 items that assess the impact on stress in a 5-points scale (0=never, 1=almost never, 2=sometimes, 3=fairly often and 4=very often). The total scores were the sum of all 14 items. The scores were then transformed into a 100-point scale with higher numbers indication less stress. Change from baseline to week 4 was calculated by subtracting the baseline scores from the scores at week 4.","dispersionType":"Standard Deviation","groups":[{"description":"Patients received oral American ginseng twice daily for 14 days. This treatment was repeated every two weeks for 4 courses, for a total of 8 weeks of treatment.","id":"OG000","title":"Ginseng"},{"description":"Patients received oral placebo twice daily for 14 days. This treatment was repeated every two weeks for 4 courses, for a total of 8 weeks of treatment.","id":"OG001","title":"Placebo"}],"paramType":"MEAN","populationDescription":"Includes all participants who completed both baseline and week 4 assessments.","reportingStatus":"POSTED","timeFrame":"Baseline and Week 4","title":"Change From Baseline to Week 4 for the Impact on Stress as Measured by Perceived Stress Scale (PSS)","type":"SECONDARY","unitOfMeasure":"units on a scale"}