|
Regression model predicting variability in response rates in placebo groups of clinical trials; n = 97 Studies, with prevention trials excluded; formal and diagnostic variables (ICD Coding); italics: different from full model |
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| Beta |
t (DFs = 91) |
p-value |
|
|
|
|||
| Constant |
10.3 |
<0.000001 |
|
| Disorders due to substance abuse (F1) |
-0.31 |
-3.57 |
0.0006 |
| Affective disorders (F3) |
0.37 |
4.49 |
0.00002 |
| Nervous diseases (G) |
-0.20 |
-2.40 |
0.018 |
| Digestive diseases (K) |
0.29 |
3.65 |
0.0004 |
| Diseases of the urigenital system (N) |
0.16 |
2.09 |
0.039 |
Walach et al. BMC Medical Research Methodology 2005 5:26 doi:10.1186/1471-2288-5-26 |
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