| lifestyle incongruity, stress and immune function in indigenous siberians: the health impacts of rapid social and economic change. | the purpose of this study was to investigate the impact of economic and cultural change on immune function and psychosocial stress in an indigenous siberian population. we examined epstein-barr virus antibodies (ebv), an indirect biomarker of cell-mediated immune function, in venous whole blood samples collected from 143 yakut (sakha) herders (45 men and 98 women) in six communities using a cross-sectional study design. we modeled economic change through the analysis of lifestyle incongruity (li ... | 2009 | 18711739 |