{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","spread":"3.11","value":"6.03"},{"groupId":"OG001","spread":"4.58","value":"7.59"}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"31"},{"groupId":"OG001","value":"27"}],"units":"Participants"}],"title":"Baseline"},{"categories":[{"measurements":[{"groupId":"OG000","spread":"3.60","value":"5.79"},{"groupId":"OG001","spread":"2.82","value":"6.13"}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"24"},{"groupId":"OG001","value":"24"}],"units":"Participants"}],"title":"Day 30 after discharge"},{"categories":[{"measurements":[{"groupId":"OG000","spread":"3.41","value":"4.80"},{"groupId":"OG001","spread":"3.74","value":"6.30"}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"20"},{"groupId":"OG001","value":"20"}],"units":"Participants"}],"title":"Day 90 after discharge"}],"denoms":[{"counts":[{"groupId":"OG000","value":"38"},{"groupId":"OG001","value":"35"}],"units":"Participants"}],"description":"The Pittsburgh Sleep Quality Index consists of 19 self-rated instrument full scale from 0-21, with higher score indicating poorer sleep quality.","dispersionType":"Standard Deviation","groups":[{"description":"PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.","id":"OG000","title":"Circadian Active Bright White Light (BWL)"},{"description":"Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.","id":"OG001","title":"Circadian Inactive Dim White Light (DWL)"}],"paramType":"MEAN","populationDescription":"Data available only for participants who completed instrument for respective study visits.","reportingStatus":"POSTED","timeFrame":"Baseline, Day 30 and Day 90","title":"The Pittsburgh Sleep Quality Index","type":"SECONDARY","unitOfMeasure":"score on a scale"}