Table A1.

Weighted Estimates of Demographic and General Health Covariates

Variable	RANDS (n=2480)			NHIS 2016 Q1 (n=8227)			NHIS 2016 Q2 (n=8256)			NHIS 2016 Q3 (n=8351)			NHIS 2016 Q4 (n=8194)			NHIS 2016 (n=33028)
	N	Est	SE	n	Est	SE	n	Est	SE	n	Est	SE	N	Est	SE	n	Est	SE
Age Groupa,b,c,d,e
18–34	703	26.9	0.93	2103	30.0	0.74	1979	30.0	0.78	1993	29.9	0.77	2024	29.9	0.78	8099	29.9	0.41
35–54	836	34.7	1.02	2530	33.6	0.70	2516	33.7	0.73	2566	33.6	0.70	2491	33.5	0.72	10103	33.6	0.37
55–64	548	17.9	1.02	1423	17.0	0.54	1502	16.7	0.54	1521	16.9	0.51	1478	16.9	0.51	5924	16.8	0.28
65–74	298	15.5	1.06	1226	11.5	0.40	1305	11.5	0.42	1326	11.7	0.40	1264	11.8	0.42	5121	11.6	0.22
75 and over	95	5.0	0.71	945	7.9	0.32	954	8.0	0.36	945	7.9	0.33	937	8.0	0.32	3781	8.0	0.18
Sex
Male	1351	49.4	1.57	3805	48.2	0.69	3708	48.2	0.75	3726	48.2	0.69	3752	48.2	0.71	14991	48.2	0.37
Female	1129	50.6	1.57	4422	51.8	0.69	4548	51.8	0.75	4625	51.8	0.69	4442	51.8	0.71	18037	51.8	0.37
Race and Ethnicitya,b,c,d,e
Non-Hispanic White	1587	73.2	0.91	5832	65.3	1.07	5805	65.0	1.11	5925	64.9	1.04	5812	64.7	1.05	23374	65.0	0.82
Non-Hispanic Black	503	11.7	0.64	877	12.1	0.67	983	12.2	0.64	917	12.2	0.64	876	12.2	0.65	3653	12.2	0.45
Non-Hispanic Asian	56	1.1	0.16	419	5.9	0.45	432	6.0	0.45	419	6.0	0.43	414	6.1	0.45	1684	6.0	0.30
Non-Hispanic Other	27	0.6	0.22	118	0.9	0.14	133	1.1	0.16	123	1.0	0.15	137	1.2	0.15	511	1.0	0.10
Hispanic	294	13.3	0.70	981	15.7	0.92	903	15.8	0.88	967	15.8	0.87	955	15.9	0.88	3806	15.8	0.70
Missing	13	-	-	0	-	-	0	-	-	0	-	-	0	-	-	0	-	-
Education Levela,b,c,d,e,f
Less than high school or GED	30	2.2	0.51	1307	16.3	0.62	1273	16.3	0.63	1191	14.2	0.59	1122	13.9	0.55	4893	15.2	0.34
High school graduate	564	36.5	1.10	1762	21.4	0.66	1839	22.9	0.68	1899	23.1	0.68	1729	21.2	0.61	7229	22.1	0.35
Associate degree or some college	913	30.7	0.92	2630	31.0	0.73	2593	30.9	0.74	2571	30.8	0.68	2708	33.2	0.77	10502	31.5	0.40
Bachelor’s or higher degree	973	30.5	1.01	2502	31.4	0.86	2524	30.0	0.84	2664	31.9	0.79	2602	31.6	0.78	10292	31.2	0.51
Missing	0	-	-	26			27	-	-	26	-	-	33	-	-	112	-	-
Family Incomea,b,c,d,e
<$50,000	562	32.1	1.60	3925	43.1	0.90	3890	43.2	0.93	3750	41.1	0.86	3762	41.9	0.89	15327	42.3	0.56
$50,000-$99,999	715	34.1	1.62	2105	30.1	0.73	2082	30.1	0.71	2223	31.0	0.72	2101	30.2	0.74	8511	30.3	0.40
>=$100,000	702	33.7	1.58	1563	26.8	0.87	1618	26.7	0.84	1695	27.9	0.86	1694	27.9	0.81	6570	27.3	0.53
Missing	501	-	-	634	-	-	666	-	-	683	-	-	637	-	-	2620	-	-
Geographic Region
Northeast	377	17.7	1.29	1418	18.4	0.75	1381	17.3	0.61	1425	18.1	0.64	1366	17.9	0.67	5590	17.9	0.50
