Table 2. U.S. Population Sizes for Persons Aged 50 to 84 Years, by Race or Ethnicity, Sex, Knee Osteoarthritis, and Obesity.

Race and Sex	Total U.S. Population, n	Osteoarthritis-Free and Nonobese, n (%)*	Osteoarthritis-Free and Obese, n (%)*	Knee Osteoarthritis and Nonobese, n (%)*	Knee Osteoarthritis and Obese, n (%)*	Total With Knee Osteoarthritis, n	Total Obese, n
Black
Women	5 223 119	2 359 546 (45.2)	2 487 298 (47.6)	131 191 (2.5)	245 084 (4.7)	376 275	2 732 382
Men	4 015 026	2 251 727 (56.1)	1 528 521 (38.1)	101 573 (2.5)	133 205 (3.3)	234 778	1 661 727
Hispanic
Women	4 032 464	2 001 909 (49.6)	1 757 529 (43.6)	110 790 (2.7)	162 236 (4.0)	273 027	1 919 765
Men	3 672 622	2 262 873 (61.6)	1 208 958 (32.9)	104 840 (2.9)	95 951 (2.6)	200 791	1 304 909
White
Women	36 280 923	22 602 335 (62.3)	11 116 425 (30.6)	1 344 426 (3.7)	1 217 738 (3.4)	2 562 163	12 334 162
Men	32 742 215	20 069 679 (61.3)	10 644 938 (32.5)	1 009 891 (3.1)	1 017 707 (3.1)	2 027 598	11 662 646
Total	85 966 369	51 548 068 (60.0)	28 743 669 (33.4)	2 802 710 (3.3)	2 871 922 (3.3)	5 674 632	31 615 591

^*Percentage of race- and sex-stratified population group.