Uzair Mumtaz, Hamid Javaid Qureshi, Muhammad Usman Bashir.
Serum Zinc And Immunoglobulin G Levels In Lower And Upper/Upper Middle Socioeconomic Groups.
Esculapio J Services Inst Med Sci Jan ;12(4):166-9.

Objective: To assess the serum zinc and serum immunoglobulin G levels in different socioeconomic groups. Methods: Hundred subjects in total were investigated. Out of these, 50 (25 males and 25 females) belonged to the lower socioeconomic (LSEC) group and 50 (25 males and 25 females) belonged to the upper / upper middle socioeconomic (USEC) group. Estimation of serum zinc was made by colorimetric method whereas serum immunoglobulin G (IgG) was determined by the immunoturbidimetric assay. A comparison of both parameters was made between the two socioeconomic (SEC) groups. Results: Results revealed significantly low serum zinc in the LSEC group as compared to the USEC group. Similarly serum IgG levels were also significantly low in the LSEC group. Serum IgG levels did not show significant gender difference in the LSEC group however it was significantly higher in females than in males in the USEC. Generally a significantly positive correlation was found between serum zinc and serum IgG levels. Conclusion: The LSEC class has low serum zinc levels and low serum IgG levels and hence is at greater risk of developing infections.

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