California Dept. of Health Services

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Utilizing GIS forLocal Program Planning and
Resource Allocation

• California Dept. of Health Services
• Maternal and Child Health

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Introduction

• Geographic Information Systems (GIS), an
  important public health tool
• GIS can help to allocate resources
• Year 2000/2010 objectives focus local interest in
  data

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Introduction (cont.)

• GIS in California continues to develop
• GIS efforts include- finding high-risk areas-
  resource allocation- services delivery

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HistoryIn the Beginning

• Earlier GIS efforts centered on county mapping
• Many large California counties
• Rising California teenage birth rates

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15-19 Birth RatesCalifornia and the US1970-1992
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History (cont.) In the Beginning

• California increased teenage pregnancy prevention
  funds
• New requests for better information
• Develop a new GIS-based method for awarding funds

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Moving ForwardInitial Mapping Strategies

• Initial zip code analysis of hot spots
• Drawbacks to zip codes
• geographically large
• not ideal to identify high risk groups
• boundaries change annually

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Where We AreCurrent Mapping Strategies

• Census tract advantages
• smaller and more precise
• boundaries change less often
• populations selected for research

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Where We Are (cont.)Current Mapping Strategies

• Granted access to confidential data
• Masked location of residences
• Locations offset
• No fewer than 10 teenagers
• No less than 15 miles
• Two years of data

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Where We Are (cont.)Current Mapping Strategies

• Residential locations reduced misinterpreting
  large hot spots
• Red Hot spots
• Schools improve community identification

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Where We Are (cont.)Current Mapping Strategies

• Maps with teenage pregnancy prevention program
  sites
• Display strategies included state, county and
  local levels of detail.

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Impact of Maps

• Used by Governor and legislature
• Program funding dependent on servicing hot spot
  
• Motivate communities to organize local efforts

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Conclusions

• Considerable sub-county clustering
• Residences provide important information
• Useful in funding services at state and local
  levels
• Useful for informing and galvanizing political
  support