Table 1 Description of simulation scenarios for combination construction

Non-proportional odds

3

200, 400, 800, 1600

P(D=1)=0.1,0.5

(X|D=1)∼N(0,2I₂)

μ∈{–1,0,1,2,3}

P(D=K)=0.05,0.3

(X|D=2)∼N(μ,2I₂)

(X|D=3)∼N(2,2I₂)

5

200, 400, 800, 1600

P(D=1)=0.1,0.5

(X|D=1)∼N(0,2I₂)

μ∈{–1,0,1,2,3}

P(D=K)=0.05,0.3

(X|D=2)∼N(0.5,2I₂)

(X|D=3)∼N(1,2I₂)

(X|D=4)∼N(μ,2I₂)

(X|D=5)∼N(2,2I₂)

Proportional odds

3

200, 400, 800, 1600

P(D=1)=0.1,0.5

X₁∼N(1,0.25)

(β₁,β₂)∈{(1,2),

P(D=K)=0.05,0.3

X₂∼N(1,0.25)

(1,1.5),(−1,1)}

5

200, 400, 800, 1600

P(D=1)=0.1,0.5

X₁∼N(1,0.25)

(β₁,β₂)∈{(1,2),

P(D=K)=0.05,0.3

X₂∼N(1,0.25)

(1,1.5),(−1,1)}