Diagnostic accuracy of procalcitonin for overall and complicated acute appendicitis in children: a meta-analysis

Table 2 Characteristics of the four included studies that used PCT to assess pediatric complicated appendicitis

First Author	Year of Publication	Country	AA	CA	Age, years:Mean (range)	Cut-off (ng/ml)	Sensitivity (%)	Specificity (%)	No. of TP	No. of FP	No. of FN	No. of TN
Yuchi [12]	2015	China	38	70	15.2 ± 2.1	0.5	81	82	57	7	13	31
Teresa [5]	2012	Spain	69	42	1.2–17.1	0.18	97	80	67	8	2	34
Chandel [16]	2011	India	12	11	3–15	0.74	100	100	11	0	0	12
Kafetzis [15]	2005	Greece	66	64	9 ± 2.2	0.5	73.0	95.0	47	2	17	64

Abbreviations: PCT procalcitonin, AA acute appendicitis, CA complicated appendicitis, TP true positive, FP false positive, TN true negative, FN false negative

ISSN: 1824-7288