Table 1.
Demographic characteristics of the pertussis diagnosed and undiagnosed episodes and ARD episodes.
| Identified undiagnosed/(i.e., algorithm identified) pertussis episodes (0.5 threshold) |
Acute respiratory disease episodes – model input |
Diagnosed pertussis episodes |
||||
|---|---|---|---|---|---|---|
| Number of episodes | Share, % | Number of episodes | Share, % | Number of episodes | Share, % | |
| Sex | ||||||
| Female | 685871 | 65.08 | 11583310 | 62.36 | 9022 | 64.05 |
| Male | 368075 | 34.92 | 6990186 | 37.64 | 5052 | 35.87 |
| Unknown | 12 | 0.09 | ||||
| Age at ID | ||||||
| Mean (SD) | 45 (20) | 46 (21) | 48 (25) | |||
| Min | 11 | 11 | 11 | |||
| Median (Q1-Q3) | 45 (28–61) | 46 (28–62) | 50 (23–72) | |||
| Max | 89 | 89 | 89 | |||
| Age group at ID | ||||||
| 11–18 | 128213 | 12.17 | 2359338 | 12.70 | 2884 | 20.47 |
| 19–44 | 397650 | 37.73 | 6519020 | 35.10 | 3302 | 23.44 |
| 45–64 | 326783 | 31.01 | 5768851 | 31.06 | 2904 | 20.62 |
| >64 | 201300 | 19.10 | 3926287 | 21.14 | 4996 | 35.47 |
| Race | ||||||
| African American | 114768 | 10.89 | 1721077 | 9.27 | 744 | 5.28 |
| Asian | 18355 | 1.74 | 310840 | 1.67 | 249 | 1.77 |
| Caucasian | 852031 | 80.84 | 15244663 | 82.08 | 11926 | 84.67 |
| Other/Unknown | 68792 | 6.53 | 1296916 | 6.98 | 1167 | 8.28 |
| Ethnicity | ||||||
| Hispanic | 60077 | 5.70 | 967861 | 5.21 | 732 | 5.20 |
| Not Hispanic | 925456 | 87.81 | 16360523 | 88.09 | 11774 | 83.59 |
| Unknown | 68413 | 6.49 | 1245112 | 6.70 | 1580 | 11.22 |
| Region | ||||||
| Midwest | 543869 | 51.60 | 9473718 | 51.01 | 4887 | 34.69 |
| Northeast | 86687 | 8.22 | 1431360 | 7.71 | 1886 | 13.39 |
| South | 275513 | 26.14 | 5361384 | 28.87 | 5342 | 37.92 |
| West | 98514 | 9.35 | 1464343 | 7.88 | 1428 | 10.14 |
| Other/Unknown | 49363 | 4.68 | 842691 | 4.54 | 543 | 3.85 |
ID, index date.