Table 5 Hazard ratios and 95% confidence intervals for all-cause mortality according to quintiles of baseline serum uric acid to creatinine (n = 2,017)

Age (yr)

 < 65

586

2.22 (0.89–5.56)

1.00

2.16 (0.88–5.34)

1.76 (0.72–4.26)

3.27 (1.35–7.88)

0.093

 ≥ 65

1,431

1.02 (0.79–1.32)

1.00

1.14 (0.87–1.49)

1.43 (1.08–1.90)

1.48 (1.09–2.01)

0.030

Body mass index (kg/m²)

 < 22.0

559

0.82 (0.55–1.23)

1.00

0.89 (0.56–1.41)

1.33 (0.82–2.14)

1.62 (0.99–2.67)

0.045

 ≥ 22.0

1,458

1.35 (0.98–1.86)

1.00

1.35 (0.98–1.85)

1.58 (1.13–2.19)

1.64 (1.15–2.34)

0.053

Chronic kidney disease

 eGFR < 60 mL/min/1.73 m²/yr

275

1.84 (1.10–3.08)

1.00

2.00 (1.10–3.61)

0.96 (0.42–2.20)

6.18 (2.27–16.8)

0.002

 eGFR ≥ 60 mL/min/1.73 m²/yr

1,742

0.87 (0.64–1.17)

1.00

1.08 (0.81–1.44)

1.36 (1.02–1.82)

1.39 (1.02–1.88)

0.013

Serum uric acid lowering medication

 No

1,896

1.07 (0.83–1.38)

1.00

1.20 (0.92–1.57)

1.47 (1.11–1.95)

1.58 (1.17–2.14)

0.011

 Yes

121

1.68 (0.48–5.92)

1.00

1.56 (0.47–5.21)

1.28 (0.44–3.78)

2.30 (0.69–7.70)

0.670

Time to death (day)

 < 1,095

50

-

-

-

-

-

-

 ≥ 1,095

1,967

1.11 (0.85–1.43)

1.00

1.18 (0.90–1.54)

1.42 (1.08–1.88)

1.57 (1.16–2.12)

0.025