TABLE 1

Characteristics of specimen types and subjects from whom noninvasive S. pneumoniae isolates were collected during 2009 to 2012 in the United States

CharacteristicNo. (%) by yrNo. (%) for all yrs
2009201020112012
Age (yrs)
    18–49185 (33.7)241 (35.0)320 (33.9)237 (31.8)983 (33.6)
    50–64178 (32.4)225 (32.7)311 (32.9)265 (35.5)979 (33.4)
    ≥65186 (33.9)222 (32.3)313 (33.2)244 (32.7)965 (33.0)
Census regiona (no. of sites)
    New England (5)88 (16.0)99 (14.4)155 (16.4)105 (14.1)447 (15.3)
    Mid-Atlantic (7)50 (9.1)70 (10.2)53 (5.6)70 (9.4)243 (8.3)
    East North Central (8)98 (17.9)136 (19.8)197 (20.9)154 (20.6)585 (20.0)
    West North Central (5)69 (12.6)59 (8.6)85 (9.0)65 (8.7)278 (9.5)
    South Atlantic (6)61 (11.1)88 (12.8)114 (12.1)66 (8.8)329 (11.2)
    East South Central (5)61 (11.1)77 (11.2)114 (12.1)70 (9.4)322 (11.0)
    West South Central (4)11 (2.0)33 (4.8)33 (3.5)39 (5.2)116 (4.0)
    Mountain (4)39 (7.1)41 (6.0)64 (6.8)78 (10.5)222 (7.6)
    Pacific (6)72 (13.1)85 (12.4)129 (13.7)99 (13.3)385 (13.2)
Specimen
    Lower respiratory tractb498 (90.7)604 (87.8)815 (86.3)630 (84.5)2,547 (87.0)
    Upper respiratory tractc46 (8.4)82 (11.9)128 (13.6)116 (15.5)372 (12.7)
    Other5 (0.9)2 (0.3)1 (0.1)0 (0.0)8 (0.3)
All549 (100.0)688 (100.0)944 (100.0)746 (100.0)2,927 (100.0)
  • a The New England region includes Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont; the Mid-Atlantic region includes New Jersey, New York, and Pennsylvania; the East North Central region includes Illinois, Indiana, Michigan, Ohio, and Wisconsin; the West North Central region includes Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, and South Dakota; the South Atlantic region includes the District of Columbia, Delaware, Florida, Georgia, Maryland, North Carolina, South Carolina, Virginia, and West Virginia; the East South Central region includes Alabama, Kentucky, Mississippi, and Tennessee; the West South Central region includes Arkansas, Louisiana, Oklahoma, and Texas; the Mountain region includes Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, and Wyoming; and the Pacific region includes Alaska, California, Hawaii, Oregon, and Washington.

  • b Most (62.8%; 1,600/2,547) of the specimens consisted of sputum.

  • c The specimens were comprised predominantly of middle ear fluid or sinus secretions.