Table 4.

Chart for sensitivity and specificity in study population including 95% Fisher confidence interval.

N = 257/300 (85.67%)	White-blood-cell count (*1011/L)			C-reactive protein (mg/L)
	Mean	Range	p	Mean	Range	p
True positive PET/CT	8.59 ± 3.09	2.58–18.38	0.24	60.01 ± 71.44	0.1–313	0.22
False positive PET/CT	10.18 ± 3.46	2.56–17.21	0.24	89.0 ± 66.71	19.1–207	0.22
True negative PET/CT	3.14 ± 4.61	1.78–25.2	0.38	54.69 ± 66.69	0.17–326	0.15
False negative PET/CT	7.90 ± 3.35	2.63–16.68	0.38	48.2 ± 49.37	0.1–163	0.15

Note the high specificity for malignancy despite a lower sensitivity compared to other causes.