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

. 2011 May 31;8(5):e1000439. doi: 10.1371/journal.pmed.1000439

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

Shah et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

PMC Copyright notice

Systematic review and meta-analysis of studies investigating the relationship between haemoglobin concentration and prognosis in patients with stable coronary disease. Legend: ^aCI not reported in paper; standard error estimated from p-value. ^bReported by quintiles with fourth quintile as reference group; linear conversion by linear interpolation of relative risks across quintiles. ^cCardiovascular deaths and ACSs (all-cause mortality not reported in this study). ^dDerived from anaemia cutoff; HR 5.73 (95% CI 1.49–22.1) for anaemia (n = 14, mean haemoglobin = 11.0) versus nonanaemia (n = 129, mean haemoglobin = 14.4). ^eDerived from anaemia cutoff; HR 6.46 (95% CI 1.73–24.2) for anaemia (n = 71, mean haemoglobin = 11.2) versus nonanaemia (n = 239, mean haemoglobin = 14.0). ^fWe did not calculate risks from a linear model because it over-simplifies the shape of the relationship. ^gTotal number of patients is less than the sum of the individual cohort sizes because 861 patients were included in both angina and MI cohorts.