Table 1.

Proportion of Cases (MA Users)^a and Controls (NHANES Participants)^b by Sociodemographic Factors Distributed among 5 Propensity Score Subgroups.

	Subgroup 1		Subgroup 2		Subgroup 3		Subgroup 4		Subgroup 5
Propensity score range	0.001 to 0.027		0.027 to 0.054		0.054 to 0.114		0.114 to 0.268		0.268 to 0.971
	MA	NHANES	MA	NHANES	MA	NHANES	MA	NHANES	MA	NHANES
Sample, n	31	630	29	632	34	628	129	532	328	333
Male	54.8	46.0	37.9	61.6	52.9	61.0	76.0	70.1	92.1	89.2
Female	45.2	54.0	62.1	38.5	47.1	39.0	24.0	29.9	7.9	10.8
Born in the U.S.	74.2	74.2	86.2	86.6	91.2	85.0	76.7	79.5	87.2	83.8
Born in Mexico	5.1	11.9	3.5	5.5	2.9	9.1	15.5	11.5	6.4	8.4
Born outside of U.S. or Mexico	5.1	14.0	5.7	7.9	5.9	5.9	7.8	9.0	6.4	7.8
White	38.7	36.5	24.1	32.1	55.9	41.4	26.4	25.8	9.6	13.8
African American	22.6	17.0	24.1	30.4	29.4	30.6	27.9	33.3	53.1	42.6
Hispanic	32.3	42.2	48.3	33.1	11.8	23.3	42.6	36.3	28.4	38.7
Other race	6.5	4.3	3.5	4.4	2.9	4.8	3.1	4.7	9.2	4.8
High school graduate	77.4	64.0	72.4	66.6	64.7	71.5	54.3	61.7	77.4	66.4
Bachelor’s degree	19.4	6.8	3.5	15.0	8.8	11.3	12.4	8.8	4.0	6.6
Married / cohabiting	71.0	54.4	27.6	34.0	23.5	15.8	0.8	1.7	0	0
Single / divorced / separated	29.0	45.6	72.4	66.0	76.5	84.2	99.2	98.3	100	100
Former smoker	22.6	12.7	17.2	16.9	11.8	12.6	11.6	12.6	6.7	9.6
Current smoker	24.8	31.6	37.9	34.5	61.8	53.7	49.6	57.7	83.2	71.2
Mean age (SE), y	42.4 (1.74)	42.1 (0.65)	38.7 (1.86)	36.6 (0.58)	39.9 (1.7)	36.8 (0.53)	41.0 (0.86)	38.3 (0.58)	46.5 (0.47)	47.3 (0.68)

Values presented in percentages, except where noted.

^aData from the study of oral health of methamphetamine (MA) users.

^bData from the matched subsample from the National Health and Nutrition Examination Survey (NHANES), 1999 to 2004.