Table 1. Open in new tab Demographic and...

					Age
Male sex	18	(51.4)	21	(56.8)	14	(53.9)	18	(50.0)	10	(28.6)	81	(47.9)
Race
White	24	(68.6)	19	(51.4)	17	(65.4)	29	(80.6)	26	(74.3)	115	(68.0)
Black	7	(20.0)	9	(24.3)	2	(7.7)	2	(5.6)	0	(0.0)	20	(11.8)
American Indian/Alaskan Native	3	(8.6)	8	(21.6)	1	(3.8)	0	(0.0)	3	(8.6)	15	(8.9)
Asian	0	(0.0)	0	(0.0)	0	(0.0)	1	(2.8)	0	(0.0)	1	(0.6)
Unknown	1	(2.9)	1	(2.7)	6	(23.1)	4	(11.1)	6	(17.1)	18	(10.7)
Hispanic ethnicity	9	(25.7)	9	(24.3)	6	(23.1)	2	(5.6)	3	(8.6)	29	(17.2)
Presence of ≥1 underlying medical condition	8	(22.9)	11	(29.7)	23	(88.5)	35	(97.2)	30	(85.7)	107	(63.3)
Clinical presentation
Meningitis	25	(71.4)	13	(35.1)	4	(15.4)	1	(2.8)	0	(0.0)	43	(25.4)
Bacteremic pneumonia	2	(5.7)	6	(16.2)	14	(53.9)	27	(75.0)	21	(60.0)	70	(41.4)
Bacteremia	7	(20.0)	15	(40.5)	8	(30.8)	8	(22.2)	14	(40.0)	52	(30.8)
Other^a	1	(2.9)	3	(8.1)	0	(0.0)	0	(0.0)	0	(0.0)	4	(2.4)
Hospitalized	34	(97.1)	35	(94.6)	24	(92.3)	36	(100.0)	33	(94.3)	162	(95.9)
	Age
Characteristics Among Hospitalized Cases	<1 Year (n = 34)		1–4 Years (n = 35)		5–49 Years (n = 24)		50–64 Years (n = 36)		≥65 Years (n = 33)		All Ages (n = 162)
Duration of hospitalization, median (interquartile range)	11	(6–17)	7.5	(5–12)	6	(3.5–10)	6	(4–9)	5	(4–10)	7	(4–12)
Intensive care unit admission	23	(67.7)	10	(28.6)	14	(58.3)	18	(50.0)	12	(36.4)	77	(47.5)
Mechanical ventilation	11	(32.4)	2	(5.7)	7	(29.2)	14	(38.9)	7	(21.2)	41	(25.3)
Died in hospital	1	(2.9)	0	(0.0)	2	(8.3)	3	(8.3)	4	(12.1)	10	(6.2)

Age

Characteristics

<1 Year (n = 35)

1–4 Years (n = 37)

5–49 Years (n = 26)

50–64 Years (n = 36)

≥65 Years (n = 35)

All Ages (n = 169)

No.

(%)

No.

(%)

No.

(%)

No.

(%)

No.

(%)

No.

(%)

Male sex

(51.4)

(56.8)

(53.9)

(50.0)

(28.6)

(47.9)

Race

White

(68.6)

(51.4)

(65.4)

(80.6)

(74.3)

115

(68.0)

Black

(20.0)

(24.3)

(7.7)

(5.6)

(0.0)

(11.8)

American Indian/Alaskan Native

(8.6)

(21.6)

(3.8)

(0.0)

(8.6)

(8.9)

Asian

(0.0)

(2.8)

(0.0)

(0.6)

Unknown

(2.9)

(2.7)

(23.1)

(11.1)

(17.1)

(10.7)

Hispanic ethnicity

(25.7)

(24.3)

(23.1)

(5.6)

(8.6)

(17.2)

Presence of ≥1 underlying medical condition

(22.9)

(29.7)

(88.5)

(97.2)

(85.7)

107

(63.3)

Clinical presentation

Meningitis

(71.4)

(35.1)

(15.4)

(2.8)

(0.0)

(25.4)

Bacteremic pneumonia

(5.7)

(16.2)

(53.9)

(75.0)

(60.0)

(41.4)

Bacteremia

(20.0)

(40.5)

(30.8)

(22.2)

(40.0)

(30.8)

Other^a

(2.9)

(8.1)

(0.0)

(2.4)

Hospitalized

(97.1)

(94.6)

(92.3)

(100.0)

(94.3)

162

(95.9)

Age

Characteristics Among Hospitalized Cases

<1 Year (n = 34)

1–4 Years (n = 35)

5–49 Years (n = 24)

50–64 Years (n = 36)

≥65 Years (n = 33)

All Ages (n = 162)

