Table 6 Multiple linear regression analysis of potential factors affecting the methodologic quality of interventional SRs/MAs of CP/CPPS (N = 38)
Characteristics | Coefficients | 95% CI | P value |
|---|---|---|---|
Publication year (Before 2010) | |||
 After 2010 | 0.398 | -0.149, 0.944 | 0.147 |
Continent (Asia) | Â | Â | Â |
 Europe | 0.652 | 0.046, 1.258 | 0.036 |
 North America | -0.053 | -0.639, 0.532 | 0.853 |
 South America | -0.094 | -1.233, 1.045 | 0.867 |
PRISMA (No) | Â | Â | Â |
 Yes | -0.134 | -0.606, 0.338 | 0.564 |
Preregistration (No) | Â | Â | Â |
 Yes | 0.194 | -0.237, 0.625 | 0.362 |
Funding support (No) | Â | Â | Â |
 Yes | 0.029 | -0.384, 0.442 | 0.886 |
RCT enrollment (non-RCTs) | Â | Â | Â |
 RCTs and non-RCTs | -0.405 | -1.470, 0.660 | 0.441 |
 RCTs | -0.322 | -1.424, 0.781 | 0.554 |
Whether CDSR (non-CDSR) | Â | Â | Â |
 CDSR | 0.425 | -0.422, 1.272 | 0.312 |
Meta-analysis (Without) | Â | Â | Â |
 With | -0.020 | -0.817, 0.776 | 0.958 |