Table 2.
Diphtheria and tetanus antibody levels among children born in 2006–2015 by survey site — Ukraine, 2017
| Antibody levels, IU/mL | Diphtheria | Tetanus | ||||
|---|---|---|---|---|---|---|
| No. | Adjusted % (95% CI) | Median, IU/mL | No. | Adjusted % (95% CI) | Median, IU/mL | |
| Zakarpattya (N = 1,306) | 0.09 | 0.26 | ||||
| <0.01 | 256 | 18.7 (13.0–26.1) | 292 | 21.5 (14.6–30.6) | ||
| 0.01–0.09 | 416 | 31.3 (27.7–35.2) | 23 | 16.9 (13.7–20.6) | ||
| 0.1–0.9 | 427 | 33.8 (28.4–39.6) | 347 | 27.1 (22.9–31.7) | ||
| ≥1.0 | 207 | 16.2 (12.7–20.5) | 435 | 34.5 (28.0–41.7) | ||
| Sumy (N = 1,403) | 0.42 | 1.56 | ||||
| <0.01 | 59 | 4.4 (3.2–6.2) | 59 | 4.4 (3.3–5.8) | ||
| 0.01–0.09 | 261 | 19.3 (16.3–22.7) | 90 | 6.5 (4.6–9.0) | ||
| 0.1–0.9 | 635 | 44.5 (41.1–47.8) | 373 | 26.6 (23.4–30.1) | ||
| >1.0 | 448 | 31.8 (28.6–35.2) | 881 | 62.5 (57.4–67.4) | ||
| Odessa (N = 1,298) | 0.29 | 0.94 | ||||
| <0.01 | 96 | 7.9 (5.8–10.8) | 93 | 7.9 (5.5–11.1) | ||
| 0.01–0.09 | 294 | 22.8 (19.8–26.1) | 145 | 11.5 (9.2–14.2) | ||
| 0.1–0.9 | 579 | 44.2 (40.7–47.9) | 435 | 32.9 (29.1–36.9) | ||
| ≥1.0 | 329 | 25.1 (21.9–28.4) | 625 | 47.8 (43.1–52.5) | ||
| Kyiv City (N = 722) | 0.42 | 1.23 | ||||
| <0.01 | 25 | 3.5 (2.3–5.2) | 30 | 4.3 (3.0–6.2) | ||
| 0.01–0.09 | 128 | 17.3 (15.3–19.5) | 53 | 6.8 (4.8–9.5) | ||
| 0.1–0.9 | 357 | 49.2 (43.7–54.7) | 239 | 32.4 (27.3–38.0) | ||
| ≥1.0 | 212 | 30.0 (27.1–33.1) | 400 | 56.4 (51.1–61.6) | ||
Antibody levels <0.01 IU/mL correspond to no protection, 0.01–0.09 IU/mL – to minimal protection, and ≥0.1 IU/mL to full protection, including 0.1–0.9 IU/mL, linked to shorter-term protection, and ≥1.0 IU/mL, associated with long-term protection