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Dietary intakes of zinc and copper and cardiovascular risk factors in T ehranian adults: T ehran L ipid and G lucose S tudy
Author(s) -
ShabBidar Sakineh,
HosseiniEsfahani Firoozeh,
Mirmiran Parvin,
Mehran Mahya,
Azizi Fereidoun
Publication year - 2013
Publication title -
nutrition and dietetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.479
H-Index - 31
eISSN - 1747-0080
pISSN - 1446-6368
DOI - 10.1111/1747-0080.12026
Subject(s) - confounding , medicine , odds ratio , zinc , metabolic syndrome , food frequency questionnaire , endocrinology , zoology , physiology , obesity , chemistry , biology , organic chemistry
Aim The aim of the present study was to investigate the intakes of zinc and copper in relation to cardiovascular disease ( CVD) risk factors in a group of Tehranian adults. Methods The present cross‐sectional study was conducted on 2750 individuals, selected among participants of the T ehran L ipid and G lucose S tudy. Dietary intake was assessed using a validated semi‐quantitative food frequency questionnaire. Metabolic syndrome ( MetS ) and CVD risk factors were evaluated. Results After adjustment of possible confounders, the dietary zinc intake was found to have a negative relation with serum HDL ‐ C (β = −0.47, P = 0.027), triglycerides ( TG ) (β = −0.003, P = 0.032) and 2‐hour blood glucose (β = −1.6, P = 0.017) levels in women. Prevalence of MetS was not associated with dietary zinc intake when confounding factors were included in the statistical model. Comparing the highest versus the lowest intake categories of dietary copper, the multivariable adjusted odds ratios for HDL ‐ C , fasting blood glucose( FBG ), TG and MetS were 1.75 (1.43–2.25)( P for trend = 0.003), 0.90 (0.76–1.23)( P for trend = 0.017), 0.11(0.08–0.21) ( P for trend = 0.042) and 0.19 (0.15–0.38)( P for trend = 0.023), respectively. Conclusions The results indicate gender differences in the association between zinc intake and CVD risk factors; in women, lower consumption of dietary zinc was associated with increased levels of serum TG and 2‐hour BG and decreased levels of HDL ‐ C , while C opper intake was negatively associated with higher risk of MetS and its components ( FBG , HDL ‐ C and TG ).