CRP levels (mg/L) | Infections during SE (n = 36) | No infections(n = 103) | Sensitivity | Specificity | PPV | NPV | LR+ | LR- | |||
SD or range | SD or range | ||||||||||
CRP on day 1 of SE | mean | 40.80 | 44.54 | 32.35 | 50.09 | 70.0% | 53.4% | 30.4% | 85.9% | 1.5 | 1.8 |
median | 28.35 | 0.6 - 178.8 | 7.60 | 0.3 - 225.5 | |||||||
CRP on day 2 of SE | mean | 77.17 | 70.13 | 42.90 | 53.54 | 86.7% | 37.9% | 28.9% | 90.7% | 1.4 | 0.4 |
median | 55.20 | 0.6 - 245.0 | 22.00 | 0.5 - 233.5 | |||||||
CRP on day 3 of SE | mean | 116.04 | 98.01 | 62.39 | 67.99 | 93.3% | 60.2% | 40.6% | 96.9% | 2.3 | 0.1 |
median | 92.35 | 1.0 - 383.8 | 36.95 | 1.2 - 256.7 | |||||||
White blood cell levels (x10 9 /L) | Infections during SE (n = 36) | No infections (n = 103) | Sensitivity | Specificity | PPV | NPV | LR+ | LR- | |||
SD or range | SD or range | ||||||||||
WBC on day 1 of SE | mean | 12.23 | 6.44 | 10.71 | 5.05 | 72.5% | 51.5% | 36.7% | 82.8% | 1.5 | 0.5 |
median | 10.50 | 2.8 - 26.4 | 10.00 | 1.2 - 32.7 | |||||||
WBC on day 2 of SE | mean | 9.75 | 5.09 | 10.62 | 5.68 | 36.7% | 55.3% | 19.3% | 75.0% | 0.8 | 1.1 |
median | 9.45 | 1.6 - 29.7 | 9.80 | 1.0 - 34.4 | |||||||
WBC on day 3 of SE | mean | 9.52 | 5.00 | 9.64 | 4.64 | 33.3% | 63.1% | 20.8% | 76.5% | 0.9 | 1.1 |
median | 8.85 | 3.0 - 26.0 | 8.40 | 0.8 - 23.3 | |||||||
Association with infections during SE (Infections during SE vs. no infections during SE) (n = 160) | |||||||||||
Marker | Linear change with time | OR* | 95% CI | p-value | |||||||
CRP over time | Change from day 1 to 3 (mg/L) | 1.018 | 1.007-1.029 | 0.0012 | |||||||
WBC over time | Change from day 1 to 3 (x109/L) | 0.754 | 0.603-0.944 | 0.0137 |