Table 1.
Demographic Characteristics of Patients With IPD in ABCs Data for Tennessee, 1998–2013
| Characteristic | Persons With IPD, No. (%)a |
||
|---|---|---|---|
| All (n = 8383) | Male (n = 4416) | Female (n = 3967) | |
| Age, mean (IQR), y | 48 (32–69) | 45 (28–64) | 51 (36–73) |
| Race | |||
| Black | 2945 (35) | 1599 (36) | 1346 (34) |
| White | 5121 (61) | 2638 (60) | 2483 (63) |
| Other/unknown | 317 (4) | 179 (4) | 138 (3) |
| Age group, y | |||
| <2 | 969 (12) | 579 (13) | 390 (10) |
| 2–17 | 653 (8) | 383 (9) | 270 (7) |
| 18–39 | 1053 (13) | 581 (13) | 472 (12) |
| 40–64 | 3229 (39) | 1809 (41) | 1420 (36) |
| 65–74 | 1029 (12) | 499 (11) | 530 (13) |
| ≥75 | 1450 (17) | 565 (13) | 885 (22) |
| Clinical presentationb | |||
| Isolated bacteremia | 1562 (19) | 847 (19) | 715 (18) |
| Bacteremic pneumonia | 5563 (66) | 2901 (66) | 2662 (67) |
| Meningitis | 491 (6) | 260 (6) | 231 (6) |
| Other | 1199 (14) | 639 (14) | 560 (14) |
| Comorbid conditions | |||
| Chronic lung disease | 1626 (19) | 764 (17) | 862 (22) |
| Cancer | 430 (5) | 245 (6) | 185 (5) |
| Chronic heart disease | 711 (8) | 306 (7) | 405 (10) |
| HIV/AIDS | 551 (7) | 342 (8) | 209 (5) |
| Other immunodeficiency | 446 (5) | 231 (5) | 215 (5) |
| History of smoking | 1698 (20) | 954 (22) | 744 (19) |
| Chronic renal disease | 532 (6) | 288 (7) | 244 (6) |
| ≥1 comorbid condition | 4099 (49) | 2143 (49) | 1966 (50) |
Abbreviations: ABCs, Active Bacterial Core surveillance; HIV, human immunodeficiency virus; IPD, invasive pneumococcal disease; IQR, interquartile range.
a Data represent No. (%) unless otherwise specified.
b Isolated bacteremia was defined as a positive blood culture and no other signs of focal infection. Other clinical syndrome categories were not considered mutually exclusive.