Table 3 Comparison of characteristics between LKD and the other KD patients

Age (months)

53.5 (37.5–69.3)

31.0 (17.0–49.8)

Male, n (%)

51 (59.3%)

202 (63.7%)

Wight (Kg)

16.3 (14.2–19.6)

13.0 (10.5–15.9)

Transfer, n (%)

53 (61.6%)

153 (48.3%)

Neck pain and swelling, n (%)

86 (100.0%)

24 (7.6%)

Conjunctival injection, n (%)

67 (77.9%)

288 (90.9%)

Hosdays (days)

7.0 (7.0–8.0)

6.0 (5.0–8.0)

Incomplete KD, n (%)

8 (9.3%)

17 (5.4%)

Anomalies of the lips and oral mucosa, n (%)

75 (87.2%)

294 (92.7%)

Swelling of extremities, n (%)

36 (41.9%)

182 (57.4%)

Exanthema, n (%)

47 (54.7%)

224 (70.7%)

WBC (× 10⁹/L)

13.6 (11.2–17.7)

14.2 (11.2–17.9)

LYM (× 10⁹/L)

1.8 (1.1–2.5)

2.8 (1.7–4.3)

ANC (× 10⁹/L)

10.7 (8.4–14.8)

9.8 (7.2–13.2)

HB (g/L)

114.5 ± 10.3

111.0 ± 12.1

CRP (mg/L)

92.7 (57.6–121.1)

74.7 (44.2–109.1)

PLT (× 10⁹/L)

314.5 (271.5–353.5)

350 (284.5–429.0)

ALB (g/L)

41.8 ± 7.7

41.3 ± 6.5

ALT (U/L)

27 (13–101.5)

35 (18–118.5)

NT-proBNP (pg/ml)

378 (205–1260)

547 (239–1813)

D-Dimer (ug/ml)

1.3 (0.9–2.1)

1.5 (0.9–2.4)

IVIG resistance, n (%)

5 (15.6%)

27 (84.4%)

CAL, n (%)

19 (22.1%)

88 (27.8%)

Antibiotic, n (%)

63 (74.1%)

215 (68.3%)

Ultrasound

 Maximum lymph node diameter (mm)

23.0 (19.0–29.0)

10.0 (10.0–19.5)

 Bilateral cervical lymphadenopathy, n (%)

63 (73.3%)

264 (83.3%)

Complications

 KDSS, n (%)

3 (3.5%)

8 (2.5%)

 AARS, n (%)

8 (9.3%)

0 (0.0%)

 Parotitis, n (%)

6 (7.0%)

0 (0.0%)

 Retropharyngeal infection, n (%)

1 (1.2%)

0 (0.0%)

 Pulmonary involvements, n (%)

27 (37.5%)

140 (40.9%)