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Table 3 Trial characteristics-continued

From: Portfolio of prospective clinical trials including brachytherapy: an analysis of the ClinicalTrials.gov database

  All BF OT Availability*
(n = 245, 100 %) (n = 147, 60 %)b (n = 98, 40 %)c BF vs OT**
Primary purpose     
 Data not availablea 7 (2.9 %) 4 (2.7 %) 3 (3.1 %) 1.000*
Treatment 214 (89.9 %) 126 (88.1 %) 88 (92.6 %) 0.550**
Supportive Care 8 (3.4 %) 6 (4.2 %) 2 (2.1 %)
Diagnostic 9 (3.8 %) 6 (4.2 %) 3 (3.2 %)
Health Services Res. 3 (1.3 %) 3 (2.1 %) 0 (0 %)
Prevention 4 (1.7 %) 2 (1.4 %) 2 (2.1 %
Masking     
 Data not availablea 37 (15.1 %) 19 (12.9 %) 18 (18.4 %) 0.244*
Open Label 195 (93.8 %) 117 (91.4 %) 78 (97.5 %) 0.105**
Double-Blind 6 (2.9 %) 4 (3.1 %) 2 (2.5 %)
Single Blind 7 (3.4 %) 7 (5.5 %) 0 (0 %)
Allocation     
 Data not availablea 111 (45.3 %) 65 (44.2 %) 46 (46.9 %) 0.675*
Non-Randomized 44 (32.8 %) 31 (37.8 %) 13 (25.0 %) 0.124**
Randomized 90 (67.2 %) 51 (62.2 %) 39 (75.0 %)
Overall     
Active, not recruiting 52 (21.2 %) 34 (23.1 %) 18 (18.4 %) 0.075**
Completed 83 (33.9 %) 40 (27.2 %) 43 (43.9 %)
Recruiting 96 (39.2 %) 62 (42.2 %) 34 (34.7 %)
Not yet recruiting 13 (5.3 %) 10 (6.8 %) 3 (3.1 %)
Enrolling by invitation 1 (0.4 %) 1 (0.7 %) 0 (0 %)
  1. aPercentage of total number per column
  2. bBrachytherapy in focus
  3. cOther trials
  4. * p value for availability of data between groups
  5. ** p value for test between BF and OT (without unavilable data)