PT - JOURNAL ARTICLE AU - Anjay M.A. Pillai AU - Vijay Palanivel TI - Subclinical vitamin D deficiency and acute respiratory tract infections in children: A systematic review DP - 2011 Sep 01 TA - European Respiratory Journal PG - p507 VI - 38 IP - Suppl 55 4099 - http://erj.ersjournals.com/content/38/Suppl_55/p507.short 4100 - http://erj.ersjournals.com/content/38/Suppl_55/p507.full SO - Eur Respir J2011 Sep 01; 38 AB - Rickets has historically been considered as a risk factor for development of pneumonia, primarily due to mechanical factors such as rib cage abnormalities and hypotonia. However, the association between vitamin D levels and acute respiratory tract infections (RTI) in children without rickets has not been thoroughly explored so far.Aims: We aim to systematically review the available literature regarding:Association of low Vitamin D levels with RTI in children without clinical ricketsRole of Vitamin D supplementation in prevention and treatment of RTI.Methods: Structured systematic literature searchResults: Seven papers on association of low Vitamin D levels and RTI were obtained. See Table 1.Two papers, both double blinded randomised controlled trials (RCT), were identified on Vitamin D supplementation in RTI. See Table 2.Conclusions: Our literature review has revealed that subclinical vitamin D levels are strongly associated with risk of acquiring RTI as well as increased RTI-related morbidity. There is some evidence from interventional studies regarding the potential role of vitamin D in prevention and treatment of RTI.