Table 1.

Demographic Characteristics of Pill, Patch, and Ring Users

	Pills (n=779)		Patch (n=143)		Ring (n=601)		P
	n	%	n	%	n	%
Age*	23.7 (5.0)		24.1 (4.4)		24.3 (4.5)	4.5	0.042
Race							<0.001
Black or African American	327	42.1	85	59.4	227	38.2
White	385	49.5	47	32.9	317	53.3
Other or multiracial	65	8.4	11	7.7	51	8.6
Education							<0.001
High school or less	201	25.8	46	32.2	116	19.3
Some college	350	44.9	66	46.2	266	44.3
College or graduate school	228	29.3	31	21.7	219	36.4
Low socio-economic status							0.024
No	427	54.8	64	44.8	345	57.4
Yes	352	45.2	79	55.2	256	42.6
Monthly income (US dollars)							0.002
None	135	18.1	23	16.2	74	12.8
1–800	267	35.9	60	42.3	191	33.1
801–1600	216	29.0	33	23.2	167	28.9
1601 or higher	126	16.9	26	18.3	145	25.1
Insurance							<0.001
None	332	43.1	76	53.5	222	37.6
Private/student/parent/military	396	51.4	51	35.9	346	58.5
Medicare/Medicaid/disability	42	5.5	15	10.6	23	3.9
Parity							0.002
0	584	75.0	81	56.6	420	69.9
1	124	15.9	38	26.6	116	19.3
2	53	6.8	17	11.9	45	7.5
3 or more	18	2.3	7	4.9	20	3.3
History of unintended pregnancy							<0.001
0	445	57.5	52	36.4	330	54.9
1	191	24.7	48	33.6	152	25.3
2	82	10.6	17	11.9	60	10.0
3 more	56	7.2	26	18.2	59	9.8
History of abortion							<0.001
0	559	71.8	79	55.2	430	71.5
1	164	21.1	46	32.2	121	20.1
2	41	5.3	9	6.3	37	6.2
3 or more	15	1.9	9	6.3	13	2.2
History of sexually transmitted infection							<0.001
No	551	70.7	82	57.3	373	62.1
Yes	228	29.3	61	42.7	228	37.9
Parity							<0.001
0	584	75.0	81	56.6	420	69.9
1–2	177	22.7	55	38.5	161	26.8
3 or more	18	2.3	7	4.9	20	3.3
History of unintended pregnancy							<0.001
No	445	57.1	52	36.4	330	54.9
Yes	334	42.9	91	63.6	271	45.1
History of abortion							<0.001
No	559	71.8	79	55.2	430	71.5
Yes	220	28.2	64	44.8	171	28.5

^*Data are mean (standard deviation).