Table 2 Risk of IBS according to Quartiles of baseline fatty liver index

No. of participants

98,371

99,289

99,714

99,464

No. of incident IBS

1882

1797

1701

1749

Follow-up, person-years

1,192,803

1,197,965

1,199,435

1,185,959

Follow-up, years

 Mean ± SD

12.1 ± 1.8

12.1 ± 1.8

12.0 ± 1.9

11.9 ± 2.1

 Median (IQR)

12.4 (11.7–13.1)

12.4 (11.6–13.1)

12.4 (11.6–13.1)

12.3 (11.6–13.1)

Hazard ratio for incident IBS (95%CI, P value)

 Adjusted model 1

Reference

1.15 (1.08–1.23)

1.24 (1.16–1.33)

1.36 (1.27–1.46)

 < 0.001

 Adjusted model 2

Reference

1.13 (1.06–1.21)

1.20 (1.12–1.28)

1.27 (1.19–1.37)

 < 0.001

 Adjusted model 3

Reference

1.12 (1.05–1.20)

1.17 (1.10–1.26)

1.21 (1.13–1.30)

 < 0.001