Table 2 Annual blood lead screening metrics, Broken Hill 2005–2012; 12–59 month old children
2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | |
|---|---|---|---|---|---|---|---|---|
Children screened | 563 | 456 | 456 | 361 | 376 | 397 | 553 | 665 |
0.60 | 0.48 | 0.49 | 0.39 | 0.41 | 0.44 | 0.62 | 0.75 | |
Geometric mean (μg/dL) | 5.7 | 6.1 | 5.9 | 4.8 | 5.8 | 4.7 | 4.8 | 5.4 |
Lower 95 % CI (μg/dL) | 5.4 | 5.7 | 5.5 | 4.5 | 5.5 | 4.4 | 4.6 | 5.2 |
Upper 95 % CI (μg/dL) | 6.1 | 6.5 | 6.3 | 5.2 | 6.2 | 5.0 | 5.0 | 5.7 |
Proportion children with blood leads equal to or greater than 5 μg/dL | 0.64 | 0.69 | 0.66 | 0.52 | 0.61 | 0.40 | 0.45 | 0.52 |
Proportion children with blood leads equal to or greater than 10 μg/dL | 0.37 | 0.40 | 0.40 | 0.32 | 0.34 | 0.33 | 0.27 | 0.39 |