Table 2. Positivity of CS-RCTs by Trial Registry and Bibliographic Database.
Trial registry by RCT finding | Article language, No. (%) | Bibliographic database language, No. (%) | ||
---|---|---|---|---|
English | Chinese | English | Chinese | |
ChiCTR | ||||
Positive | 180 (85.3) | 31 (14.7) | 186 (88.2) | 25 (11.8) |
Negative | 56 (59.6) | 38 (40.4) | 67 (71.3) | 27 (28.7) |
All | 236 (77.4) | 69 (22.6) | 253 (83.0) | 52 (17.0) |
English-language registries | ||||
Positive | 91 (87.5) | 13 (12.5) | 93 (89.4) | 11 (10.6) |
Negative | 32 (69.6) | 14 (30.4) | 37 (80.4) | 9 (19.6) |
All | 123 (82.0) | 27 (18.0) | 130 (86.7) | 20 (13.3) |
DCTRP | ||||
Positive | 5 (62.5) | 3 (37.5) | 6 (75.0) | 2 (25.0) |
Negative | 2 (40.0) | 3 (60.0) | 4 (80.0) | 1 (20.0) |
All | 7 (53.8) | 6 (46.3) | 10 (76.9) | 3 (23.1) |
Total | ||||
Positive | 276 (85.4) | 47 (14.6) | 285 (88.2) | 38 (11.8) |
Negative | 90 (62.1) | 55 (37.9) | 108 (74.5) | 37 (25.5) |
All | 366 (78.2) | 102 (21.8) | 393 (84.0) | 75 (16.0) |
Abbreviations: ChiCTR, Chinese Clinical Trial Registry; CS-RCT, Chinese-sponsored randomized clinical trial; DCTRP, Drug Clinical Trial Registry Platform.