]. The highest value of sensitivity plus specificity was used to determine the optimal cut-off score. Results Descriptive analyses for PCL-5 items indicated positive skewness and leptokurtic (Table 2). The item-total correlation contained no negative values, indicating that the items were assessing...
The optimum cut-off score was found to be ≥33, a value which gave us a sensitivity of 74.5% (95%CI 60.4–85.7) and a specificity of 70.6% (95%CI 62.7–77.7). There was a difference after stratification according to HIV status [sensitivity = 78.6% (95%CI 59.0–91.7) and speci...