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Table 4 Diagnostic performance and characteristics of COVID-19 Life Events—Anxiety Inventory

From: COVID-19 Life Events-Anxiety Inventory (C-19LAI): development, reliability, and validity study on Egyptian population

Categories N AUC SE p value 95% CI Cut off
Total cases 500 0.826 0.038 <0.001* 0.752−0.901 ≥49.0
Gender Male 182 0.886 0.047 <0.001* 0.795−0.977 ≥49.0
Female 318 0.797 0.054 <0.001* 0.691−0.902 ≥47.0
Diagnostic characteristics
Characters Male ≥49.0 Female ≥47.0 Both together
Male ≥49.0
Female ≥47.0
Value 95% CI Value 95% CI Value 95% CI
Sensitivity 68.4% 60.9%–75.2% 76.6% 71.4%–81.3% 73.6% 69.4%–77.5%
Specificity 100% 63.1%–100% 78.9% 54.4%–93.9% 85.2% 66.3%–95.8%
DA 69.8% 62.5%–76.4% 76.7% 71.7%–81.3% 74.2% 70.1%–78.0%
YI 68.4% 61.5%–75.3% 55.5% 36.6%–74.5% 58.8% 44.8%–72.7%
PPV 100% 96.9%–100% 98.3% 95.7%–99.5% 98.9% 97.1%–99.7%
NPV 12.7% 5.6%–23.5% 17.6% 10.2%–27.4% 15.5% 10.1%–22.4%
LR+ >100.0 >100–>100 3.64 1.52–8.71 4.97 2.01–12.29
LR- 0.32 0.25–0.39 0.30 0.22–0.40 0.31 0.25–0.39
LR >100.0 >100–>100 12.27 3.94–38.17 16.01 5.43–47.20
Kappa 0.160 0.059–0.260 0.211 0.107–0.316 0.189 0.114–0.263
  1. AUC area under curve, SE standard error, CI confidence interval, YI Youden’s index, DA diagnostic accuracy, PPV positive predictive value, NPV negative predictive value, LR+ positive likelihood ratio, LR− negative likelihood ratio, LR diagnostic odds ratio
  2. *Significant