Table 1. Demographic characteristics and prevalence of HCV-Ab in the hospital-based population study, 2013–2015.

Characteristic	Patients, n (%)	HCV-Ab-positive, n	HCV-Ab-positive, % (95% CI)		p value
			Crude prevalence	Adjusted prevalence
All	111916 (100.0)	1611	1.4 (1.4–1.5)	1.7 (1.6–1.8)
Sex					<0.01
Male	46609 (41.6)	916	2.0 (1.8–2.1)	2.3 (2.1–2.4)
Female	65307 (58.4)	695	1.1 (1.0–1.1)	1.1 (1.0–1.2)
Age, y					<0.01
15–24	7300 (6.5)	42	0.6 (0.4–0.8)	0.7 (0.5–0.9)
25–34	26305 (23.5)	323	1.2 (1.1–1.4)	1.7 (1.6–1.9)
35–44	18254 (16.3)	591	3.2 (3.0–3.5)	3.4 (3.1–3.6)
45–54	18306 (16.4)	360	2.0 (1.8–2.2)	2.0 (1.8–2.2)
55–64	18925 (16.9)	149	0.8 (0.7–0.9)	0.8 (0.7–0.9)
≥65	22826 (20.4)	146	0.6 (0.5–0.7)	0.6 (0.5–0.7)

Abbreviations: Ab, antibody; CI, confidence interval; HCV, hepatitis C virus.