The current issue of BMC Public Health presents work by the Consortium of Low Income Population Research (CB40R), highlighting a comprehensive aspect of health, i.e., physical health, mental health, health behaviour and health financing; and also nutrition involving all stages of lifespan of the socioeconomic deprived group in Malaysia.Consortium of B40 Research (CB40R) reposited and harmonised shared, non-identifiable data from epidemiological studies involving low income population (B40) in Malaysia. CB40R also performed joint or mega-analyses using combined, harmonised data sets that yield collated results with enhanced statistical power, more variabilities (study population, geographical regions, ethnicities and sociocultural groups) to better understand the needs, characteristics and issues of B40 groups in Malaysia. It also aimed to develope a system/framework of minimum/standard variables to be collected in research involving B40 in future. For this special issues, members of the consortium have been invited to contribute an original article involving analysis of the health aspects, access to health and nutritional issues of the B40 samples.All the papers in this special issue have successfully highlighted the health and nutritional issues (i.e., non-communicable disease (NCD), inflammatory bowel disease (IBD), knowledge towards sexually transmitted disease (STD), low birth weight, Motoric Cognitive Risk (MCR) syndrome, urinary incontinence), mental health, oral health and inequalities among the low-income group in Malaysia, including the rural population and also the urban poor. The low-income population in Malaysia is also at risk of both under- and over nutrition, of which specific cost effective strategies are indeed needed to improve their quality of life.The low income population in Malaysia is facing various health challenges, particularly related to NCD and poor mental health, nutritional and physical function. There is a need for a sustainable intervention model to tackle the issues. It is also important to highlight that reducing SES disparities in health will require policy initiatives addressing the components of socioeconomic status (income, education, and occupation) as well as the pathways by which these affect health.
* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.