Figure - PMC

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

. 2017 Mar 2;12:44. doi: 10.1186/s13023-017-0597-1

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

© The Author(s). 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

PMC Copyright notice

Fig. 5 — Fitted mean of sample size and 95% confidence interval back transformed from logarithmic values by class of prevalence and phase of trial adjusted for interaction between prevalence, phase of study and the interaction between prevalence and phase for parallel 2-arm trials only (blue) and single group (1-arm) trials only (brown). Both fitted models were adjusted for other covariates (see Table 5)