Duration of hospitalization, median (interquartile range)

(6–17)

7.5

(5–12)

(3.5–10)

(4–9)

(4–10)

(4–12)

Intensive care unit admission

(67.7)

(28.6)

(58.3)

(50.0)

(36.4)

(47.5)

Mechanical ventilation

(32.4)

(5.7)

(29.2)

(38.9)

(21.2)

(25.3)

Died in hospital

(2.9)

(0.0)

(8.3)

(12.1)

(6.2)

					Age
Male sex	18	(51.4)	21	(56.8)	14	(53.9)	18	(50.0)	10	(28.6)	81	(47.9)
Race
White	24	(68.6)	19	(51.4)	17	(65.4)	29	(80.6)	26	(74.3)	115	(68.0)
Black	7	(20.0)	9	(24.3)	2	(7.7)	2	(5.6)	0	(0.0)	20	(11.8)
American Indian/Alaskan Native	3	(8.6)	8	(21.6)	1	(3.8)	0	(0.0)	3	(8.6)	15	(8.9)
Asian	0	(0.0)	0	(0.0)	0	(0.0)	1	(2.8)	0	(0.0)	1	(0.6)
Unknown	1	(2.9)	1	(2.7)	6	(23.1)	4	(11.1)	6	(17.1)	18	(10.7)
Hispanic ethnicity	9	(25.7)	9	(24.3)	6	(23.1)	2	(5.6)	3	(8.6)	29	(17.2)
Presence of ≥1 underlying medical condition	8	(22.9)	11	(29.7)	23	(88.5)	35	(97.2)	30	(85.7)	107	(63.3)
Clinical presentation
Meningitis	25	(71.4)	13	(35.1)	4	(15.4)	1	(2.8)	0	(0.0)	43	(25.4)
Bacteremic pneumonia	2	(5.7)	6	(16.2)	14	(53.9)	27	(75.0)	21	(60.0)	70	(41.4)
Bacteremia	7	(20.0)	15	(40.5)	8	(30.8)	8	(22.2)	14	(40.0)	52	(30.8)
Other^a	1	(2.9)	3	(8.1)	0	(0.0)	0	(0.0)	0	(0.0)	4	(2.4)
Hospitalized	34	(97.1)	35	(94.6)	24	(92.3)	36	(100.0)	33	(94.3)	162	(95.9)
	Age
Characteristics Among Hospitalized Cases	<1 Year (n = 34)		1–4 Years (n = 35)		5–49 Years (n = 24)		50–64 Years (n = 36)		≥65 Years (n = 33)		All Ages (n = 162)
Duration of hospitalization, median (interquartile range)	11	(6–17)	7.5	(5–12)	6	(3.5–10)	6	(4–9)	5	(4–10)	7	(4–12)
Intensive care unit admission	23	(67.7)	10	(28.6)	14	(58.3)	18	(50.0)	12	(36.4)	77	(47.5)
Mechanical ventilation	11	(32.4)	2	(5.7)	7	(29.2)	14	(38.9)	7	(21.2)	41	(25.3)
Died in hospital	1	(2.9)	0	(0.0)	2	(8.3)	3	(8.3)	4	(12.1)	10	(6.2)

Table 1.

Open in new tab

Demographic and Hospitalization Characteristics of Haemophilus influenzae Serotype a Cases, Overall and by Age, 2011–2015

