Modified National Early Warning Score 2, a reliable early warning system for predicting treatment outcomes in patients with emphysematous pyelonephritis

Table 2 Cutoff National Early Warning Score 2 for mortality

Cutoff National Early Warning Score 2 for mortality	Sensitivity % (95%CI)	Specificity % (95%CI)	Positive predictive value % (95%CI)	Negative predictive value % (95%CI)	Accuracy % (95%CI)
≥ 7	100 (63.06-100)	50.92 (42.98-58.82)	9.09 (7.88-10.47)	100 (95.65-100)	53.22 (45.45-60.87)
≥ 8	100 (63.06-100)	58.90 (50.93-66.53)	10.67 (9.04-12.55)	100 (96.23-100)	60.82 (53.07-68.18)
≥ 9	100 (63.06-100)	69.94 (62.27-76.86)	14 (11.44-17.10)	100 (96.82-100)	71.35 (63.94-77.99)
≥ 10	100 (63.06-100)	80.98 (74.10-86.7)	20.51 (15.82-26.16)	100 (97.24-100)	81.87 (75.27-87.34)
≥ 11	100 (63.06-100)	84.66 (78.20-89.82)	25.24 (18.24-31.46)	100 (97.36-100)	85.38 (79.18-90.31)
≥ 12	100 (63.06-100)	86.50 (80.28-91.34)	26.67 (19.78-34.91)	100 (97.42-100)	87.13 (81.17-91.76)
≥ 13	100 (63.06-100)	89.57 (83.83-93.81)	32 (23.08-42.46)	100 (97.51-100)	90.06 (84.56-94.10)
≥ 14	100 (63.06-100)	91.41 (86.01-95.22)	36.36 (25.72-48.53)	100 (97.55-100)	91.81 (86.64-95.45)
≥ 15	87.50 (47.35-99.68)	96.93 (92.99-99)	58.33 (36.23-77.53)	99.37 (96.19-99.9)	96.49 (92.52-98.70)
≥ 16	75 (34.91-96.81)	98.16 (94.72-99.62)	66.67 (37.82-86.8)	98.77 (96.01-99.63)	97.08 (93.31-99.04)
≥ 17	50 (15.7-84.3)	98.77 (95.64-99.85)	66.67 (29.97-90.34)	97.58 (95.27-98.77)	96.49 (92.52-98.7)
≥ 18	25 (3.19-65.09)	100 (97.76-100)	100 (15.81-100)	96.45 (94.79-97.59)	96.49 (92.52-98.7)
≥ 19	12.50 (0.32-52.65)	100 (97.76-100)	100 (2.50-100)	95.88 (94.71-96.8)	95.91 (91.75-98.34)