Table 2.

Positive predictive values of 90% and 95% of sIgE levels for a positive challenge.

Author, Year	Age	90%	95%	Method
Sampson and Ho, 1997 [29]	5.2 years	23 kU/L	32 kU/L	CAP system FEIA
Garcia–Ara et al., 2001 [30]	4.8 months	2.5 kU/L	5 kU/L	CAP system FEIA
Sampson, 2001 [31]	3.8 years	15 kU/L	32 kU/L	CAP system FEIA
Garcia–Ara et al., 2004 [32]	13–18 months	1.5 kU/L	2.7 kU/L	CAP system FEIA
	19–24 months	6 kU/L	9 kU/L
	25–36 months	14 kU/L	24 kU/L
Celik–Bilgili et al., 2005 [33]	<1 year	25.8 kU/L		CAP system FEIA
Komata et al., 2007 [25]	<1 year		5.8 kU/L	CAP system FEIA
	1 year		38.6 kU/L
	2 years		57.3 kU/L
Martorell et al., 2008 [34]	12 months		5.8 kU/L	CAP system FEIA
	18 months		9.8 kU/L
	24 months		27.5 kU/L
	36 months		7.4 kU/L
	48 months		5 kU/L
Van der Gutgen et al., 2008 [35]	<2.5 years	5 kU/L	7.5 kU/L	CAP system FEIA
Ott. et al., 2008 [36]		52.7 kU/L	66.9 kU/L	CAP system FEIA