Prevalence and associated factors of viral hepatitis and transferrin elevations in 5036 patients admitted to the emergency room of a Swiss university hospital: cross-sectional study

Table 5 Observed and standardised prevalences of positive anti-HBc and anti-HCV antibodies in the study population of 5'036 patients

Prevalence	Anti-HBc + % (95% CI)	Anti-HCV + % (95% CI)
Observed	6.7 (6.0 to 7.4)	2.7 (2.3 to 3.2)
Standardized to age¹	6.5 (5.9 to7.2)	2.6 (2.2 to 3.1)
Standardized to admission variables¹	6.1 (5.3 to 6.9)	2.4 (1.9 to 2.8)

¹Direct standardisation to distribution of age or admission variables (season, daytime and specialty) of the source population, i.e. all 33'703 patients admitted to the emergency room during the study period.

ISSN: 1471-230X