Table 7 Accuracy of laboratory investigations in detecting positive blood cultures among the study group
From: Incidence and risk factors of urinary tract infection in neonatal sepsis
Variable | Sensitivity (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) | Area under the curve (%) | Cutoff point |
|---|---|---|---|---|---|---|
TLC | ||||||
< 4000 | 86.70 | 15 | 40.50 | 62.80 | 43.70 | 3.95 |
> 20,000 | 28.30 | 90 | 18.20 | 23.90 | 20.30 | 19.90 |
Platelet | 71.70 | 42.50 | 64.40 | 49.40 | 58.90 | 101.50 |
I/T ratio | 87.80 | 32.10 | 65.70 | 62.90 | 53.70 | 0.24 |
CRP | 97.60 | 14.30 | 63.10 | 79.90 | 58.70 | 16.20 |
RBS | ||||||
< 40 | 100 | 0 | 100 | 0 | 50 | 38 |
> 180 | 33.30 | 77.50 | 49.70 | 63.50 | 59.80 | 179 |