Table 1 Patient demographic information and characteristics stratified by HRV status

Age of onset (months)

21.12 ± 7.44

21.37 ± 8.19

21.00 ± 6.93

0.824

Female, n (%)

33 (64.7%)

18 (66.7%)

14 (63.6%)

0.825

Clinical presentation

 Vomiting, (times/day)

4 ± 2

4 ± 2

4 ± 3

0.953

 Diarrhea (times/day)

3.0 (2.0, 4.0)

3.0 (1.8, 4.0)

3.0 (2.0, 4.8)

0.937

 Duration of convulsion (min)

2.0 (1.0, 3.0)

2.0 (1, 3.5)

2.0 (1.0, 3.0)

0.853

 Interval between diagnosis of BCWG and convulsion (days)

2.0 (1.0, 2.0)

2.0 (1.0, 2.0)

1.0 (0.5, 2.5)

0.307

 Duration of hospital stay (days)

7.2 ± 3.1

8.0 ± 3.2

6.5 ± 2.6

0.093

Routine blood test laboratory results

 pH

7.34 ± 0.06

7.33 ± 0.06

7.35 ± 0.07

0.311

 PCO₂ (mmHg)

33.37 ± 5.94

31.55 ± 6.02

34.78 ± 5.30

0.102

 HCO₃⁻ (mmol/L)

17.82 ± 3.63

16.67 ± 2.97

18.83 ± 3.99

0.024*

 BE (mmol/L)

-6.87 ± 4.13

-7.85 ± 3.64

-6.08 ± 4.56

0.150

 Na⁺(mmol/L)

135.0 (133.8,136.0)

135.0 (133.2, 136.0)

134.8 (133.88, 135.93)

0.695

 K⁺ (mmol/L)

4.08 ± 0.45

4.09 ± 0.50

4.09 ± 0.41

0.943

 Cl⁻ (mmol/L)

102.0 (99.0, 103.0)

102.0 (102.0, 103.0)

100.2 (98.8, 102.0)

0.033*

 Ca²⁺ (mmol/L)

1.25 ± 0.68

1.27 ± 0.06

1.23 ± 0.07

0.037*

 Glucose (mmol/L)

4.10 (3.70,4.63)

4.10 (3.70, 4.60)

4.10 (3.75, 4.75)

0.479

 Lac (mmol/L)

1.60 ± 0.82

1.61 ± 0.81

1.59 ± 0.84

0.789

 CK (U/L)

99.0

(70.5, 126.5)

94.0

(69.5, 142.0)

104.0

(69.5, 126.5)

0.910

 CKMB (U/L)

51.0

(35.7, 80.3)

60.9 (45.2, 91.4)

46.0 (31.8, 64.3)

0.036*

 WBC (× 10⁹/L)

7.5 ± 3.0

7.9 ± 2.9

7.2 ± 3.1

0.294

 NE (%)

0.51 ± 0.19

0.56 ± 0.20

0.45 ± 0.17

0.051

 LY (%)

0.41 ± 0.18

0.36 ± 0.18

0.45 ± 0.17

0.057

 AG (mmol/L)

20.94 (18.19, 23.68)

20.94 (19.24, 23.19)

21.30 (17.79, 25.64)

0.769

 CRP (mg/dL)

2.8 9 ± 3.51

2.96 ± 1.93

2.67 ± 2.06

0.304