TABLE 3.

Weighted prevalence for 4 hip outcomes, by race/ethnicity, sex, and age group, Johnston County Osteoarthritis Project 1991–1997^*.

Racial/ethnic group Sex		Hip symptoms		Radiographic Hip OA		Symptomatic Hip OA		Severe Radiographic Hip OA
Age group		%	95% CI	%	95% CI	%	95% CI	%	95% CI
Caucasian
Men	All	31.7	29.6,34.0	23.8	21.9,25.9	7.6	6.4, 8.9	2.5	1.9, 3.3
	45–54	30.3	26.5,34.3	20.9	17.8,24.5	6.6	4.8, 9.0	1.7	0.9, 3.5
	55–64	29.7	25.7,34.0	18.5	15.8,21.7	5.7	4.2, 7.8	0.9	0.5, 1.8
	65–74	33.5	29.9,37.4	32.0	27.9,36.3	8.3	6.2,10.9	5.8	4.3, 7.9
	75+	40.1	32.7,47.9	30.9	24.6,38.0	16.2	11.3,22.7	1.6	0.8, 3.3
Women	All	39.4	37.1,41.6	29.1	27.1,31.2	10.8	9.5,12.2	2.3	1.8, 3.0
	45–54	30.6	27.6,33.7
	50–54+			18.5	15.5,21.9	4.1	2.6, 6.2	1.1	0.4, 3.1
	55–64	39.7	36.3,43.2	25.1	22.1,28.3	10.1	8.1,12.5	1.1	0.7, 1.8
	65–74	45.1	41.2,49.1	28.7	25.5,32.1	11.3	9.2,13.9	1.5	0.8, 2.8
	75+	45.2	39.7,50.9	47.4	41.8,53.2	17.6	14.5,21.2	7.1	5.0,10.1
African American
Men	All	32.0	28.5,35.8	33.2	29.6,37.0	11.7	9.1,14.9	2.7	1.7, 4.2
	45–54	26.1	21.0,32.0	29.3	23.7,35.6	5.7	3.2,10.0	0.9	0.4, 2.2
	55–64	35.3	28.4,42.8	34.2	26.7,42.6	14.7	8.9,23.4	1.5	0.6, 3.6
	65–74	41.7	35.7,48.0	34.1	28.2,40.6	16.9	12.8,22.0	5.3	3.4, 8.1
	75+	21.1	12.9,32.5	43.0	33.3,53.2	12.9	6.0,25.5	5.8	1.3,21.9
Women	All	40.3	37.7,43.0	31.2	28.2,34.4	12.2	10.3,14.5	3.5	2.7, 4.6
	45–54	36.3	32.1,40.7
	50–54+			21.3	16.0,27.7	7.8	4.4,13.4	0.9	0.3, 2.3
	55–64	42.1	37.4,46.9	23.6	19.9,27.8	11.6	8.6,15.5	1.4	0.5, 3.9
	65–74	42.0	37.4,46.9	37.1	30.8,44.0	12.3	8.7,17.2	5.3	3.7, 7.5
	75+	42.1	34.2,50.5	45.7	39.5,52.0	17.7	14.0,22.0	7.3	4.8,10.9

^*Weighted to the 1990 target population.

⁺Radiographic data were available only for age 50 and older in women.