Table 7.

Anti-HBs levels in volunteers by HBV vaccination status.

Vaccination status	N	0–9 (mIU/ml)			10–50 (mIU/ml)			51–100 (mIU/ml)			101–149 (mIU/ml)			≥ 150 (mIU/ml)
		n	%	95% CI	n	%	95% CI	n	%	95% CI	n	%	95% CI	n	%	95% CI
Vaccinated against HBV	711	353	49.6#	46.0–53.3	150	21.1*	18.3–24.2	54	7.6*	5.9–9.8	26	3.7*	2.5–5.3	128	18.0*	15.4–21.0
Not vaccinated against HBV	1,596	1,446	90.6*	89.1–91.9	55	3.4	2.7–4.5#	27	1.7#	1.2–2.5	11	0.7	0.4–1.2	57	3.6#	2.8–4.6
Total	2,307	1,799	78.0	76.2–79.6	205	8.9	7.8–10.1	81	3.5	2.8–4.3	37	1.6	1.2–2.2	185	8.0	7.0–9.2

^*Significantly higher than the total value. ^#Significantly lower than the total value. p < 0.05 for all comparisons.