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Journal of Clinical Psychology in Medical Settings 2000, 7(4):203-211. 45. Wolf MS, Feinglass J, Thompson J, Baker DW: In search of ‘low health literacy’: Threshold vs. gradient effect of literacy on health status and mortality. Soc Sci Med 2010, 70:1335-1341. Pre-publication history The pre-publication history for this paper can be accessed here: http://www.biomedcentral.com/1471-2458/10/459/prepub doi:10.1186/1471-2458-10-459 Cite this article as: Easton et al.: Health in the ‘hidden population’ of people with low literacy. A systematic review of the literature. BMC Public Health 2010 10:459. Submit your next manuscript to BioMed Central and take full advantage of: • Convenient online submission • Thorough peer review • No space constraints or color ﬁgure charges • Immediate publication on acceptance • Inclusion in PubMed, CAS, Scopus and Google Scholar • Research which is freely available for redistribution Submit your manuscript at www.biomedcentral.com/submit