Table 1.
Distribution of Study Characteristics for 50 045 Subjects With (Cases) or Without (Controls) Staphylococcus aureus Infection in the Primary Phenotype Analysis Data Set
| Characteristic | Cases, No. (%) | Controls, No. (%) |
|---|---|---|
| Sex | ||
| Female | 2315 (49) | 23 322 (51) |
| Male | 2386 (51) | 22 022 (49) |
| Age at specimen collection date, y | ||
| 20–24 | 16 (<1) | 171 (<1) |
| 25–29 | 19 (<1) | 214 (<1) |
| 30–34 | 44 (1) | 446 (1) |
| 35–39 | 82 (2) | 822 (2) |
| 40–44 | 112 (2) | 1067 (2) |
| 45–49 | 194 (4) | 1892 (4) |
| 50–54 | 308 (7) | 3069 (7) |
| 55–59 | 461 (10) | 4625 (10) |
| 60–64 | 715 (15) | 7079 (16) |
| 65–69 | 666 (14) | 6654 (15) |
| 70–74 | 607 (13) | 6134 (14) |
| 75–79 | 629 (13) | 6133 (14) |
| ≥80 | 848 (18) | 7038 (15) |
| History of diabetes | ||
| Yes | 705 (15) | 5895 (13) |
| No | 3996 (85) | 39 449 (87) |
| History of cancer | ||
| Yes | 799 (17) | 7255 (16) |
| No | 3902 (83) | 38 089 (84) |
| HIV infected | ||
| Yes | 66 (1.4) | 136 (0.3) |
| No | 4635 (98.6) | 45 208 (99.7) |
| Source of S. aureus | ||
| Blood culture | 141 (3) | … |
| Cerebrospinal fluid or other fluid | 141 (3) | … |
| Urine culture | 282 (6) | … |
| Respiratory culture | 329 (7) | … |
| Tissue/biopsy culture | 940 (20) | … |
| Miscellaneous bacterial culture | 2868 (61) | … |
| Overall | 4701 (100) | 45 344 (100) |
Abbreviation: HIV, human immunodeficiency virus.