Comparison of culture status at 36 and 48 hours in relation to eventual status
| (a) All positive cultures (those positive after 72 hours classified as negative) | ||
| Positive at 36 hours | Negative at 36 hours | |
| Positive | 347 | 57 |
| Negative | 0 | 1829 |
| Positive at 48 hours | Negative at 48 hours | |
| Positive | 388 | 16 |
| Negative | 0 | 1829 |
| (b) All definite bacterial pathogens and possible bacterial pathogens (contaminants reclassified as negative; fungal cultures removed from analysis) | ||
| Positive at 36 hours | Negative at 36 hours | |
| Positive | 323 | 40 |
| Negative | 0 | 1838 |
| Positive at 48 hours | Negative at 48 hours | |
| Positive | 351 | 12 |
| Negative | 0 | 1838 |
| (c) Definite bacterial pathogens only (contaminants reclassified as negative; fungal cultures and possible bacterial pathogens removed from analysis) | ||
| Positive at 36 hours | Negative at 36 hours | |
| Positive | 39 | 4 |
| Negative | 0 | 1838 |
| Positive at 48 hours | Negative at 48 hours | |
| Positive | 40 | 3 |
| Negative | 0 | 1838 |