Epidemiology Research International

Research Article

Uncertainty Analysis in Population-Based Disease Microsimulation Models

Table 4

Correlation matrix for hazard ratios of osteoarthritis in POHEM-OA*, estimated from the NPHS **(2000–2002); reference category: normal weight (18.5 ≤ BMI < 25), shown for male (female) in the upper (lower) triangular part of the matrix.
BMI < 18.518.5 ≤ BMI < 2525 ≤ BMI < 30BMI ≥ 30.0
BMI < 18.510.51250.5362(Ref)
18.5 ≤ BMI < 250.623410.5405—
25 ≤ BMI < 300.63250.58121—
BMI ≥ 30.0(Ref)——
*POHEM-OA: Population Health Microsimulation model for osteoarthritis (OA) [46]; **NPHS: National Population Health Survey, a longitudinal household survey by statistics Canada with a sample of size of over 17,000 persons that started in 1994 [49].