{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"0","upperLimit":"6","value":".66"},{"groupId":"OG001","lowerLimit":"0","upperLimit":"8","value":".84"}]}],"title":"30 minutes"},{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"0","upperLimit":"10","value":"1.62"},{"groupId":"OG001","lowerLimit":"0","upperLimit":"10","value":"1.62"}]}],"title":"1 day after biopsy"},{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"0","upperLimit":"8","value":".89"},{"groupId":"OG001","lowerLimit":"0","upperLimit":"5","value":".63"}]}],"title":"3 days after biopsy"},{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"0","upperLimit":"5","value":".18"},{"groupId":"OG001","lowerLimit":"0","upperLimit":"5","value":".26"}]}],"title":"7 days after biopsy"}],"denoms":[{"counts":[{"groupId":"OG000","value":"50"},{"groupId":"OG001","value":"50"}],"units":"Participants"}],"description":"The VAS (visual analogue scale) for pain is on a 10 point scale. Pain is studied with chi-square, Mann Whitney U test, or Fisher's exact test.\n\nThe pain scale used was 0-10, with 0 being no pain and 10 being the worst pain.","dispersionType":"95% Confidence Interval","groups":[{"description":"Patients undergo bone marrow biopsy using the power drill. Patients complete questionnaires at baseline, 30 minutes after biopsy, and on days 1, 3, and 7.\n\nPower drill: Undergo bone marrow biopsy using power drill","id":"OG000","title":"Arm I (Biopsy Using Power Drill)"},{"description":"Patients undergo bone marrow biopsy using the traditional Jamshidi needle. Patients complete questionnaires at baseline, 30 minutes after biopsy, and on days 1, 3, and 7.\n\nJamshidi needle: Undergo bone marrow biopsy using Jamshidi needle","id":"OG001","title":"Arm II (Biopsy Using Jamshidi Needle)"}],"paramType":"MEAN","reportingStatus":"POSTED","timeFrame":"At the time of, 30 minutes, 1, 3, and 7 days after biopsy","title":"Intensity of Pain Measured Using Visual Analogue Scale (VAS) Pain Questionnaire","type":"SECONDARY","unitOfMeasure":"score on a scale"}