Table 1:

Summary of simulation results based on full data (negative binomial regression).

		Treatment Switch			No Treatment Switch
Parameter	True	Mean	SD	SE	Mean	SD	SE	CP
n = 200, non-informative censoring
α	1.000	1.0032	0.1341	0.1329	0.9823	0.1354	0.1350	0.931
β 0	1.609	1.5962	0.1106	0.1108	1.5988	0.1142	0.1095	0.943
β 1	−0.500	−0.2825	0.1586	0.1587	−0.5039	0.1630	0.1595	0.940
β 2	0.500	0.5007	0.1582	0.1606	0.4997	0.1646	0.1619	0.946
n = 400, non-informative censoring
α	1.000	1.0127	0.0941	0.0944	0.9919	0.0971	0.0960	0.941
β 0	1.609	1.6043	0.0784	0.0784	1.6030	0.0795	0.0776	0.940
β 1	−0.500	−0.2862	0.1131	0.1122	−0.5027	0.1139	0.1128	0.948
β 2	0.500	0.5028	0.1133	0.1133	0.5012	0.1153	0.1137	0.956
n = 200, informative censoring
α	1.000	1.0960	0.1448	0.1419	0.9790	0.1298	0.1345	0.941
β 0	1.609	1.6000	0.1118	0.1149	1.5977	0.1141	0.1097	0.946
β 1	−0.500	−0.2216	0.1741	0.1641	−0.4974	0.1659	0.1592	0.939
β 2	0.500	0.4974	0.1701	0.1664	0.4935	0.1574	0.1613	0.945
n = 400, informative censoring
α	1.000	1.1087	0.1072	0.1011	0.9897	0.0971	0.0957	0.940
β 0	1.609	1.6061	0.0784	0.0813	1.6032	0.0781	0.0776	0.944
β 1	−0.500	−0.2238	0.1219	0.1161	−0.5006	0.1139	0.1126	0.946
β 2	0.500	0.4997	0.1215	0.1169	0.5010	0.1134	0.1137	0.952

Mean, sample average of the parameter estimates; SD, sample standard deviation of the parameter estimates; SE, sample average of the standard error estimates; CP, empirical coverage probability of the 95% confidence intervals.