Table 3 Univariate and multivariate Cox regression analyses for evaluating the association between the SII and fragility fractures

All participants

 Low-level SII (≤ 381.32)

Ref

Ref

Ref

 Moderate-level SII (381.32–629.46)

1.967 (1.022–3.785)

0.043^*

1.807 (0.938–3.483)

0.077

1.828 (0.942–3.546)

0.074

 High-level SII (≥ 629.46)

3.016 (1.626–5.594)

 < 0.001^*

2.625 (1.402–4.917)

0.003^*

2.397 (1.222–4.700)

0.011^*

 P for trend

 < 0.001^*

0.002^*

0.009^*