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| Reported to DPSU 1997–2001 | No. | Lumbar puncture performed n (%) | Positive lumbar puncture n (%) | Proved meningitis (%) |
|---|---|---|---|---|
| Early onset | 353 | 132 (37) | 55 (42) | 16 |
| Very early | 268 | 79 (29) | 17 (22) | 6 |
| Late early | 85 | 53 (62) | 38 (72) | 45 |
| Late onset | 77 | 47 (61)* | 41 (87) | 53 |
DPSU, Dutch Paediatric Surveillance Unit, GBS, group B streptococci.
*Cochran‐Armitage test for trend with time of onset, p<0.0001.
