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Table A26–1 Incidence of Streptococcus pneumoniae for Age Groups <5, 5–64, and >65

Age Groups

Population

Incidence rates (per 100,000)

% Distribution of Cases

Cases

LESS THAN 5 YEARS

 

<1

3,963,000

18,167.74

0.1128

719,987

1–4

16,219,000

34,905.47

0.8872

5,661,319

Total

 

2,422.35

1.0000

6,381,306

5–64 YEARS

 

5–14

38,056,000

467.19

0.1676

177,796

15–24

36,263,000

467.19

0.1597

169,419

25–34

41,670,000

467.19

0.1835

194,680

35–44

42,149,000

467.19

0.1856

196,918

45–54

30,224,000

467.19

0.1331

141,205

55–64

21,241,000

852.19

0.1706

181,015

Total

 

402.77

1.0000

1,061,032

GREATER THAN 65 YEARS

 

65–74

18,964,000

 

1,182.19

224,191

75–84

11,088,000

1,182.19

 

131,082

85+

3,598,000

1,182.19

 

42,535

Total

 

151.01

 

397,808

COST INCURRED BY DISEASE

Table A26–3 summarizes the health care costs incurred by S. pneumoniae infections. For the purposes of the calculations in this report, it was assumed that general patterns of health care are the same for each age group in a scenario. Outpatient care for bacteremia/sepsis and for pneumonia was assumed to involve two physician visits, prescription medication, and an inexpensive diagnostic test. Hospitalization costs are also assumed in be incurred for some patients. For more severe cases (e.g., those requiring hospitalization), specialist physicians are included instead of generalists, who would be utilized for less severe infections.

Milder manifestations of S. pneumoniae (e.g., otitis media in children under 5 years of age and sinusitis/bronchitis in people over 5 years of age) were assumed to be associated with costs for general physician visits, prescription mediation, and (in half the cases) a diagnostic procedure (culture).

Acute treatment of meningitis was assumed to require hospitalization, specialist physicians, and expensive diagnostic procedures. It was assumed that a small percentage of patients with meningitis experience lifelong neurologic sequelae requiring multiple visits to a specialist and some sort of physical or other rehabilitative therapies for the disability.



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