Table 1.

Prevalence Estimates and Standard Errors by Age (from 1000 bootstrap samples)

	1	2	3	4	5	6	7	8
	Prevalence Estimates			Various Estimated Standard Errors
	MSLT	Equil	Nat	MSLT	Equilibrium		Natural
				Boot	Boot	Derive	Boot	Derive
69	0.845	0.845	0.822	0.016	0.016	0.016	0.008	0.009
70	0.838	0.829	0.809	0.010	0.015	0.015	0.008	0.008
71	0.820	0.797	0.800	0.009	0.016	0.016	0.008	0.008
72	0.811	0.799	0.778	0.008	0.015	0.015	0.008	0.007
73	0.786	0.754	0.760	0.008	0.015	0.015	0.007	0.007
74	0.764	0.731	0.764	0.008	0.016	0.016	0.007	0.007
75	0.766	0.768	0.751	0.008	0.014	0.014	0.008	0.008
76	0.754	0.738	0.737	0.008	0.015	0.015	0.008	0.008
77	0.739	0.720	0.721	0.008	0.016	0.016	0.009	0.009
78	0.720	0.692	0.718	0.009	0.018	0.018	0.009	0.009
79	0.714	0.707	0.712	0.009	0.017	0.017	0.010	0.010
80	0.712	0.709	0.692	0.009	0.019	0.019	0.011	0.010
81	0.696	0.676	0.656	0.011	0.021	0.020	0.012	0.011
82	0.659	0.615	0.657	0.012	0.023	0.023	0.013	0.012
83	0.653	0.647	0.632	0.013	0.023	0.022	0.014	0.013
84	0.627	0.595	0.641	0.013	0.027	0.027	0.014	0.014
85	0.641	0.658	0.645	0.014	0.027	0.028	0.016	0.015
86	0.640	0.638	0.616	0.016	0.027	0.027	0.018	0.018
87	0.610	0.581	0.594	0.018	0.033	0.033	0.021	0.020
mean	0.726	0.710	0.711	0.011	0.020	0.020	0.011	0.011

Columns 1, 2, and 3 are the age-specific prevalences, estimated as noted in the column heading. Prev:MSLT is calculated from the multi-state life table; Prev:Equil is calculated using the equilibrium ratio; Prev:Nat is the proportion of persons at each age who are healthy, combining all waves of data.

Columns 4, 5, and 7 are standard deviation of the prevalence in 1000 bootstrap samples

Column 6 is the mean s.e. calculated from Appendix 2 equations

Column 8 is mean s.e. calculated as Prev:Nat*(1−prevalence)/n