Table 3: Accuracy parameters between level 1 (platelets from 50,000 to 75,000 dL) and level 2 (platelets from 75,000 to 150,000 dL) using Wilson score.

Parameter Estimate Lower-upper 95% confidence interval Sensitivity 39.67% (31.4, 48.57) Specificity 94.39% (88.3, 97.4) Positive predictive value 88.89% (77.81, 94.81) Negative predictive value 58.05% (50.62, 65.13) Diagnostic accuracy 65.35% (58.97, 71.23)