Table 1. Demographic characteristics.

Variable	Description	N*	%*	Mean	SD	Median
AGE	Age (year)	684,381		34.5	22.4	33.0
TTLP	Person’s total income ($)	690,298		26,070	30,556	17,960
INSCOV	Insurance coverage
	Private	392,680	56.9
	Public	188,316	27.3
	Uninsured	109,302	15.8
SEX	Sex
	Male	329689	47.8
	Female	360609	52.2
MARRY	Marital status
	Married	257,494	37.3
	Widowed	33,302	4.8
	Divorced	53,923	7.8
	Separated	13,404	1.9
	Never married	155,357	22.5
	Under 16 –N/A	176,283	25.6