Table 2: Accuracy parameters between level 1 (platelets from 25,000 to 50,000 dL) and level 2 (platelets from 50,000 to 75,000 dL) using Wilson score.

Parameter Estimate Lower-upper 95% confidence interval Sensitivity 77.69% (69.48, 84.19) Specificity 50.47% (41.14, 59.76) Positive predictive value 63.95% (55.92, 71.26) Negative predictive value 66.67% (55.85, 75.97) Diagnostic accuracy 64.91% (58.52, 70.81)