Table 2.
Age, ethnicity, race, sex, and case definition of cases of Q fever as reported through case report forms (CRFs) and through the Nationally Notifiable Disease Surveillance System (NNDSS), by reporting category, 2000–2012
| Characteristic | CRFs | NNDSS | ||||
|---|---|---|---|---|---|---|
| Q fever, 2000–2007 | Acute Q fever, 2008–2012 | Chronic Q fever, 2008–2012 | Q fever, 2000–2007 | Acute Q fever, 2008–2012 | Chronic Q fever, 2008–2012 | |
| Age | ||||||
| < 4 | 1 (0.6%) | 1 (0.5%) | 3 (0.4%) | 3 (0.6%) | ||
| 5–9 | 1 (0.6%) | 4 (0.5%) | 2 (0.4%) | |||
| 10–19 | 4 (2.4%) | 7 (3.4%) | 1 (1%) | 25 (3.4%) | 10 (1.9%) | |
| 20–29 | 20 (11.8%) | 11 (5.4%) | 8 (8%) | 54 (7.4%) | 50 (9.5%) | 5 (4.5%) |
| 30–39 | 17 (10.1%) | 30 (14.6%) | 12 (12%) | 110 (15%) | 61 (11.6%) | 15 (13.6%) |
| 40–49 | 41 (24.3%) | 46 (22.4%) | 16 (16%) | 170 (23.2%) | 125 (23.9%) | 17 (15.5%) |
| 50–59 | 32 (18.9%) | 45 (22%) | 19 (19%) | 165 (22.5%) | 118 (22.5%) | 24 (21.8%) |
| 60–69 | 21 (12.4%) | 29 (14.1%) | 22 (22%) | 109 (14.9%) | 94 (17.9%) | 24 (21.8%) |
| 70+ | 27 (16%) | 16 (7.8%) | 15 (15%) | 88 (12%) | 58 (11.1%) | 25 (22.7%) |
| Unknown | 5 (3%) | 20 (9.8%) | 7 (7%) | 4 (0.5%) | 3 (0.6%) | |
| Ethnicity | ||||||
| Hispanic | 8 (4.7%) | 36 (17.6%) | 16 (16%) | 69 (9.4%) | 78 (14.9%) | 5 (4.5%) |
| Not Hispanic | 118 (69.8%) | 122 (59.5%) | 63 (63%) | 412 (56.3%) | 294 (56.1%) | 65 (59.1%) |
| Unknown | 43 (25.4%) | 47 (22.9%) | 21 (21%) | 251 (34.3%) | 152 (29%) | 40 (36.4%) |
| Race | ||||||
| American Indian | 1 (0.6%) | 4 (2%) | 2 (2%) | 6 (0.8%) | 6 (1.1%) | 2 (1.8%) |
| Asian | 2 (1.2%) | 3 (1.5%) | 1 (1%) | |||
| Black | 13 (7.7%) | 7 (3.4%) | 6 (6%) | 35 (4.8%) | 16 (3.1%) | 1 (0.9%) |
| White | 128 (75.7%) | 158 (77.1%) | 71 (71%) | 459 (62.7%) | 336 (64.1%) | 70 (63.6%) |
| Unknown | 25 (14.8%) | 33 (16.1%) | 20 (20%) | 232 (31.7%) | 166 (31.7%) | 37 (33.6%) |
| Sex | ||||||
| Female | 45 (26.6%) | 49 (23.9%) | 19 (19%) | 184 (25.1%) | 132 (25.2%) | 23 (20.9%) |
| Male | 121 (71.6%) | 154 (75.1%) | 81 (81%) | 545 (74.5%) | 384 (73.3%) | 86 (78.2%) |
| Unknown | 3 (1.8%) | 2 (1%) | 3 (0.4%) | 8 (1.5%) | 1 (0.9%) | |
| Classification | ||||||
| Confirmed | 41 (24.3%) | 52 (25.4%) | 48 (48%) | 290 (39.6%) | 153 (29.2%) | 64 (58.2%) |
| Probable | 128 (75.7%) | 153 (74.6%) | 52 (52%) | 337 (46%) | 305 (58.2%) | 44 (40%) |
| Unknown | 105 (14.3%) | 66 (12.6%) | 2 (1.8%) | |||