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138 Chapter 7 Table 1. Patient characteristics DA group Control group P -value Complete participation Lost to follow-up P -value N= 235 N=100 N=270 N=65 Patients Age at informed consent Mean (SD) 64.9 (6.0) 66.2 (5.7) .06 65.6 (5.8) 64.2 (6.4) .09 Marital Status, n (%) Married/together 208 (89%) 87 (86%) .54 244 (90%) 51 (60%) <.001 Other 27 (11%) 14 (14%) 27 (10%) 34 (40%) Education, n (%) Low 76 (33%) 36 (36%) .41 81 (30%) 31 (48%) .02 Medium 54 (23%) 28 (28%) 69 (26%) 13 (20%) High 101 (44%) 36 (36%) 117 (44%) 20 (31%) Gleason sum, n (%) 6 134 (61%) 44 (69%) .25 141 (61%) 37 (71%) .16 7 86 (39%) 20 (31%) 91 (39%) 15 (29%) PSA level, mean (SD) ≤10.0, n (%) 180 (78%) 72 (75%) .92 203 (77%) 49 (79%) .94 10.1-20.0, n (%) 50 (22%) 24 (25%) 61 (23%) 13 (21%) Number of eligible treatments 2 49 (21%) 25 (28%) .51 59 (23%) 21 (27%) .74 3 115 (50%) 42 (46%) 130 (50%) 37 (47%) 4 65 (29%) 24 (26%) 71 (27%) 20 (26%) Treatment received Active surveillance 68 (31%) 19 (19%) <.001 63 (24%) 26 (36%) .11 Surgery 87 (39%) 29 (29%) 98 (37%) 26 (36%) Radiotherapy 67 (30%) 52 (52%) 101 (39%) 21 (28%) Other/unknown 13 1 9 6 Perceived role in weighing pros and cons, n (%) Doctor-driven 24 (10%) 16 (16%) .23 Shared 123 (54%) 56 (56%) Patient-driven 81 (36%) 28 (28%) Perceived role in treatment decision, n (%) Doctor-driven 13 (6%) 6 (6%) .94 Shared 104 (45%) 47 (47%) Patient-driven 113 (49%) 47 (47%)