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Analysis of variance for the three planned comparisons
| Source | df | SS | MS | F | P |
| Infection | 3 | 1780.2 | 593.4 | 2.84 | 0.038 |
| Contrast 1 | 1 | 1639.6 | 1639.6 | 7.85 | 0.006 |
| Contrast 2 | 1 | 112.1 | 112.1 | 0.54 | 0.464 |
| Contrast 3 | 1 | 28.5 | 28.5 | 0.14 | 0.712 |
| Error | 396 | 82,729.7 | 208.9 | ||
| Total | 399 | 84,509.9 |
df, degrees of freedom; F, test statistic; MS, mean squares; SS, sums of squares.
