Table 1. Characteristics of San Francisco General Hospital staff in a study of antibody responses to Pneumocystis jirovecii, San Francisco, California, USA, 2007–2009*.
| Characteristic | Total no. (%), N = 115 | Clinical, no. (%), n = 99 | Nonclinical, no. (%), n = 16 | p value |
|---|---|---|---|---|
| Demographic | ||||
| Mean age ± SD, y | 39.5 ± 12.1 | 39.0 ± 12.4 | 42.8 ± 9.7 | 0.25 |
| Sex | ||||
| F | 66 (57.4) | 56 (56.6) | 10 (62.5) | Ref |
| M | 49 (42.6) | 43 (43.4) | 6 (37.5) | 0.66 |
| Race: | ||||
| White/Caucasian | 70 (60.9) | 59 (59.6) | 11 (68.8) | Ref |
| Asian | 30 (26.1) | 28 (28.3) | 2 (12.5) | 0.14 |
| Black/African American | 3 (2.6) | 2 (2.0) | 1 (6.3) | 0.32 |
| Multiple/other | 12 (10.4) | 10 (10.1) | 2 (12.5) | 0.95 |
| Ethnicity | ||||
| Hispanic/Latino | 17 (14.8) | 13 (13.1) | 4 (25.0) | 0.25 |
| Health condition | ||||
| Ever smoked | 39 (33.9) | 31 (31.3) | 8 (50.0) | 0.14 |
| Lung condition | 19 (16.5) | 14 (14.1) | 5 (31.3) | 0.14 |
| Immune condition | 8 (7.0) | 4 (4.0) | 4 (25.0) | 0.01 |
| Professional | ||||
| Department/Division: | ||||
| HIV/AIDS | 52 (45.2) | 44 (44.4) | 8 (50.0) | Ref |
| Pulmonary and Critical Care Medicine | 30 (26.1) | 27 (27.3) | 3 (18.8) | 0.49 |
| Medicine | 27 (23.5) | 23 (23.2) | 4 (25.0) | 0.90 |
| Other | 6 (5.2) | 5 (5.1) | 1 (6.3) | 0.81 |
| Ever exposed to PCP patient | 79 (68.7) | 77 (77.8) | 2 (12.5) | <0.001 |
*Ref., reference category; PCP, Pneumocystis jirovecii pneumonia.