Table 2. Age-dependent incidence rates and cumulative incidence for participants in study of seroincidence of enteric fever, Juba, South Sudan, 2020*.
| Age group, y | Seroincidence, cases/100 person-years (95% CI) | 2-year cumulative incidence, % (IQR) | 4-year cumulative incidence, % (IQR) |
|---|---|---|---|
| 1–3 | 42.5 (38.0–59.0) | 53.6 (44.5–74.9) | 78.5 (69.2–93.7) |
| 4–6 | 32.1 (29.7–40.1) | 56.6 (34.7–68.5) | 81.2 (57.4–90.0) |
| 7–9 | 29.2 (27.3–35.6) | 49.3 (39.9–59.1) | 74.3 (63.8–83.3) |
| 10–14 | 24.8 (23.6–28.8) | 45.1 (30.9–58.4) | 69.9 (52.2–82.7) |
| 15–24 | 28.3 (24.7–41.9) | 42.8 (27.2–61.6) | 67.3 (47.0–85.3) |
| 25–34 | 28.8 (26.7–35.9) | 51.7 (35.7–66.5) | 76.7 (58.6–88.8) |
| 35–44 | 40.8 (36.0–58.5) | 57.5 (49.8–69.5) | 82.0 (74.8–90.7) |
|
>45 |
34.0 (30.6–46.2) |
53.0 (40.9–69.1) |
77.9 (65.1–90.5) |
| Overall | 29.8 (27.6–32.2) | 48.9 (31.9–64.3) | 73.8 (53.7–87.3) |
*IQR, interquartile range.