Table 1 Demographics and clinical characteristics of patients with invasive SA infections

Patients

163

71 (43.6)

92 (56.4)

1.0

Gender

Male

99 (60.7)

37 (52.1)

62 (67.4)

0.048

Female

64 (39.3)

34 (47.9)

30 (32.6)

Age-Median (month, IQR^a)

6 (35.23)

8 (35.33)

6 (32.75)

0.397

 <=1 mo

51 (31.3)

20 (28.1)

31 (33.7)

0.451

1 mo–1 yr

54 (33.1)

26 (36.6)

28 (30.4)

0.593

1 yr–3 yr

25 (15.3)

15 (21.2)

10 (10.9)

0.072

3 yr–14 yr

33 (20.3)

10 (14.1)

23 (25)

0.086

Area

Rural

90 (55.2)

38 (53.5)

52 (56.5)

0.702

Urban

73 (44.8)

33 (46.5)

40 (43.5)

Risk factors ^b:

33 (20.2)

23 (32.4)

10 (10.9)

0.001

history in the past 1 yr of

 Hospitalization

21

16

5

0.001

 Surgery

6

3

3

0.336

 Trauma or scalds

3

1

2

0.212

 Endotracheal intubation

4

3

1

1.0

Congenital heart disease

4

2

2

0.567

Other congenital diseases^c

3

2

1

1.00

Presenting symptoms

 Fever

134 (82.2)

60 (84.5)

74 (80.4)

0.5

 Hypothermia

4 (2.5)

2 (2.8)

2 (2.2)

1.00

 Fever days-Median (IQR)

5.5 (7)

6.5 (7)

5 (6)

0.76

 Shock

4 (2.5)

2 (2.8)

2 (2.2)

1.00

 Coma

2 (1.2)

1 (1.4)

1 (1.1)

1.00

Laboratory examination

White cell count-Median (10⁹/L IQR)

17.35 (8.47)

18.71 (9.41)

16.41 (9.52)

0.72

Neutrophil count-Median (IQR)

10.46 (7.37)

11.58 (6.44)

10.74 (7.18)

0.81

Thrombocytopenia (<100 × 10⁹/L)

12 (7.4)

5 (7)

7 (7.6)

0.89

C-reactive protein-Median (mg/L, IQR)

47.9 (19.5)

46.7 (21.3)

48.5 (19.3)

0.92

PRISM score Median (IQR)

2 (6)

2 (6)

2 (6)

0.48

Hospitalization

hospital days-median (IQR)

15 (7)

17 (8)

14.5 (7)

0.168

Intensive care unit (ICU) admission

76 (46.6)

34 (47.9)

42 (45.7)

0.777

ICU days-Median (IQR)

9 (4)

8 (5)

9.5 (4)

0.786