Table 3. Laboratory results of RPA-KD, KD (i.e., KD without RPI), and bacterial RPA

Variables	RPI-KD		KD		Bacterial RPA		References
Hb (g/dL)	11.6	(n = 10)	11.1	(n = 20)	11.6	(n = 16)	[11]
	11.8	(n = 11)	–		11.8	(n = 36)	[12]
	11.3	(n = 22)	–		11.8	(n = 34)	[13]
WBC (× 109/L)	16.3	(n = 10)	14.9	(n = 20)	20.82)	(n = 16)	[11]
	15.7	(n = 11)	–		16.9	(n = 36)	[12]
	18.0	(n = 22)	–		19.9	(n = 34)	[13]
	20.9	(n = 21)	–		22.3	(n = 18)	[14]
	21.01)	(n = 10)	13.3	(n = 267)	–		[15]
Platelet (× 109/L)	352	(n = 10)	327	(n = 20)	412	(n = 16)	[11]
	308	(n = 11)	–		342	(n = 36)	[12]
	333	(n = 22)	–		394	(n = 34)	[13]
ESR (mm/hr)	64	(n = 10)	55	(n = 20)	66	(n = 16)	[11]
	67	(n = 11)	–		60	(n = 36)	[12]
	85	(n = 22)	–		67	(n = 34)	[13]
CRP (mg/dL)	9.41)	(n = 10)	5.2	(n = 20)	5.8	(n = 16)	[11]
	9.7	(n = 11)	–		9.7	(n = 36)	[12]
	10.1	(n = 22)	–		7.2	(n = 34)	[13]
	11.7	(n = 21)	–		9.9	(n = 18)	[14]
	11.12)	(n = 10)	5.6	(n = 267)	–		[15]
AST (U/L)	662)	(n = 10)	70	(n = 20)	25	(n = 16)	[11]
	26	(n = 11)	–		26	(n = 36)	[12]
	522)	(n = 22)	–		28	(n = 34)	[13]
	27	(n = 21)	–		24	(n = 18)	[14]
ALT (U/L)	911)	(n = 10)	104	(n = 20)	14	(n = 16)	[11]
	13	(n = 11)	–		14	(n = 36)	[12]
	342)	(n = 22)	–		16	(n = 34)	[13]
PCT (ng/mL)	1.2	(n = 10)	2.8	(n = 20)	0.5	(n = 16)	[11]
	0.6	(n = 22)	–		0.4	(n = 34)	[13]
NT-proBNP (ng/L)	248	(n = 10)	175	(n = 20)	–		[11]
Ferritin (ng/mL)	490	(n = 10)	260	(n = 20)	–		[11]
Troponin (ng/mL)	1.9	(n = 10)	4.3	(n = 20)	0.52)	(n = 16)	[11]

P < 0.01,
P < 0.05.
RPI-KD: Kawasaki disease with retropharyngeal inflammation; KD: Kawasaki disease; RPA: retropharyngeal abscess; Hb: hemoglobulin; WBC: white blood cell counts; ESR: erythrocyte sedimentation rate; CRP: C-reactive protein; AST: aspartate aminotransferase; ALT: alanine aminotransferase; PCT: procalcitonin; NT-proBNP: N-terminal pro-brain natriuretic peptide.