Haematological                             Sensitivity    Specificity       PPV          NPV Parameters                                        (%)            (%)               (%)          (%) Band Band forms                                          87.6             100.0           100.0          91.9 Mini-ESR                                          75.7             48.1              51.0           73.5 Platelet count <100 X109/L                 18.9             88.2              53.3           60.4 TLC > 20 X109/ L                              10.5            88.9             38.1          60.6 TLC < 5 X 109/L                                 9.9             98.1               78.9          60.6 Mini-ESR+ Band forms                         95.9             48.1              56.8          94.2 Mini-ESR + TLC > 20 X 109/L            86.0             41.9              50.8          80.9 Mini-ESR + Platelet count ( < 100 X 109/L)                                    81.1             44.3             50.9          76.6 Mini-ESR + TLC < 5 X 109/L               74.4              43.9             35.8         80.4 Key: PPV= Positive predictive value NPV= Negative predictive value TLC= Total leukocyte count

Table 2: Sensitivity, Specificity, Positive and Negative Predictive Values of Mini- ESR in isolation and in combination with some Haematological Parameters using Blood Culture as Gold Standard.