Delivering a Healthy WA
Disease WAtch

Mapping immunisation coverage data

As part of the National Partnership Agreement on Essential Vaccines there are a number of performance benchmarks that have to be reached by the Department of Health in order for it to receive full funding.

One of the performance benchmarks is “Maintaining or increasing coverage in agreed areas of low immunisation coverage”. To help identify, monitor and improve areas of low immunisation coverage throughout Western Australia (WA), the Communicable Disease Control Directorate (CDCD) has begun mapping Australian Childhood Immunisation Register (ACIR) immunisation coverage data by Local Government Area on a quarterly basis.

Below are a selection of the maps showing immunisation coverage of 3 different cohorts of children, 12-<15 months, 24-<27 months and 60-<63 months. Traffic light colours have been used with green indicating areas that have achieved high immunisation coverage (≥90%), red indicating areas that have low immunisation coverage (≤80%) and different shades of amber in between. All maps are produced by the Geographical Information System (GIS), Epidemiology Branch, System Policy and Planning Directorate, Department of Health, WA.

Please note: Local Government Areas with small numbers of children are prone to large fluctuations in immunisation coverage rates and maps should be viewed alongside the ACIR coverage data.

Figure 1 is a map showing the percentage of children aged 12-<15 months in Western Australia fully immunised, by Local Government Area (LGA), taken from the quarterly Australian Childhood Immunisation Register (ACIR) data extracted on the 30 June 2012.

Figure 1: Percentage of children aged 12-<15 months in Western Australia fully immunised, by Local Government Area (LGA), taken from the quarterly Australian Childhood Immunisation Register (ACIR) data extracted on the 30 June 2012.

Overall, the total WA immunisation coverage of 12-<15 months for the latest quarter is 90.1%. Public Health Unit regions with immunisation coverage exceeding 90% include Kimberley (91.1%), North Metropolitan (90.9%), Midwest (91.0%) and the Wheatbelt (94.1%).

Figure 2 is a map showing the percentage of children aged 12-<15 months in metropolitan Perth fully immunised, by Local Government Area (LGA), taken from the quarterly Australian Childhood Immunisation Register (ACIR) data extracted on the 30 June 2012.

Figure 2: Percentage of children aged 12-<15 months in metropolitan Perth fully immunised, by Local Government Area (LGA), taken from the quarterly Australian Childhood Immunisation Register (ACIR) data extracted on the 30 June 2012.

Large areas of green in both North and South metropolitan Perth represent LGAs that have immunisation coverage ≥90%. The lowest immunisation coverage is seen in Claremont, Fremantle and Waroona.

Figure 3 is a map showing the percentage of children aged 24-<27 months in Western Australia fully immunised, by Local Government Area (LGA), taken from the quarterly Australian Childhood Immunisation Register (ACIR) data extracted on the 30 June 2012.

Figure 3: Percentage of children aged 24-<27 months in Western Australia fully immunised, by Local Government Area (LGA), taken from the quarterly Australian Childhood Immunisation Register (ACIR) data extracted on the 30 June 2012.

Overall, the total WA immunisation coverage of 24-<27 months for the second quarter in 2012 is 90.1%. Public Health Unit regions with immunisation coverage exceeding 90% include Great Southern (91.5%), Kimberley (97.4%), Midwest (92.5%), South West (90.4%) and the Wheatbelt (94.1%).

Figure 4 is a map showing the percentage of children aged 24-<27 months in metropolitan Perth fully immunised, by Local Government Area (LGA), taken from the quarterly Australian Childhood Immunisation Register (ACIR) data extracted on the 30 June 2012.

Figure 4: Percentage of children aged 24-<27 months in metropolitan Perth fully immunised, by Local Government Area (LGA), taken from the quarterly Australian Childhood Immunisation Register (ACIR) data extracted on the 30 June 2012.

Immunisation coverage for North Metropolitan and South Metropolitan fell just shy of 90%, with 89.7% and 89.9%, respectively.

Figure 5 is a map showing the percentage of children aged 60-<63 months in metropolitan Perth fully immunised, by Local Government Area (LGA), taken from the quarterly Australian Childhood Immunisation Register data extracted on the 30 June 2012.

Figure 5: Percentage of children aged 60-<63 months in metropolitan Perth fully immunised, by Local Government Area (LGA), taken from the quarterly Australian Childhood Immunisation Register data extracted on the 30 June 2012.

More areas are highlighted in red and orange in this map than in the previous 2 state-wide maps, with the overall immunisation coverage for children aged 60-<63 months falling to 87.6%.

Figure 6 is a map showing the percentage of children aged 60-<63 months in metropolitan Perth fully immunised, by Local Government Area (LGA), taken from the quarterly Australian Childhood Immunisation Register (ACIR) data extracted on the 30 June 2012.

Figure 6: Percentage of children aged 60-<63 months in metropolitan Perth fully immunised, by Local Government Area (LGA), taken from the quarterly Australian Childhood Immunisation Register (ACIR) data extracted on the 30 June 2012.

Few areas of green are shaded in the map above reflecting the immunisation coverage rates of North and South Metropolitan Health Services that both fall below 90%, 86.8% and 86.6%, respectively.

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