|
All difficulties (15 items)
|
Scientific difficulties (7 items)
|
Logistical difficulties (7 items)
|
---|
Study characteristics:
|
Difference
|
95 % CI
|
Difference
|
95 % CI
|
Difference
|
95 % CI
|
---|
Public sponsorshipa (vs. private)
|
1.3
|
0.4,2.1
|
0.9
|
0.4,1.3
|
0.4
|
-0.1,0.9
|
Single center study (vs. multicenter)
|
0.8
|
0.1,1.5
|
0.6
|
0.2,1.0
|
0.3
|
-0.1,0.7
|
“Clinical” studyb (vs. otherc)
|
0.7
|
0.0,1.3
|
0.1
|
-0.2,0.5
|
0.6
|
0.3,1.0
|
- Difference = beta coefficients; CI = confidence interval
-
aPublic hospital, University
-
b Intervention or diagnosis or prognosis studies
-
chealth/illness, public health/health economics, methods, other