Table 1 Number ( %) of trials registered
From: Registration of randomized controlled trials in nursing journals
Not registered (n = 78) | Registered but not reported (n = 3) | Retrospectively registered (n = 30) | Prospectively registered (n = 13) | Prospectively registered (ID in abstract) (n = 11) | Total | |
|---|---|---|---|---|---|---|
Journal | ||||||
IJNS | 40 (50%) | 3 (4%) | 20 (25%) | 10 (12%) | 7 (9%) | 80 |
JAN | 28 (67%) | - | 7 (17%) | 3 (7%) | 4 (10%) | 42 |
JPM | 10 (77%) | - | 3 (23%) | - | - | 13 |
Trial registry | ||||||
Clinicaltrial.gova | - | 2 (6%) | 16 (52%) | 5 (16%) | 8 (26%) | 31 |
ISRCTNb | - | - | 6 (60%) | 3 (30%) | 1 (10%) | 10 |
ANZCTRc | - | 1 (11%) | 6 (67%) | - | 2 (22%) | 9 |
HKRCTNd | - | - | - | 2 (100%) | - | 2 |
Iranian trail registrye | - | - | 1 (100%) | - | - | 1 |
Chinese trial registryf | - | - | 1 (100%) | - | - | 1 |
NTRg | - | - | 0 (0%) | 3 (100%) | - | 3 |
Design | ||||||
RCT | 75 (64%) | 2 (2%) | 24 (20%) | 10 (8%) | 7 (6%) | 118 |
Cluster RCT | 1 (9%) | 1 (9%) | 3 (27%) | 3 (27%) | 3 (27%) | 11 |
Stepped wedge | 1 (100%) | - | - | - | - | 1 |
Pilot | 3 (60%) | - | 2 (40%) | - | - | 5 |
Feasibility study | - | - | 1 (50%) | - | 1 (50%) | 2 |
Continent of corresponding author affiliation | ||||||
Asia | 53 (71%) | 2 (3%) | 17 (23%) | 2 (3%) | 1 (1%) | 75 |
Australia and NZ | 3 (38%) | 1 (13%) | 3 (38%) | - | 1 (13%) | 8 |
Europe | 17 (40%) | - | 5 (16%) | 11 (27%) | 7 (17%) | 40 |
North and South America | 7 (54%) | - | 5 (36%) | - | 2 (14%) | 14 |
Conflicts of interests | ||||||
Declared | 71 (57%) | 3 (2%) | 28 (23%) | 13 (10%) | 10 (8%) | 125 |
Not declared | 9 (75%) | - | 2 (17%) | - | 1 (8%) | 12 |