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Table 2 Event rates and adjusted hazard ratios of first liver-related events, according to BMI category and according to alcohol category

From: Risk of chronic liver disease in post-menopausal women due to body mass index, alcohol and their interaction: a prospective nested cohort study within the United Kingdom Collaborative Trial of Ovarian Cancer Screening (UKCTOCS)

BMI and alcohol categories First event rate per 1000 person years (95% confidence intervals) Hazard ratio (95% confidence intervals)a Hazard ratio (95% confidence intervals)b
BMI category (kg/m2)
  < 25 0.45 (0.4–0.5) 1 (reference) 1 (reference)
 25 - <30 0.65 (0.5–0.8) 1.44 (1.10–1.87) 1.31 (1.01–1.72)
  ≥ 30 1.06 (0.9–1.3) 2.25 (1.70–2.97) 1.85 (1.38–2.48)
Alcohol category (units/week)
 None 0.86 (0.7–1.0) 1 (reference) 1 (reference)
  < 1–15 0.55 (0.5–0.6) 0.70 (0.55–0.88) 0.78 (0.61–1.00)
 16–20 0.68 (0.3–1.2) 0.93 (0.50–1.73) 0.97 (0.52–1.82)
  ≥ 21 1.37 (0.7–2.5) 1.82 (0.97–3.39) 1.83 (0.97–3.44)
  1. aAdjusted for BMI (continuous variable) or alcohol category as appropriate bAdjusted for BMI (continuous variable) or alcohol category as appropriate and smoking, hypertension, heart disease, hypercholesterolaemia, diabetes and IMD