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. 2017 Oct 26;12(10):e0184506. doi: 10.1371/journal.pone.0184506

Table 3. Hazard ratiosa (95% CI) for the development of nephrolithiasis according to non-alcoholic fatty liver disease (NAFLD) in clinically relevant subgroups.

Subgroup No NAFLD NAFLD p-value for interaction
Age <0.001
    <50 years (N = 192,626) Reference 1.19 (1.14–1.24)
    ≥50 years (N = 15,952) reference 1.06 (0.95–1.19)
Alcohol intake 0.130
    <10 g/day (N = 141,488) reference 1.13 (1.07–1.19)
    ≥10 g/day (N = 53,504) Reference 1.18 (1.11–1.26)
Smoking 0.223
    Never (N = 151,496) reference 1.14 (1.08–1.19)
    Current smoker (N = 49,209) reference 1.17 (1.09–1.25)
HOMA-IR 0.523
    <2.5 (N = 170,774) reference 1.16 (1.10–1.21)
    ≥2.5 (N = 32,985) reference 1.11 (1.02–1.20)
BMI 0.684
    <25 kg/m2 (N = 154,843) reference 1.19 (1.13–1.25)
    ≥25 kg/m2 (N = 53,718) reference 1.14 (1.08–1.21)
hsCRP 0.447
    <1.0 mg/l (N = 157,588) reference 1.14 (1.09–1.20)
    ≥1.0 mg/l (N = 49,444) reference 1.17 (1.09–1.25)

aEstimated from parametric Cox models adjusted for age, sex, center, year of screening exam, smoking status, alcohol intake, physical activity, education level, BMI, and history of hypertension and diabetes