Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison of sensitivity and specificity of serum markers for esophageal squamous cell carcinoma (%)
| Variable | HE4 | CEA | AFP | CA19-9 |
| Sensitivity | 66.2 | 53.7 | 65.0 | 73.1 |
| Specificity | 85.7 | 82.1 | 66.0 | 60.7 |
HE4: Human epididymis protein 4; CEA: Carcinoma embryonic antigen; AFP: Alpha fetal protein; CA19-9: Carbohydrate antigen 19-9.