Midwest	532	21.8	1.25	1837	22.2	0.62	1864	22.6	0.62	1850	22.3	0.59	1794	21.5	0.62	7345	22.1	0.46
South	925	37.0	1.50	2854	35.2	0.88	2846	36.1	0.84	2893	35.3	0.83	2894	36.5	0.87	11487	35.8	0.72
West	643	23.6	1.26	2118	24.3	0.78	2165	24.0	0.78	2183	24.3	0.77	2140	24.0	0.77	8606	24.2	0.66
Missing	3	-	-	0	-	-	0	-	-	0	-	-	0	-	-	0	-	-
Marital Statusa,b,c,d,e
Married/living with partner	1395	65.6	1.58	4134	60.6	0.77	4070	59.9	0.74	4244	60.8	0.76	4241	62.0	0.76	16689	60.8	0.43
Single/never married	454	21.4	1.36	1912	22.2	0.69	1898	23.2	0.67	1845	22.1	0.68	1808	21.3	0.66	7463	22.2	0.37
Separated/divorced/widowed	311	13.0	1.10	2159	17.2	0.46	2272	16.9	0.46	2241	17.1	0.49	2136	16.7	0.45	8808	17.0	0.24
Missing	320	-	-	22	-	-	16	-	-	21	-	-	9	-	-	68	-	-
Self-Rated Health Statusa,b,c,d,e
Excellent	308	12.8	1.04	2105	28.1	0.70	2057	26.9	0.71	2074	27.7	0.74	2091	27.4	0.69	8327	27.5	0.39
Very Good	939	37.2	1.50	2766	33.2	0.68	2667	31.8	0.70	2807	32.9	0.71	2834	34.7	0.71	11074	33.1	0.37
Good	895	36.1	1.50	2187	25.8	0.67	2278	27.5	0.67	2281	26.6	0.64	2148	25.5	0.60	8894	26.3	0.35
Fair	258	10.5	0.96	895	9.9	0.43	957	10.7	0.47	928	10.2	0.45	847	9.3	0.43	3627	10.0	0.25
Poor	61	3.4	0.59	270	3.0	0.23	294	3.1	0.24	260	2.7	0.23	270	3.1	0.26	1094	2.9	0.13
Missing	19	-	-	4	-	-	3	-	-	1	-	-	4	-	-	12	-	-
BMI Categorya,b,c,d,e
Underweight (BMI 18.5)	24	1.3	0.40	151	2.0	0.24	134	1.8	0.19	133	1.9	0.23	148	1.9	0.20	566	1.9	0.11
Normal (18.5<= BMI <25)	668	29.6	1.48	2562	31.8	0.70	2685	34.1	0.69	2686	33.5	0.74	2640	33.1	0.70	10573	33.1	0.38
Overweight (25<= BMI <30)	812	31.8	1.47	2791	35.9	0.71	2735	33.6	0.65	2808	34.9	0.74	2807	35.2	0.70	11141	34.9	0.36
Obese (BMI>= 30)	890	37.2	1.54	2399	30.2	0.74	2426	30.6	0.68	2447	29.7	0.69	2345	29.8	0.68	9617	30.1	0.38
Missing	86	-	-	324	-	-	276	-	-	277	-	-	254	-	-	1131	-	-

Note: Est stands for estimate, SE stands for standard error, estimates and standard errors are presented as percentages (%);

^adenotes significance at the 5% level from the Rao-Scott chi-square test between RANDS and NHIS 2016 Q;

^bdenotes significance at the 5% level from the Rao-Scott chi-square test between RANDS and NHIS 2016 Q2;

^cdenotes significance at the 5% level from the Rao-Scott chi-square test between RANDS and NHIS 2016 Q3;

^ddenotes significance at the 5% level from the Rao-Scott chi-square test between RANDS and NHIS 2016 Q4;

^edenotes significance at the 5% level from the Rao-Scott chi-square test between RANDS and NHIS 2016;

^fdenotes significance at the 5% level from the Rao-Scott chi-square test between NHIS 2016 Q1, Q2, Q3, and Q4