Description for figure 1
Model-adjusted systolic blood pressure across blood lead levels, household population aged 40 to 79, Canada, 2007 to 2011

The title of the graph is "Model-adjusted systolic blood pressure across blood lead levels, household population aged 40 to 79, Canada, 2007 to 2011."

This is a line chart.

The vertical axis is systolic blood pressure in millimetres of mercury.  The axis starts at 110 and increases by 1 millimetre of mercury up to 120.

The horizontal axis is blood lead level in micrograms per decilitre.  The axis starts at zero and ends at 7 with ticks at every increase of 1.

There are 5 series in this graph. The plotted range of values for all five series begins along the horizontal axis at 0.54 micrograms per decilitre and ends at 6.14 micrograms per decilitre.
The title of series 1 is called “Model 1 (40 to 79 years)
The title of series 2 is called “Model 2 (40 to 54 years)*.  The asterisk indicates that there is a significant association between blood lead level and systolic blood pressure for this age group.
The title of series 3 is called “Model 3 (55 to 79 years)
The title of series 4 is called “Model 4 (Men, 40 to 79 years)
The title of series 5 is called “Model 5 (Women, 40 to 79 years)