Table 3.
Most Common Admission Diagnoses of Hospitalized Pertussis Patients at Enhanced Pertussis Surveillance Sites, United States, 2011–2015
| Admission Diagnosis | All Ages (n = 515) |
By Age Group | |||||
|---|---|---|---|---|---|---|---|
| <2 Months (n = 151) | 2–11 Months (n = 166) | 1–11 Years (n = 58) | 12–20 Years (n = 23) | 21–64 Years (n = 76) | ≥65 Years (n = 41) | ||
| N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | |
| Cough | 202 (39.2) | 56 (37.1) | 68 (41.0) | 21 (36.2) | 9 (39.1) | 33 (43.4) | 15 (36.6) |
| Pertussis or whooping cough | 171 (33.2) | 63 (41.7) | 76 (45.8) | 18 (31.0) | 2 (8.7) | 6 (7.9) | 6 (14.6) |
| Respiratory distress and/or failure | 83 (16.1) | 28 (18.5) | 17 (10.2) | 9 (15.5) | 3 (13.0) | 18 (23.7) | 8 (19.5) |
| Bronchiolitis or bronchitis | 53 (10.3) | 18 (11.9) | 15 (9.0) | 5 (8.6) | 0 (0.0) | 9 (11.8) | 6 (14.6) |
| Pneumonia | 40 (7.7) | 6 (4.0) | 7 (4.2) | 5 (8.6) | 4 (17.4) | 12 (15.8) | 6 (14.6) |
| Hypoxia | 39 (7.6) | 17 (11.3) | 8 (4.8) | 7 (12.1) | 2 (8.7) | 4 (5.3) | 1 (2.4) |
| Asthma and/or chronic obstructive pulmonary disease exacerbationa | 33 (6.4) | 0 (0.0) | 4 (2.4) | 7 (12.1) | 2 (8.7) | 10 (13.2) | 10 (24.4) |
| Cyanosis | 31 (6.0) | 9 (6.0) | 19 (11.5) | 1 (1.7) | 1 (4.4) | 1 (1.3) | 0 (0.0) |
| Underlying medical conditions | 30 (5.8) | 3 (2.0) | 5 (3.0) | 2 (3.5) | 2 (8.7) | 11 (14.5) | 7 (17.1) |
| Apnea | 29 (5.6) | 18 (11.9) | 9 (5.4) | 2 (3.5) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
| Upper respiratory infection | 20 (3.9) | 4 (2.7) | 8 (4.8) | 4 (6.9) | 1 (4.4) | 1 (1.3) | 2 (4.9) |
| Brief resolved unexplained event | 17 (3.3) | 4 (2.7) | 13 (7.8) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
| Fever | 14 (2.7) | 4 (2.7) | 4 (2.4) | 2 (3.5) | 1 (4.4) | 2 (2.6) | 1 (2.4) |
| Dehydration | 12 (2.3) | 2 (1.3) | 3 (1.8) | 4 (6.9) | 2 (8.7) | 0 (0.0) | 1 (2.4) |
| Syncope | 10 (1.9) | 0 (0.0) | 1 (0.6) | 0 (0.0) | 1 (4.5) | 7 (9.2) | 1 (2.4) |
Numbers do not add up to 100% as multiple admission diagnoses per patient are possible.
aChronic obstructive pulmonary disease is an admission diagnosis only in persons aged ≥21 years.