Table 2.

Percent bias, model-based standard errors (SE), and empirical standard errors (ESE) for four estimators for cumulative risk after ten rounds of screening for simulated data.

	Moderate dependence			Strong dependence
	% Bias	SE	ESE	% Bias	SE	ESE
Scenario 1: Independent censoring, constant risk
Discrete survival	−0.002	0.005	0.009
Population average	−0.009	0.003	0.005
Adjusted population average	0.007	0.005	0.009
Censoring bias	−0.094	0.010	0.015
Scenario 2: Independent censoring, variable risk
Discrete survival	−0.007	0.005	0.008	−0.010	0.004	0.008
Population average	5.209	0.003	0.005	20.552	0.003	0.005
Adjusted population average	1.574	0.004	0.007	7.043	0.004	0.008
Censoring bias	−0.072	0.011	0.010	−0.074	0.009	0.018
Scenario 3: Dependent censoring, variable risk
Discrete survival	−4.708	0.004	0.005	−11.376	0.004	0.005
Population average	9.630	0.001	0.002	10.148	0.002	0.002
Adjusted population average	3.576	0.003	0.004	3.940	0.003	0.004
Censoring bias	−0.809	0.013	0.010	−4.435	0.011	0.007
Scenario 4: Dependent censoring, constant risk
Discrete survival	−1.993	0.019	0.032	−3.976	0.018	0.031
Population average	0.696	0.003	0.006	0.709	0.003	0.006
Adjusted population average	1.280	0.011	0.018	2.339	0.011	0.018
Censoring bias	−0.699	0.027	0.067	−1.022	0.025	0.070