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Table 1 Demographics of infants with invasive GBS infection in urban area of South China, 2011–2014

From: Epidemiology of invasive group B streptococcal disease in infants from urban area of South China, 2011–2014

 

Early-onset Disease (n = 49)

Late-onset Disease (n = 21)

Total (n = 70)

Sex (female/male)

16/33

12/9

28/42

Preterm (gestational age < 37 weeks)

7 (14.3%)

4 (19.0%)

11 (15.7%)

Low birth weight (<2500 g)

5 (10.2%)

4 (19.0%)

9 (12.9%)

Bacterial isolation site

 Blood alone

46 (93.9%)

16 (76.2%)

62 (88.6%)

 CSF+blooda

2 (4.1%)

0

2 (2.9%)

 CSF alone

1 (2.0%)

5 (23.8%)b

6 (8.6%)

Incidence (per 1000 live births,95%CI)

0.39 (0.29–0.51)

0.16 (0.11–0.25)

0.55 (0.44–0.69)

Clinical outcomes

 Died

4 (8.2%)

1 (4.8%)

5 (7.1%)

 Survived with sequelae

2 (4.1%)

3 (14.3%)

5 (7.1%)

  1. aCSF cerebrospinal fluid;
  2. bCompared with early-onset disease, Fisher exact test, X2 = 6.3281, P = 0.0119