TABLE 1.

Explanation of simulation parameters and other symbols.

Parameter	Explanation	Range of values
X	Dichotomous exposure	0 or 1
Y	Count outcome	≥0
Ci	Ten dichotomous confounders	0 or 1
P(Ci)	Prevalence of confounder i	5% to 25% in increments of 5%
β0	Baseline exposure prevalence	25% or 50%
βCi	Strength of the confounder-exposure association	log(1.5) to log(4.0) in increments of 0.5
βPS−INT	Strength of the C1 by C2 within-PS interaction	log(1.0) log(3.0) to log(5.0) in increments of 0.5
γX	Treatment effect	log(1.0) to log(5.0) in increments of 1.0
γ0	Baseline outcome rate	0.01, 0.10, 0.25 or 0.50 events per unit of person-time
γCi	Strength of the confounder-outcome association	log(1.5) to log(4.0) in increments of 0.5
γTX−INT	Strength of the C1 by treatment interaction	log(1.0) log(3.0) to log(5.0) in increments of 0.5
PSCOH	Propensity score estimated in the entire cohort	0 to 1
PSSS	Propensity score estimated in the subgroup	0 to 1
a	Number of exposed outcomes in the entire cohort	As observed
aC1=1	Number of exposed outcomes in the subgroup of C1 =1	As observed