Table 3.

Prevalence of hepatitis B virus infection markers among children born in 2006–2015 by age group and sex across survey sites — Ukraine, 2017

Variable	Total No. tested	Anti-HBc-positive				HBsAg-positive
		No. positive	Weighted %	95% CI	P value	No. positive	Weighted %	95% CI	P value
Zakarpattya
Overall	1,268	56	5.2	3.1–8.7		6	0.7	0.3–1.4
Age groups
2006 –2009 cohorts	667	21	3.3	2.1–5.2	0.092	1	0.1	0.0 –0.8	0.045
2010 –2015 cohorts	601	35	6.4	3.4–1.5		5	1.0	0.4–2.2
Sex
Male	675	26	4.5	2.6–7.8	0.280	2	0.5	0.1–1.7	0.450
Female	593	30	5.9	3.3–10.4		4	0.9	0.3–2.2
Sumy
Overall	1,380	12	0.8	0.4–1.6		1	0.1	0.0–0.4
Age groups
2006 –2009 cohorts	699	8	1.1	0.4–2.7	0.423	1	0.1	0.0–0.8	n/a
2010 –2015 cohorts	681	4	0.6	0.2–1.8		0	0.0	0.0–0.6*
Sex
Male	719	5	0.6	0.2–1.6	0.332	0	0.0	0.0–0.5*	n/a
Female	661	7	0.9	0.4–2.0		1	0.1	0.0–0.8
Odessa
Overall	1,265	14	1.0	0.4–2.2		0	0.0	0.0–0.3*
Age groups
2006 –2009 cohorts	663	11	1.6	0.8–3.1	0.033	0	0.0		n/a
2010 –2015 cohorts	602	3	0.5	0.1–2.2		0	0.0
Sex
Male	654	6	0.9	0.3–2.6	0.669	0	0.0		n/a
Female	611	8	1.1	0.5–2.3		0	0.0
Kyiv City
Overall	683	7	1.1	0.5–2.3		2	0.1	0.0–0.8
Age groups
2006 –2009 cohorts	352	3	0.8	0.3–2.5	0.640	1	0.3	0.1–1.6	n/a
2010 –2015 cohorts	331	4	1.2	0.5–3.1		0	0.0	0.0–1.2*
Sex
Male	343	3	1.0	0.3–2.9	0.800	0	0.0	0.0–1.1*	n/a
Female	340	4	1.2	0.4–3.1		1	0.2	0.0–1.5

Note: CI, confidence interval; n/a, not applicable (could not be calculated because of zero prevalence); anti-HBc, antibodies against core antigen of hepatitis B virus; HBsAg, surface antigen of hepatitis B virus.

^*Crude estimate of CI (due to zero value of prevalence)