Table 2 An example of covariance analysis.
From: An efficacy evaluation method for non-normal outcomes in randomized controlled trials
| Â | Degrees of freedom | Sum of squares | Mean square | F-value | P-value |
|---|---|---|---|---|---|
group | 1 | 3.43 | 3.43 | 0.31 | 0.58 |
centre | 7 | 375.73 | 53.68 | 4.80 | <0.001 |
group*centre | 7 | 104.41 | 14.92 | 1.33 | 0.234 |
ADAS1 | 1 | 1439.67 | 1439.67 | 128.79 | <0.001 |
error | 303 | 3387.00 | 11.18 | Â | Â |
Corrected total | 319 | 5204.11 | Â | Â | Â |
