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.
Plot for odds ratio in multivariate logistic regression. Multivariate logistic regression analysis found that PT > 27°, PI outside the range of 44° to 62°, and DSVA ≥ 6 cm (OR = 3.342, 4.306 and 3.637, respectively), were associated with failure of conservative treatment and the need for surgery.
