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Table 1 Patient demographics and culture source of Streptococcus pneumoniae isolates collected during the PROTEKT US study Years 1–4 (2000–2004)

From: Trends in antibacterial resistance among Streptococcus pneumoniae isolated in the USA: update from PROTEKT US Years 1–4

 

No. of isolates (%)

 

Year 1 (n = 10,103)

Year 2 (n = 10,012)

Year 3 (n = 10,886)

Year 4 (n = 8,494)

Age (years)

    

   0–2

1,822 (18.0)

1,556 (15.5)

1,587 (14.6)

1,213 (14.3)

   3–14

1,105 (11.0)

1,125 (11.2)

1,324 (12.2)

973 (11.5)

   15–64

4,144 (41.0)

4,058 (40.5)

4,617 (42.4)

3,751 (44.2)

   > 64

2,761 (27.3)

3,067 (30.6)

3,091 (28.4)

2,378 (28.0)

   NR

271 (2.7)

206 (2.1)

267 (2.5)

179 (2.1)

Gender

    

   Male

5,735 (56.8)

5,678 (56.7)

6,013 (55.2)

4,755 (56.0)

   Female

4,252 (42.1)

4,218 (42.1)

4,757 (43.7)

3,575 (42.1)

   NR

116 (1.1)

116 (1.2)

116 (1.1)

164 (1.9)

Source*

    

   Blood

3,220 (31.9)

2,717 (27.1)

3,016 (27.7)

2,398 (28.2)

   BAL

968 (9.6)

1,019 (10.2)

1,197 (11.0)

993 (11.7)

   Sputum

3,736 (37.0)

4,115 (41.1)

4,595 (42.2)

3,428 (40.4)

   Sinus

388 (3.8)

390 (3.9)

506 (4.6)

446 (5.3)

   Ear

858 (8.5)

620 (6.2)

813 (7.5)

556 (6.5)

   MEF

68 (0.7)

69 (0.7)

91 (0.8)

88 (1.0)

   Nasopharyngeal

632 (6.3)

573 (5.7)

649 (6.0)

540 (6.4)

   Throat

48 (0.5)

28 (0.3)

--

6 (0.1)

Patient status

    

   Inpatient

4,612 (45.6)

5,359 (53.5)

6,068 (55.7)

4,599 (54.1)

   Outpatient

5,287 (52.3)

4,349 (43.4)

4,818 (44.3)

3,776 (44.5)

   NR

204 (2.0)

304 (3.0)

--

119 (1.4)

  1. *Where isolate source was specified
  2. BAL, bronchoalveolar fluid; MEF, middle-ear fluid; NR, not recorded.