From: Sponsorship bias and quality of randomised controlled trials in veterinary medicine
Outcomes from trials with pharmaceutical funding/involvement | Outcomes from trials with non-pharmaceutical funding stated | Outcomes from trials with no funding source stated | Outcomes from all trials | |
---|---|---|---|---|
Positive outcomes | 56.9% (339/596)_{a} | 34.9% (66/189)_{b} | 29.1% (51/175)_{b} | 47.5% (456/960) |
Negative outcomes | 23.5% (140/596)_{a} | 37.6% (71/189)_{b} | 37.1% (65/175)_{b} | 28.8% (276/960) |
No difference | 0.8% (5/596)_{a} | 2.6% (5/189)_{a,b} | 4.6% (8/175)_{b} | 1.9% (18/960) |
Described only | 12.8% (76/596) | 16.9% (32/189) | 18.9% (33/175) | 14.7% (141/960) |
Not reported | 6.0% (36/596)s | 7.9% (15/189) | 10.3% (18/175) | 7.2% (69/960) |