Table 2 Prevalence and odds of hip arthritis and osteoarthritis according to demographic characteristics
| Â | Hip arthritis | Hip osteoarthritis | ||||
|---|---|---|---|---|---|---|
Characteristic | Prevalencen(%) | Unadjusted OR (95%CI) | Adjusted OR* (95%CI) | Prevalencen(%) | Unadjusted OR (95%CI) | Adjusted OR* (95%CI) |
Sex | ||||||
 Male (n= 500) | 19 (4) | 1.00 | 1.00 | 13 (3) | 1.00 | 1.00 |
 Female (n= 656) | 64 (10) | 2.74 (1.62-4.63) | 3.70 (1.98-6.91) | 44 (7) | 2.69 (1.43-5.05) | 3.39 (1.59-7.22) |
Age group | ||||||
 <50 years (n= 363) | 14 (4) | 1.00 | 1.00 | 11 (3) | 1.00 | 1.00 |
 50-59 years (n= 290) | 10 (3) | 0.89 (0.39-2.04) | 0.97 (0.39-2.41) | 3 (1) | 0.33 (0.09-1.21) | 0.37 (0.10-1.39) |
 60-69 years (n= 230) | 17 (7) | 1.99 (0.96-4.12) | 2.01 (0.87-4.61) | 15 (7) | 2.23 (1.01-4.95) | 1.95 (0.78-4.88) |
 70-79 years (n= 178) | 29 (16) | 4.89 (2.51-9.51) | 5.13 (2.29-11.49) | 23 (13) | 4.81 (2.29-10.11) | 4.35 (1.79-10.56) |
 ≥80 years (n= 82) | 13 (16) | 4.77 (2.15-10.59) | 6.86 (2.54-18.50) | 5 (6) | 2.13 (0.72-6.32) | 1.89 (0.50-7.18) |
Body Mass Index (BMI) | ||||||
 Underweight / normal weight (n= 430) | 28 (7) | 1.00 | 1.00 | 18 (4) | 1.00 | 1.00 |
 Overweight (n= 383) | 20 (5) | 0.79 (0.44-1.43) | 1.00 (0.53-1.89) | 16 (4) | 1.00 (0.50-1.98) | 1.17 (0.56-2.44) |
 Obese (n= 248) | 26 (10) | 1.68 (0.96-2.93) | 2.18 (1.17-4.06) | 16 (6) | 1.58 (0.79-3.16) | 1.62 (0.77-3.45) |
Highest level of education | ||||||
 Primary school or less (n= 54) | 8 (15) | 1.00 | 1.00 | 6 (11) | 1.00 | 1.00 |
 Year 7–10 (n= 263) | 31 (12) | 0.75 (0.32-1.74) | 1.01 (0.37-2.76) | 19 (7) | 0.62 (0.23-1.62) | 0.62 (0.20-1.94) |
 Year 11–12 (n= 213) | 12 (6) | 0.34 (0.13-0.87) | 0.53 (0.17-1.64) | 10 (5) | 0.39 (0.13-1.12) | 0.49 (0.14-1.73) |
 Trade / technical (n= 260) | 15 (6) | 0.34 (0.14-0.86) | 0.74 (0.25-2.18) | 10 (4) | 0.31 (0.11-0.90) | 0.64 (0.19-2.17) |
 University (n= 356) | 17 (5) | 0.28 (0.12-0.69) | 0.67 (0.22-1.99) | 12 (3) | 0.27 (0.10-0.77) | 0.47 (0.14-1.62) |
Marital status | ||||||
 Married / living with partner (n= 924) | 61 (7) | 1.00 | 1.00 | 41 (4) | 1.00 | 1.00 |
 Single / divorced / widowed (n= 222) | 22 (10) | 1.56 (0.94-2.61) | 0.94 (0.50-1.76) | 16 (7) | 1.70 (0.93-3.08) | 1.17 (0.57-2.41) |
Country of birth | ||||||
 Australia (n= 894) | 59 (7) | 1.00 | 1.00 | 42 (5) | 1.00 | 1.00 |
 Other (n= 255) | 24 (9) | 1.47 (0.89-2.41) | 1.73 (0.98-3.07) | 15 (6) | 1.27 (0.69-2.33) | 1.25 (0.62-2.49) |
Location | ||||||
 Metropolitan (n=775) | 56 (7) | 1.00 | 1.00 | 40 (5) | 1.00 | 1.00 |
 Provincial or rural (n=381) | 27 (7) | 0.98 (0.61-1.57) | 0.70 (0.36-1.35) | 17 (4) | 0.86 (0.48-1.53) | 0.79 (0.37-1.71) |