Table 2.

Comparison of inferences from three IPW estimators of six risk differences (RD) at 12 quarters based on four PS estimators. For each RD estimator, the PS estimator, the point estimate, standard error, its ratio to that of the hazard-based estimator with SL, the estimate of the lower and upper bound of the 95% confidence interval, and the associated p-value are denoted by g_n, ${\psi }_n^{{\theta }_1,{\theta }_2}$, ${\mathrm{\Gamma }}_n^{{\theta }_1,{\theta }_2}$, RE, ${\psi }_n^{{\theta }_1,{\theta }_2,-}$, ${\psi }_n^{{\theta }_1,{\theta }_2,+}$, and p, respectively.

IPW	θ1	θ2	gn	${\psi }_n^{{\theta }_1,{\theta }_2,+}$	${\mathrm{\Gamma }}_n^{{\theta }_1,{\theta }_2}$	${\psi }_n^{{\theta }_1,{\theta }_2,-}$	${\psi }_n^{{\theta }_1,{\theta }_2,+}$	p	RE
${\psi }_{n,HT}^{{\theta }_1,{\theta }_2}$	8.5	8	gn,t,SL	7.3e-03	4.3e-03	−1.1e-03	0.0156	0.089	1.059
	8.5	7.5	gn,t,SL	0.0231	7.5e-03	8.4e-03	0.0378	2e-03	1.054
	8.5	7	gn,t,SL	0.0506	0.0129	0.0254	0.0758	0	1.031
	8	7.5	gn,t,SL	0.0158	6.8e-03	2.5e-03	0.0292	2e-02	1.055
	8	7	gn,t,SL	0.0433	0.0128	0.0182	0.0685	1e-03	1.033
	7.5	7	gn,t,SL	0.0275	0.0118	4.4e-03	0.0506	0.019	1.029
${\psi }_{n,bd}^{{\theta }_1,{\theta }_2}$	8.5	8	gn,t,SL	9.8e-03	4.6e-03	8e-04	0.0188	0.032	1.137
	8.5	7.5	gn,t,SL	0.0255	7.9e-03	1e-02	0.041	1e-03	1.112
	8.5	7	gn,t,SL	0.0572	0.0127	0.0322	0.0822	0	1.021
	8	7.5	gn,t,SL	0.0157	7.2e-03	1.5e-03	0.0298	3e-02	1.119
	8	7	gn,t,SL	0.0474	0.0127	0.0224	0.0723	0	1.023
	7.5	7	gn,t,SL	0.0317	0.0117	8.7e-03	0.0547	7e-03	1.025
${\psi }_{n,h}^{{\theta }_1,{\theta }_2}$	8.5	8	gn	0.0109	5.7e-03	−3e-04	0.022	0.056	1.411
	8.5	7.5	gn	0.0212	8.7e-03	4.1e-03	0.0382	0.015	1.226
	8.5	7	gn	0.0387	0.0135	0.0122	0.0652	4e-03	1.085
	8	7.5	gn	0.0103	7.8e-03	−5e-03	0.0256	0.187	1.208
	8	7	gn	0.0278	0.0138	8e-04	0.0549	0.044	1.11
	7.5	7	gn	0.0175	0.0133	−8.5e-03	0.0435	0.187	1.161
${\psi }_{n,h}^{{\theta }_1,{\theta }_2}$	8.5	8	gn,t	9.9e-03	5.5e-03	−9e-04	0.0207	0.071	1.361
	8.5	7.5	gn,t	0.025	7.8e-03	9.6e-03	0.0404	1e-03	1.103
	8.5	7	gn,t	0.0418	0.0126	0.0172	0.0664	1e-03	1.006
	8	7.5	gn,t	0.0151	7.1e-03	1.2e-03	0.029	0.033	1.097
	8	7	gn,t	0.0319	0.0129	6.7e-03	0.0571	0.013	1.036
	7.5	7	gn,t	0.0168	0.012	−6.7e-03	0.0403	0.162	1.05
${\psi }_{n,h}^{{\theta }_1,{\theta }_2}$	8.5	8	gn,t, ×	0.0129	5.5e-03	2.1e-03	0.0237	2e-02	1.37
	8.5	7.5	gn,t, ×	0.0337	7.9e-03	0.0183	0.0491	0	1.104
	8.5	7	gn,t, ×	0.0483	0.0129	0.0229	0.0737	0	1.037
	8	7.5	gn,t, ×	0.0209	6.9e-03	7.3e-03	0.0345	3e-03	1.075
	8	7	gn,t, ×	0.0354	0.0129	1e-02	0.0608	6e-03	1.042
	7.5	7	gn,t, ×	0.0146	0.0121	−9.2e-03	0.0383	0.23	1.06
${\psi }_{n,h}^{{\theta }_1,{\theta }_2}$	8.5	8	gn,t,SL	8e-03	4e-03	1e-04	0.0159	0.046	1
	8.5	7.5	gn,t,SL	0.0216	7.1e-03	7.7e-03	0.0356	2e-03	1
	8.5	7	gn,t,SL	0.041	0.0125	0.0166	0.0655	1e-03	1
	8	7.5	gn,t,SL	0.0136	6.5e-03	1e-03	0.0263	0.035	1
	8	7	gn,t,SL	0.033	0.0124	8.6e-03	0.0574	8e-03	1
	7.5	7	gn,t,SL	0.0194	0.0114	−3e-03	0.0418	9e-02	1