Table 4. Ethnicity, sex, and age-specific per-person and population-based QALY losses due to OA, assuming 90% moderate pain for subjects in pain not due to OA.
| Ethnicity | Sex | Age | Proportion with knee OA | QALE in persons without knee OA | QALE in persons with knee OA | Per-person QALY losses in persons with knee OA* | Population-based QALE losses in persons with knee OA |
|---|---|---|---|---|---|---|---|
| Non-Maori | M | 40–44 | 0.012 | 28.82 | 22.34 | 6.48 | 10551.97 |
| 45–49 | 0.048 | 25.39 | 19.84 | 5.55 | 35422.91 | ||
| 50–54 | 0.048 | 22.02 | 17.29 | 4.73 | 26514.94 | ||
| 55–59 | 0.063 | 18.77 | 14.74 | 4.03 | 27745.57 | ||
| 60–64 | 0.063 | 15.63 | 12.31 | 3.32 | 17814.60 | ||
| 65–69 | 0.114 | 12.69 | 9.99 | 2.70 | 21586.74 | ||
| 70–74 | 0.114 | 9.90 | 7.81 | 2.09 | 12914.12 | ||
| 75–79 | 0.127 | 7.41 | 5.85 | 1.57 | 9131.25 | ||
| 80–84 | 0.128 | 5.39 | 4.24 | 1.15 | 4341.30 | ||
| Total | 15.54 | 12.20 | 3.34 | 166023.41 | |||
| F | 40–44 | 0.008 | 31.33 | 24.03 | 7.30 | 8426.69 | |
| 45–49 | 0.045 | 27.92 | 21.52 | 6.40 | 39248.26 | ||
| 50–54 | 0.045 | 24.53 | 18.96 | 5.57 | 29815.42 | ||
| 55–59 | 0.105 | 21.19 | 16.37 | 4.82 | 56407.82 | ||
| 60–64 | 0.104 | 17.92 | 13.85 | 4.06 | 36980.56 | ||
| 65–69 | 0.170 | 14.73 | 11.43 | 3.30 | 41482.76 | ||
| 70–74 | 0.169 | 11.61 | 9.06 | 2.55 | 25454.77 | ||
| 75–79 | 0.216 | 8.75 | 6.84 | 1.92 | 22157.55 | ||
| 80–84 | 0.215 | 6.32 | 4.95 | 1.37 | 12593.97 | ||
| Total | 15.77 | 12.22 | 3.55 | 272567.81 | |||
| Maori | M | 40–44 | 0.009 | 23.41 | 18.49 | 4.93 | 814.83 |
| 45–49 | 0.029 | 20.28 | 16.12 | 4.15 | 2002.33 | ||
| 50–54 | 0.029 | 17.27 | 13.76 | 3.51 | 1303.93 | ||
| 55–59 | 0.097 | 14.47 | 11.52 | 2.95 | 2890.25 | ||
| 60–64 | 0.097 | 11.97 | 9.52 | 2.45 | 1610.46 | ||
| 65–69 | 0.144 | 9.76 | 7.74 | 2.02 | 1575.02 | ||
| 70–74 | 0.144 | 7.68 | 6.10 | 1.58 | 760.76 | ||
| 75–79 | 0.208 | 5.82 | 4.60 | 1.22 | 455.82 | ||
| 80–84 | 0.208 | 4.33 | 3.40 | 0.93 | 148.57 | ||
| Total | 12.64 | 10.05 | 2.60 | 11561.96 | |||
| F | 40–44 | 0.013 | 26.14 | 20.40 | 5.74 | 1578.25 | |
| 45–49 | 0.048 | 22.86 | 17.92 | 4.94 | 4433.65 | ||
| 50–54 | 0.048 | 19.72 | 15.47 | 4.24 | 2858.42 | ||
| 55–59 | 0.070 | 16.75 | 13.10 | 3.65 | 2767.53 | ||
| 60–64 | 0.070 | 13.98 | 10.91 | 3.07 | 1577.79 | ||
| 65–69 | 0.131 | 11.50 | 8.97 | 2.53 | 1965.30 | ||
| 70–74 | 0.131 | 9.16 | 7.18 | 1.98 | 984.28 | ||
| 75–79 | 0.183 | 7.04 | 5.51 | 1.53 | 669.54 | ||
| 80–84 | 0.183 | 5.22 | 4.10 | 1.12 | 252.13 | ||
| Total | 15.55 | 12.17 | 3.38 | 17086.88 | |||
| Totals: | 15.57 | 12.14 | 3.44 | 467,240 | |||
QALE = quality-adjusted life expectancy; QALY = quality-adjusted life year; OA = osteoarthritis
*The expected QALE if persons with knee OA didn’t have knee OA was used to determine the per-person QALY losses. It was calculated by weighting the QALE of persons without knee OA according to the age distribution of people with knee OA.