Correction

This article refers to:

The Effects of Inflammation on Alpha 1 Antitrypsin Levels in a National Screening Cohort

Article title: “The Effects of Inflammation on Alpha 1 Antitrypsin Levels in a National Screening Cohort”

Authors: Sanders C, Ponte A, and Kueppers F

Journal: COPD: Journal of Chronic Obstructive Pulmonary Disease

Bibliometrics: Volume 15, Number 1, pages 10–16

DOI: http://dx.doi.org/10.1080/15412555.2017.1401600

The article was first published online with errors. The calculations under the headings “Adjusting AAT for elevated CRP” should have superscript values.

The correct versions of these calculations are below:

$“\text{ResidualAAT}”=\text{loge}(\text{measured} \text{AAT}+100)-y$

where: $$y=b1+b2.x+b3.x^2+b4.x^3$$ and

The calculations were as follows: $$x=\hspace{0.17em}\text{log}\hspace{0.17em}10(22.65+1)=1.374$$ $$y=5.19+0.114\times 1.374-0.012\times 1.{374}^2+0.018\times 1.{374}^3=5.377$$

The online version of this article has been corrected.