Population Patterns of Hair Zinc Dietary and SocioDemographic Determinants

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• Population Patterns of Hair Zinc Dietary and
  Socio-Demographic Determinants
• Ziba Vaghri
• Co-investigators
• Drs. Susan Barr, Hubert Wong, and Clyde Hertzman
• University of British Columbia

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BACKGROUND INFORMATION

• Zinc
• -Essential mineral
• -Widely present
• -available in variety
  of food
• Deficiency occurs in spectrum
• Marginal Zinc Deficiency (MZD)
• sub-clinical , common, affects growth and
  development

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BACKGROUND

• Hair zinc A reliable biomarker
• ? HZn occurrence
• -24 in Eastern Canada (Smit et
  al, 1987)
• -46 in Vancouver inner city (Vaghri
  et al)

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OBJECTIVES

• To examine
• Zinc status of preschoolers of Vancouver
• Population patterns of hair zinc
• -Dietary correlates
• -Social correlates

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METHODS AND MATERIALS

• Study design Cross sectional
• Recruitment West Coast Family Services
• Sampling Semi-convenient stratified
• Inclusion criteria 24-71 mo, living in Vancouver
• N719

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SURVEY PARTICIPATION

• survey questionnaire
• Anthropometric measurement
• Hair sample collection

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Associations of hair zinc with food intake
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Associations of hair zinc with socio-demographic
variables
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Representation of different ethnicities in survey
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Low hair zinc
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TO CONCLUDE

• Excessive dairy milk intake adversely affected
  HZn

• Ethnicity based differences in ? HZn
• E.Indians______________________ Chinese

• Maternal education lone-parenthood two
  persisting
• social determinant of hair zinc

• Linear positive correlation between number of
  adults at
• home and HZn

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PRACTICAL IMPLICATIONS

• For health care professionals
• For public health intervention
• For researchers

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• ACKNOWLEDGEMENT
• Survey participants
• Survey volunteers
• Human Early Learning Partnership, HELP

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THANK YOU! Q?
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SURVEY SEQUENCE OF EVENTS