Table 2 Characteristics of study participants at recruitment
| Â | Men | Women | ||
|---|---|---|---|---|
Total hip replacement for OA | Total hip replacement for OA | |||
No | Yes | No | Yes | |
Number of participants | 1379 | 86 | 1099 | 87 |
25(OH)D (nmol/L), median (IQR) | 54.5 (42.7-69.0) | 57.0 (47.3-66.4) | 42.8 (34.7-52.7) | 44.6 (34.5-53.3) |
25(OH)D Quartile, n (%) | ||||
 1 (M < 43.00; F < 34.80 nmol/L) | 354 (25.7) | 12 (13.9) | 279 (25.3) | 23 (26.4) |
 2 (M 43.00- < 54.85; F 34.80- < 42.92 nmol/L) | 346 (25.1) | 24 (27.9) | 278 (25.3) | 19 (21.8) |
 3 (M 54.85- < 69.22; F 42.92- < 53.04 nmol/L) | 337 (24.4) | 31 (36.1) | 272 (24.8) | 23 (26.4) |
 4 (M ≥ 69.22; F ≥ 53.04 nmol/L) | 342 (24.8) | 19 (22.1) | 270 (24.6) | 22 (25.3) |
Age (years), mean (SD) | 53.5 (9.0) | 55.4 (8.2) | 53.3 (8.6) | 56.6 (8.1) |
Body mass index (kg/m2), mean (SD) | 26.8 (3.5) | 28.1 (3.2) | 26.1 (5.0) | 26.8 (4.4) |
Country of birth, n (%) | ||||
 Australia/United Kingdom | 1129 (81.9) | 73 (84.9) | 948 (86.3) | 79 (90.8) |
 Italy/Greece | 250 (18.1) | 13 (15.1) | 151 (13.7) | 8 (9.2) |
Socioeconomic status (SEIFA), n (%) | ||||
 Most deprived (quintiles 1-3) | 678 (49.4) | 37 (43.0) | 475 (43.3) | 38 (43.7) |
 Least deprived (quintiles 4-5) | 694 (50.6) | 49 (57.0) | 621 (56.7) | 49 (56.3) |
Vigorous physical activity, n (%) | 360 (26.1) | 31 (36.1) | 269 (24.5) | 22 (25.3) |
Smoking (former/current), n (%) | 766 (55.6) | 41 (47.7) | 355 (32.3) | 34 (39.1) |
Diabetes, n (%) | 58 (4.9) | 2 (2.8) | 22 (2.3) | 1 (1.3) |
Hypertension, n (%) | 257 (21.5) | 16 (22.5) | 212 (21.8) | 20 (25.6) |