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Table 4 Prevalence of multidrug resistance among Streptococcus pneumoniae isolates collected during the PROTEKT US study Years 1–4 (2000–2004) according to US region

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

  Proportion of isolates (n [%])
Region Year 1 Year 2 Year 3 Year 4
North-central 727 (34.4) 651 (29.8) 730 (30.1) 599 (30.0)
Northeast 1,064 (28.7) 750 (23.5) 883 (26.0) 670 (24.1)
Northwest 108 (25.6) 120 (22.6) 124 (22.8) 95 (21.9)
South-central 635 (43.6) 498 (37.4) 660 (38.2) 506 (38.0)
Southeast 474 (44.6) 491 (35.3) 487 (33.9) 322 (31.4)
Southwest 481 (35.7) 394 (27.9) 306 (22.4) 161 (17.4)
USA total 3,489 (34.5) 2,904 (28.9) 3,190 (29.3) 2,353 (27.7)