					Age
Characteristics	<1 Year (n = 35)		1–4 Years (n = 37)		5–49 Years (n = 26)		50–64 Years (n = 36)		≥65 Years (n = 35)		All Ages (n = 169)
	No.	(%)	No.	(%)	No.	(%)	No.	(%)	No.	(%)	No.	(%)
Male sex	18	(51.4)	21	(56.8)	14	(53.9)	18	(50.0)	10	(28.6)	81	(47.9)
Race
White	24	(68.6)	19	(51.4)	17	(65.4)	29	(80.6)	26	(74.3)	115	(68.0)
Black	7	(20.0)	9	(24.3)	2	(7.7)	2	(5.6)	0	(0.0)	20	(11.8)
American Indian/Alaskan Native	3	(8.6)	8	(21.6)	1	(3.8)	0	(0.0)	3	(8.6)	15	(8.9)
Asian	0	(0.0)	0	(0.0)	0	(0.0)	1	(2.8)	0	(0.0)	1	(0.6)
Unknown	1	(2.9)	1	(2.7)	6	(23.1)	4	(11.1)	6	(17.1)	18	(10.7)
Hispanic ethnicity	9	(25.7)	9	(24.3)	6	(23.1)	2	(5.6)	3	(8.6)	29	(17.2)
Presence of ≥1 underlying medical condition	8	(22.9)	11	(29.7)	23	(88.5)	35	(97.2)	30	(85.7)	107	(63.3)
Clinical presentation
Meningitis	25	(71.4)	13	(35.1)	4	(15.4)	1	(2.8)	0	(0.0)	43	(25.4)
Bacteremic pneumonia	2	(5.7)	6	(16.2)	14	(53.9)	27	(75.0)	21	(60.0)	70	(41.4)
Bacteremia	7	(20.0)	15	(40.5)	8	(30.8)	8	(22.2)	14	(40.0)	52	(30.8)
Other^a	1	(2.9)	3	(8.1)	0	(0.0)	0	(0.0)	0	(0.0)	4	(2.4)
Hospitalized	34	(97.1)	35	(94.6)	24	(92.3)	36	(100.0)	33	(94.3)	162	(95.9)
	Age
Characteristics Among Hospitalized Cases	<1 Year (n = 34)		1–4 Years (n = 35)		5–49 Years (n = 24)		50–64 Years (n = 36)		≥65 Years (n = 33)		All Ages (n = 162)
Duration of hospitalization, median (interquartile range)	11	(6–17)	7.5	(5–12)	6	(3.5–10)	6	(4–9)	5	(4–10)	7	(4–12)
Intensive care unit admission	23	(67.7)	10	(28.6)	14	(58.3)	18	(50.0)	12	(36.4)	77	(47.5)
Mechanical ventilation	11	(32.4)	2	(5.7)	7	(29.2)	14	(38.9)	7	(21.2)	41	(25.3)
Died in hospital	1	(2.9)	0	(0.0)	2	(8.3)	3	(8.3)	4	(12.1)	10	(6.2)

					Age
Characteristics	<1 Year (n = 35)		1–4 Years (n = 37)		5–49 Years (n = 26)		50–64 Years (n = 36)		≥65 Years (n = 35)		All Ages (n = 169)
	No.	(%)	No.	(%)	No.	(%)	No.	(%)	No.	(%)	No.	(%)
Male sex	18	(51.4)	21	(56.8)	14	(53.9)	18	(50.0)	10	(28.6)	81	(47.9)
Race
White	24	(68.6)	19	(51.4)	17	(65.4)	29	(80.6)	26	(74.3)	115	(68.0)
Black	7	(20.0)	9	(24.3)	2	(7.7)	2	(5.6)	0	(0.0)	20	(11.8)
American Indian/Alaskan Native	3	(8.6)	8	(21.6)	1	(3.8)	0	(0.0)	3	(8.6)	15	(8.9)
Asian	0	(0.0)	0	(0.0)	0	(0.0)	1	(2.8)	0	(0.0)	1	(0.6)
Unknown	1	(2.9)	1	(2.7)	6	(23.1)	4	(11.1)	6	(17.1)	18	(10.7)
Hispanic ethnicity	9	(25.7)	9	(24.3)	6	(23.1)	2	(5.6)	3	(8.6)	29	(17.2)
Presence of ≥1 underlying medical condition	8	(22.9)	11	(29.7)	23	(88.5)	35	(97.2)	30	(85.7)	107	(63.3)
Clinical presentation
Meningitis	25	(71.4)	13	(35.1)	4	(15.4)	1	(2.8)	0	(0.0)	43	(25.4)
Bacteremic pneumonia	2	(5.7)	6	(16.2)	14	(53.9)	27	(75.0)	21	(60.0)	70	(41.4)
Bacteremia	7	(20.0)	15	(40.5)	8	(30.8)	8	(22.2)	14	(40.0)	52	(30.8)
Other^a	1	(2.9)	3	(8.1)	0	(0.0)	0	(0.0)	0	(0.0)	4	(2.4)
Hospitalized	34	(97.1)	35	(94.6)	24	(92.3)	36	(100.0)	33	(94.3)	162	(95.9)
	Age
Characteristics Among Hospitalized Cases	<1 Year (n = 34)		1–4 Years (n = 35)		5–49 Years (n = 24)		50–64 Years (n = 36)		≥65 Years (n = 33)		All Ages (n = 162)
Duration of hospitalization, median (interquartile range)	11	(6–17)	7.5	(5–12)	6	(3.5–10)	6	(4–9)	5	(4–10)	7	(4–12)
Intensive care unit admission	23	(67.7)	10	(28.6)	14	(58.3)	18	(50.0)	12	(36.4)	77	(47.5)
Mechanical ventilation	11	(32.4)	2	(5.7)	7	(29.2)	14	(38.9)	7	(21.2)	41	(25.3)
Died in hospital	1	(2.9)	0	(0.0)	2	(8.3)	3	(8.3)	4	(12.1)	10	(6.2)

^aOther clinical presentations included septic arthritis (n = 4) and abscess (n = 1).

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