Table 2 Association between BRI and OA risk

Continuous BRI

1.23 (1.20, 1.27) < 0.0001

1.18 (1.14, 1.23) < 0.0001

1.18 (1.13, 1.23) < 0.0001

Categories BRI

Quartile 1

Reference

Reference

Reference

Quartile 2

2.17 (1.75, 2.69) < 0.0001

1.57 (1.24, 2.00) 0.0003

1.58 (1.22, 2.03) 0.0006

Quartile 3

3.08 (2.48, 3.82) < 0.0001

1.84 (1.43, 2.37) < 0.0001

1.83 (1.40, 2.40) < 0.0001

Quartile 4

4.81 (3.86, 5.99) < 0.0001

2.86 (2.24, 3.65) < 0.0001

2.70 (1.99, 3.66) < 0.0001

P-for-trend

< 0.0001

< 0.0001

< 0.0001