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Table 1 Total primary TKR numbers for males and females combined (57.4% female) across deciles of socioeconomic status (SES), as measured by the Index of Relative Socioeconomic Advantage and Disadvantage (IRSAD), for Australia 2003–10

From: Associations between socioeconomic status and primary total knee joint replacements performed for osteoarthritis across Australia 2003–10: data from the Australian Orthopaedic Association National Joint Replacement Registry

Age (yr) Deciles of SES
1* 2 3 4 5 6 7 8 9 10
30-39 29 (0.02) 36 (0.03) 28 (0.02) 23 (0.02) 35 (0.02) 25 (0.02) 34 (0.02) 26 (0.02) 21 (0.01) 10 (0.01)
40-49 466 (0.34) 481 (0.34) 403 (0.28) 422 (0.30) 412 (0.28) 423 (0.28) 403 (0.25) 452 (0.27) 318 (0.19) 214 (0.13)
50-59 3,128 (2.64) 3,523 (2.80) 3,370 (2.67) 3,097 (2.54) 3,193 (2.44) 3,134 (2.34) 3,002 (2.15) 2,983 (2.03) 2,809 (1.94) 2,398 (1.67)
60-69 7,852 (9.86) 8,510 (10.08) 8,014 (9.45) 7,202 (8.81) 7,235 (8.22) 6,988 (7.76) 6,989 (7.46) 6,814 (6.90) 6,345 (6.51) 6,213 (6.43)
70-79 8,496 (16.92) 9,476 (17.81) 8,690 (16.25) 7,812 (15.15) 7,529 (13.57) 7,297 (12.86) 7,404 (12.53) 7,322 (11.76) 6,841 (11.14) 6,693 (10.98)
80-89 2,995 (13.73) 3,249 (14.06) 2,881 (12.40) 2,536 (11.32) 2,671 (11.08) 2,569 (10.42) 2,668 (10.39) 2,713 (10.03) 2,670 (10.01) 2,746 (10.37)
90+ 62 (2.37) 76 (2.75) 67 (2.41) 52 (1.94) 56 (1.94) 68 (2.30) 69 (2.24) 77 (2.38) 76 (2.38) 97 (3.06)
  1. Rates (presented in parentheses) are age-standardized to the 2006 Australian population at risk in each SES decile.
  2. *SES decile 1 is the most disadvantaged.