Table 4.

Seroprevalence of diphtheria and tetanus antibody levels ≥0.1 IU/mL among children born in 2006–2015 by survey site, age group, and the number of diphtheria and tetanus-containing vaccine (DTCV) doses received — Ukraine, 2017

Variables	DTCV doses received	Children tested, n	Diphtheria antibodies ≥0.1 IU/mL		Tetanus antibodies ≥0.1 IU/mL
			Adjusted % (95% CI)	p value	Adjusted % (95% CI)	p value
Zakarpattya
Born in 2006–2010	<3 doses	124	31.1 (15.5–46.8)	<0.001	44.4 (26.7–62.2)	<0.001
	3 doses	102	45.7 (33.7–57.7)		58.6 (43.7–73.5)
	4 doses	327	47.8 (38.7–56.9)		60.5 (51.5–69.5)
	5 doses	237	60.9 (46.7–75.1)		72.7 (59.6–85.8)
Born in 2011–2015	<3 doses	189	43.0 (32.0–53.9)	<0.001	56.5 (45.2–67.9)	<0.001
	3 doses	122	43.4 (30.7–56.1)		53.2 (40.2–66.3)
	4 doses	182	63.1 (52.3–74.0)		71.5 (60.5–82.5)
	5 doses	23	81.7 (64.0–99.4)		87.9 (41.8–98.7)
Sumy
Born in 2006–2010	<3 doses	59	66.6 (46.0–87.2)	0.064	75.6 (62.5–88.8)	0.023
	3 doses	65	75.3 (62.1–88.5)		85.9 (77.0–94.8)
	4 doses	234	79.3 (74.8–83.8)		94.8 (91.3–98.3)
	5 doses	477	89.4 (86.2–92.6)		95.8 (93.5–98.0)
Born in 2011–2015	<3 doses	202	53.3 (44.3–62.3)	<0.001	71.9 (64.2–79.6)	<0.001
	3 doses	174	69.8 (61.4–78.1)		86.8 (80.9–92.7)
	4 doses	173	80.6 (73.6–87.6)		96.1 (93.5–98.7)
	5 doses	19	91.2 (55.4–98.9)		94.9 (85.9–95.0)
Odessa
Born in 2006–2010	<3 doses	79	31.9 (16.2–47.6)	<0.001	45.2 (27.4–63.0)	<0.001
	3 doses	80	72.0 (61.5–82.5)		81.0 (71.3–90.8)
	4 doses	253	69.3 (62.8–75.9)		85.2 (80.2–90.1)
	5 doses	369	83.2 (79.2–87.3)		89.4 (84.9–93.9)
Born in 2011–2015	<3 doses	155	42.2 (31.5–52.8)	<0.001	58.0 (45.6–70.4)	<0.001
	3 doses	113	63.8 (52.5–75.0)		81.6 (71.1–92.1)
	4 doses	229	83.7 (77.7–89.6)		91.3 (86.6–96.1)
	5 doses	20	86.5 (71.5–89.6)		93.7 (83.3–100.0)
Kyiv City
Born in 2006–2010	<3 doses	33	41.9 (27.7–56.0)	0.051	55.0 (41.4–68.5)	0.050
	3 doses	47	63.2 (47.1–79.3)		73.8 (55.3–92.4)
	4 doses	183	85.6 (81.2–90.1)		92.6 (88.9–96.2)
	5 doses	179	87.6 (83.3–91.9)		96.0 (92.4–99.5)
Born in 2011–2015	<3 doses	53	54.8 (40.1–69.5)	0.010	62.3 (48.0–76.6)	0.006
	3 doses	70	67.2 (55.4–78.9)		88.6 (80.1–97.1)
	4 doses	138	89.1 (84.4–93.8)		97.1 (91.9–97.5)
	5 doses	19	94.7 (85.5–100.0)		100.0 (100.0–100.0)