Skip to main content
. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: Mayo Clin Proc. 2018 Sep;93(9):1256–1265. doi: 10.1016/j.mayocp.2018.03.005

Table 1.

Multivariable Models for Incident Diverticulitis

Model 1 Model 2 Model 3 Model 4
Variable Main effects Interaction
Sex*BMI		 Interaction
Age*BMI		 Interaction Calendar year*BMI
Men, versus
women		 1.75 (1.62 - 1.88) 5.24 (4.50, 6.10) 1.76 (1.63, 1.90) 1.75 (1.63, 1.89)
Age, per decade 1.80 (1.77 - 1.83) 1.81 (1.78, 1.84) 1.98 (1.92, 2.05) 1.81 (1.77 - 1.84)
Calendar year, per decade 1.06 (1.01 – 1.11) 1.060 (1.01, 1.1) 1.06 (1.01, 1.1) 1.34 (1.22, 1.46)
BMI (kg/m2)
  < 25 1.0 (Reference group) - - -
  25-30 1.23 (1.12, 1.35) - - -
  > 30 1.53 (1.39, 1.68) - - -
BMI (kg/m2)
  <25 1.0 (Reference group) 1.0 (Reference group) 1.0 (Reference group)
  25-30 0.20 (0.17, 0.24) 0.90 (0.86, 0.94) 0.76 (0.68, 0.85)
  >30 0.25 (0.21, 0.30) 0.85 (0.81, 0.89) 0.67 (0.60, 0.76)

All values are multivariate IRR (95% CI)