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.
Forest plot for SMD and 95% CI of IL-6 in tears by keratoconus versus the control group. (a) The pooled effect of IL-6 in all studies. (b) Sensitivity analysis of IL-6 in tears by omitting one study in each turn. (c) Subgroup analysis of IL-6 in tears by detection methods.
