Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

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.

View full-text article in PMC

. 2014 Feb 21;37(2):105–114. doi: 10.1097/CJI.0000000000000020

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2014 by Lippincott Williams & Wilkins

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivitives 3.0 License, where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially. http://creativecommons.org/licenses/by-nc-nd/3.0.

PMC Copyright notice

TABLE 4.

Association Between DTH and Survival

graphic file with name cji-37-105-g006.jpg