|
Characteristics of study participants |
|
| Total (n = 293) |
|
|
|
|
| Age when magnetic resonance imaging performed (years) |
58.0 (5.5) |
| Female (n (%)) |
184 (63%) |
| Variables in 1990–1994 |
|
| Body mass index (kg/m2) |
25.2 (3.8) |
| Vegetables (times/day) (median (interquartile range)) |
5.0 (4.0–7.0) |
| Fruits (times/day) (median (interquartile range)) |
4.0 (2.0–5.0) |
| Energy from dietary intake (kJ/day) |
9,364.9 (3,067.5) |
| Vitamin C (mg/day) |
218.3 (107.3) |
| Vitamin E (mg/day) |
8.3 (3.4) |
| Carotenoids |
|
| α-Carotene (μg/day) |
1,387.0 (697.3) |
| β-Carotene (μg/day) |
5,821.1 (2,507.0) |
| β-Cryptoxanthin (μg/day) |
421.3 (348.1) |
| Lutein and zeaxanthin (μg/day) |
1,822.5 (908.9) |
| Lycopene (μg/day) |
7,782.6 (5,067.5) |
| Variables in 2003–2004 |
|
| Tibial cartilage volume (mm3) |
3,731 (1,118) |
| Presence of any tibiofemoral cartilage defects (n (%)) |
181 (62%) |
| Tibial plateau bone area (mm2) |
3,302 (475) |
| Presence of any tibiofemoral bone marrow lesions (n (%)) |
39 (13%) |
|
Data presented as the mean (standard deviation), unless stated otherwise. | |
Wang et al. Arthritis Research & Therapy 2007 9:R66 doi:10.1186/ar2225 |
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