| | | Both diabetes and rheumatoid arthritis, N (%) | Crude rate per 1,000,000 | Age-adjusted rate per 1,000,000 | Rheumatoid arthritis without diabetes, N (%) | Crude rate per 1,000,000 | Age-adjusted rate per 1,000,000 | Standard US population in 2000 |
| | Total | 20,584 (100%) | 3.57 (3.52–3.62) | 3.35 (3.31–3.40) | 170,291 (100%) | 29.56 (29.42–29.70) | 27.92 (27.78–28.05) | 5,761,465,567 |
| | Sex | | Female | 14,245 (69.20%) | 4.86 (4.78–4.94) | 4.04 (3.98–4.11) | 125,203 (73.52%) | 42.74 (42.51–42.98) | 34.96 (34.76–35.15) | 2,929,154,929 | | Male | 6,339 (30.80%) | 2.24 (2.18–2.29) | 2.45 (2.39–2.51) | 45,088 (26.48%) | 15.92 (15.77–16.07) | 17.80 (17.64–17.97) | 2,832,310,638 |
| | Race | | American Indian | 324 (1.57%) | 4.38 (3.90–4.86) | 7.68 (6.79–8.57) | 1,677 (0.98%) | 22.68 (21.60–23.77) | 41.51 (39.39–43.62) | 73,938,616 | | Asian or Pacific Islander | 400 (1.94%) | 1.31 (1.18–1.43) | 1.88 (1.69–2.07) | 2,686 (1.58%) | 8.78 (8.44–9.11) | 12.95 (12.45–13.45) | 306,084,526 | | Black or African American | 2,253 (10.95%) | 2.89 (2.77–3.01) | 4.10 (3.93–4.28) | 11,963 (7.03%) | 15.36 (15.08–15.63) | 22.07 (21.67–22.47) | 778,991,453 | | White | 17,607 (85.54%) | 3.83 (3.77–3.88) | 3.31 (3.26–3.36) | 153,965 (90.41%) | 33.45 (33.29–33.62) | 28.96 (28.82–29.11) | 4,602,450,972 |
| | Age groups | | <55 years | 939 (4.56%) | 0.22 (0.20–0.23) | — | 7,244 (4.26%) | 1.66 (1.62–1.70) | — | 4,355,837,726 | | 55–64 years | 2,718 (13.20%) | 4.25 (4.09–4.41) | — | 16,674 (9.79%) | 2.61 (2.57–2.65) | — | 639,299,997 | | 65–74 years | 5,627 (27.34%) | 13.53 (13.18–13.88) | — | 37,834 (22.22%) | 9.10 (9.00–9.19) | — | 415,933,194 | | 75–84 years | 7,363 (35.77%) | 29.37 (28.70–30.04) | — | 63,557 (37.32%) | 25.35 (25.16–25.55) | — | 250,688,640 | | 85+ years | 3,937 (19.13%) | 39.49 (38.25–40.72) | — | 44,981 (26.41%) | 45.11 (44.70–45.53) | — | 99,706,010 |
| | Census region | | Northeast | 3,002 (14.58%) | 2.87 (2.77–2.98) | 2.48 (2.39–2.57) | 26,707 (15.68%) | 25.56 (25.25–25.86) | 21.74 (21.48–22.01) | 1,045,051,171 | | Midwest | 5,400 (26.23%) | 4.28 (4.17–4.40) | 3.86 (3.76–3.97) | 45,460 (26.70%) | 36.05 (35.71–36.38) | 32.57 (32.27–32.88) | 1,261,166,722 | | South | 7,316 (35.54%) | 3.45 (3.37–3.53) | 3.26 (3.19–3.34) | 57,349 (33.68%) | 27.04 (26.82–27.26) | 26.02 (25.81–26.24) | 2,120,820,931 | | West | 4,866 (23.64%) | 3.65 (3.54–3.75) | 3.74 (3.63–3.84) | 40,775 (23.94%) | 30.56 (30.26–30.85) | 31.72 (31.41–32.03) | 1,334,426,743 |
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