Table 1:

Patient sociodemographic characteristics of the Hopkins Lupus Cohort by smoking status

	All (n=2629)			African American (n=1033)			Caucasian (n=1382)
	Ever smokers	Never smokers	p-value	Ever smokers	Never smokers	p-value	Ever smokers	Never smokers	p-value
Gender			0.0003			0.0026			0.2282
Female	89.6%	93.5%		90.3%	95.1%		89.8%	91.8%	0%
Male	10.4%	6.5%		9.7%	4.9%		10.2%	8.3%
Age at SLE diagnosis			<0.0001			<0.0001			<0.0001
<30 years	39.7%	55.8%		39.7%	57.2%		39.1%	52.4%
30–44 years	36.7%	30.7%		38.4%	32.9%		35.7%	30.6%
45–59 years	17.7%	11.4%		17.6%	9.2%		17.9%	14%
60+ years	5.9%	2%		4.3%	0.8%		7.3%	3.1%
Education			<0.0001			<0.0001			<0.0001
≤12 years	47.6%	24.9%		58.1%	31.3%		42.4%	21.0%
>12 years	52.4%	75.1%		41.9%	68.7%		57.6%	79.0%
Family income			<0.0001			<0.0001			0.0002
< $30,000	41.6%	25.7%		64.1%	40.7%		26.2%	17%
$30,000–$65,000	29.9%	34.2%		24.1%	31.8%		35.4%	35.9%
$ 65,000+	28.5%	40.2%		11.8%	27.5%		38.4%	47.1%
Insurance			<0.0001			<0.0001			0.0001
Private	71.8%	82.2%		56.4%	70.6%		82.9%	90.8%
MA	24.8%	15.6%		38.4%	26.1%		15.1%	8.3%
None	3.4%	2.2%		5.3%	3.3%		2%	0.9%
Marital status			<0.0001			<0.0001			0.0006
Married	52.2%	54.1%		30.5%	39.2%		67.3%	64.7%
Single	28.5%	35.4%		43.3%	48.4%		17.2%	25.6%
Separated	3.6%	2.4%		5.5%	3.4%		2.3%	1.6%
Widowed	3.6%	1.8%		6%	2.6%		2.1%	1.4%
Divorced	12.2%	6.2%		14.7%	6.4%		11.1%	6.8%
Alcohol abuse			<0.0001			<0.0001			<0.0001
Ever	14.8%	2.2%		21.6%	1.7%		11%	2.6%
Never	85.2%	97.9%		78.4%	98.3%		89%	97.4%
Drug abuse			<0.0001			<0.0001			<0.0001
Ever	14.5%	1.6%		21.4%	1.7%		10%	1.5%
Never	85.5%	98.4%		78.7%	98.3%		90%	98.5%