{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","value":"1"},{"groupId":"OG001","value":"2"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"16"},{"groupId":"OG001","value":"48"}],"units":"Participants"}],"groups":[{"description":"Participants received MIRCERA IV injection at a starting dose based on an intermediate conversion factor from their previous ESA dose (4 \\* previous weekly epoetin dose \\[IU\\]/250 or 4 \\* previous weekly darbepoetin alfa dose \\[mcg\\]/1.1) once every 4 weeks for 20 weeks. Participants who completed the 20 weeks of treatment and had Hb level within ± 1 g/dL of their baseline Hb level and within the target range of 10-12 g/dL, entered an optional 52-weeks safety extension period. During this period, the participants continued to receive MIRCERA IV injection once every 4 weeks.","id":"OG000","title":"MIRCERA Group 1: Intermediate-Conversion-Factor Group"},{"description":"Participants received MIRCERA IV injection based on a high conversion factor from their previous ESA dose (4 \\* previous weekly epoetin dose \\[IU\\]/125 or 4 \\* previous weekly darbepoetin alfa dose \\[mcg\\]/0.55) once every 4 weeks for 20 weeks. Participants who completed the 20 weeks of treatment and had Hb level within ± 1 g/dL of their baseline Hb level and within the target range of 10-12 g/dL, entered an optional 52-weeks safety extension period. During this period, the participants continued to receive MIRCERA IV injection once every 4 weeks.","id":"OG001","title":"MIRCERA Group 2: High-Conversion-Factor Group"}],"paramType":"NUMBER","populationDescription":"ITT population.","reportingStatus":"POSTED","timeFrame":"Baseline to Week 20","title":"Number of Participants With Blood Transfusions","type":"SECONDARY","unitOfMeasure":"participants"}