| Factors | DF | MS | F | F0.05 | Sg |
| CDW filler content | 4 | 0.7339 | 26.70 | 2.87 | S |
| Age | 1 | 0.8850 | 32.19 | 4.35 | S |
| CDW filler content - Age | 4 | 0.1837 | 6.68 | 2.87 | S |
| Error | 20 | 0.0275 |
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