Table 2.

Means and standard deviations of variables

	All (age 40–79)		High risk (age 50–69)		Non High Risk (age 40–49)		Non High Risk (age 70–79)
	Mean	StDev	Mean	StDev	Mean	StDev	Mean	StDev
Screening rate	57.8%	49.4%	73.8%	44.0%	37.1%	48.3%	53.4%	49.9%
Income ($'00/wk)	$3.26	$1.54	$2.79	$1.19	$4.56	$1.48	$2.11	$0.43
Australian born	79.5%	40.4%	79.5%	40.4%	77.5%	41.7%	83.0%	37.6%
Aboriginal	1.4%	11.6%	1.2%	10.9%	1.8%	13.5%	0.8%	9.1%
Observations	11308		5482		3785		2041