Table 1.

Sample Characteristics

			Rheumatoid Arthritis (N = 639)				Urinary Incontinence (N = 407)
											Statistic
	Overall		With Cancer		Without Cancer		With Cancer		Without Cancer
Characteristic	(N = 1,046)		(n = 56)		(n = 583)		(n = 98)		(n = 309)		Kruskal-Wallis
Age (years)											H = 443.7 (0.000)
X̅	66.3		61.4		59.4		77.6		76.6
SD	13.6		10.5		12.0		7.9		8.3
Characteristic	n	%	n	%	n	%	n	%	n	%	χ2	p
Gender											8.2	0.042
Male	203	19	11	20	112	19	29	30	51	17
Female	843	81	45	80	471	81	69	70	258	84
Race											13.1	0.000
White	975	93	54	97	536	92	95	97	290	94
Black	40	4	2	3	22	4	2	2	14	5
Asian	3	< 1	–	–	3	< 1	–	–	–	–l
Multiracial	24	2	–	–	20	3	–	–	4	1
Other	4	< 1	–	–	2	< 1	1	1	1	< 1
Education											19.0	0.004
Less than high school	140	13	8	14	57	10	20	20	55	18
High school	502	48	23	41	287	49	41	42	151	49
Beyond high school	404	39	25	45	239	41	37	38	103	33