Table 2:

Characteristics of 36 Children with Invasive Haemophilus influenzae type a (Hia) Disease in Alaska, 2002–2014

Characteristic	Value* (n=36)
Age, median months (range)	7 (3–98)
Male sex	24 (67%)
American Indian / Alaska Native	34 (94%)
Resident in remote village	34 (94%)
Medical history
Underlying illness†	11 (31%)
Preterm birth (<37 weeks)	3‡ (8%)
Onset to presentation, median days (range)	1 (0–10)
Specimen Source
Blood only	16 (44%)
lood and CSF	11 (30%)
lood and joint	2 (6%)
CSF only	2 (6%)
Joint only	2 (6%)
Other source§	3 (8%)
Diagnosis¶
Meningitis	15 (42%)
Pneumonia	10 (28%)
Bone or joint infection	6 (17%)
Soft tissue collection	4 (11%)
Unknown source of infection	4 (11%)

^*Data are no. (%) of children, unless otherwise indicated.

^†Defined as any chronic illness listed at the time of clinical presentation

^‡Born ≥35 weeks gestation

^§Aspiration from soft tissue collection (n=1), pleural fluid (n=1), lung tissue at autopsy (n=1)

^¶Some cases had overlapping diagnoses of meningitis with pneumonia (n=1), meningitis with bone or joint infection (n=1), or pneumonia with bone or joint infection (n=1)