. Author manuscript; available in PMC: 2015 Oct 27.

Published in final edited form as: Stat Med. 2009 Jul 20;28(16):2095–2115. doi: 10.1002/sim.3599

Table I.

Results for simple examples varying population size and length of study.

Population	Years	$\hat{p}$ 01 f	$\hat{p}$ 01m	V( $\hat{p}$ ₀₁ _f ) variance	V( $\hat{p}$ _01m) variance	V( $\hat{p}$ _01m, $\hat{p}$ ₀₁ _f ) covariance
N =4	1	0.5033	0.5933	0.0601	0.0568	0.0492
	2	0.5031	0.5932	0.0601	0.0568	0.0492
	3	0.5029	0.5930	0.0601	0.0568	0.0492
N =150	1	0.5023	0.5879	0.0600	0.0573	0.0492
	2	0.5018	0.5875	0.0599	0.0572	0.0491
	3	0.5012	0.5870	0.0598	0.0572	0.0490