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Table 2 Hazard ratios for developing laryngeal cancer according to BMI

From: Synergistic association between underweight and type 2 diabetes on the development of laryngeal cancer: a national population-based retrospective cohort study

  IR (per 1000 person-years) HR (95% CI)
Model 1 Model 2 Model 3
Underweight
  < 18.5 0.052 1.59 (1.35–1.87) 1.36 (1.16–1.60) 1.43 (1.22–1.69)
  ≥ 18.5 0.042 1 (Reference) 1 (Reference) 1 (Reference)
BMI, kg/m2
  < 18.5 0.052 1.35 (1.14–1.59) 1.23 (1.04–1.45) 1.25 (1.06–1.48)
 18.5–22.9 0.045 1 (Reference) 1 (Reference) 1 (Reference)
 23–24.9 0.045 0.81 (0.74–0.88) 0.87 (0.80–0.94) 0.84 (0.78–0.92)
 25–29.9 0.039 0.71 (0.65–0.77) 0.78 (0.72–0.85) 0.74 (0.68–0.81)
  ≥ 30 0.026 0.77 (0.61–0.96) 0.83 (0.66–1.05) 0.76 (0.60–0.96)
  1. Model 1 was adjusted for age, sex
  2. Model 2 was adjusted for age, sex, income status, smoking, alcohol consumption, and physical activity
  3. Model 3 was adjusted for age, sex, income status, smoking, alcohol consumption, physical activity, type 2 diabetes, hypertension, dyslipidemia, and anemia
  4. Abbreviations: BMI Body mass index, CI Confidence interval, HR Hazard ratio, IR Incidence rate (1000 person-year)