Table 2. Insured hypertensive adults subdivided by private versus public insurance in 3 NHANES time periods.

	1988 – 1994		1999 – 2004		2005 – 2010

Variable	Private	Public	Private	Public	Private	Public
Sample, N	1496	340	1382	361	1512	676
Pop., N	17,040,331	2,195,746	23,244,360	4,342,700	24,494,750	6,381,747
Group, %	88.6 85.8-91.4	11.4 8.6-14.2	84.3 81.8-86.7	15.7 13.3-18.2	^†79.3 77.0-81.7	^†20.7 18.3-23.0
Age, year	48.6 47.9-49.3	48.9 46.5-51.2	49.2^* 48.4-50.0	50.7 49.2-52.3	^†50.3 49.6-50.9	50.9 49.7-52.1
Sex, Male, %	^*57.4^‡ 54.3-60.4	40.1 33.1-47.0	51.9 48.6-55.1	49.9 44.1-55.7	53.3 50.6-55.9	48.6 42.9-54.2
Race, W:B:H:O	^‡		^‡		^‡
White, %	79.1 76.4-81.8	48.8 39.0-58.6	74.2 70.4-78.0	57.6 49.5-65.8	76.2 72.0-80.4	54.3 46.6-62.1
Black, %	14.2 12.2-16.2	^†34.9 27.0-42.7	14.0 10.8-17.2	20.9 15.4-26.5	12.9 10.0-15.8	27.4 21.1-33.7
Hispanic, %	^†2.9 2.3-3.6	^*6.1 3.7-8.5	7.4 5.2-9.5	14.3 7.7-20.9	^†5.8 4.3-7.2	10.6 7.0-14.2
Other, %	3.8 2.3-5.3	10.2 2.7-17.8	4.5 2.9-6.0	7.2 2.4-12.0	5.1 3.4-6.8	7.6 4.7-10.6
HC visits/yr	^‡		^‡		^‡
0-1	^‡35.5 31.9-39.1	^*17.6 11.6-23.6	25.7 22.7-28.6	7.9 4.5-11.2	^†23.3 20.3-26.3	10.6 7.1-14.0
≥2	^‡64.5 60.9-68.1	^*82.4 76.4-88.4	74.3 71.4-77.3	92.1 88.8-95.5	^‡76.7 73.7-79.7	89.4 86.0-92.9
BMI, kg/m²	30.2 29.6-30.8	31.1 29.3-32.9	31.0 30.5-31.5	32.2 31.0-33.4	^‡31.6^‡ 31.2-32.0	^*33.4 32.4-34.3
≥30	^*43.8 39.2-48.5	50.5 39.3-61.8	50.1 46.6-53.5	56.5 48.6-64.4	^†52.9^† 49.4-56.3	^*62.4 56.9-68.0
SBP, mmHg	137.8^* 136.4-139.3	140.4 138.2-142.7	^‡136.0 135.0-137.1	^‡136.7 133.8-139.6	^‡132.0 131.0-133.0	^‡1311 129.7-132.5
DBP, mmHg	^‡85.1 84.1-86.0	^†84.1 82.2-85.9	^‡81.6 80.7-82.5	^*79.3 77.3-81.4	^‡77.8 76.7-78.8	^‡76.3 75.0-77.6
Statin, %	^‡2.1 1.0-3.1	5.4 0-13.4	^‡16.9^* 14.1-19.7	22.8 18.0-27.6	^‡26.6 23.7-29.5	^‡32.0 26.9-37.0
Diabetes, %,	8.1^‡ 6.4-9.7	17.2 11.9-22.6	^†9.8^‡ 8.2-11.4	20.1 15.6-24.6	^‡14.4^‡ 12.3-16.5	24.1 20.5-27.6
CVD, %	9.2^‡ 6.7-11.6	25.9 18.2-33.5	10.4^‡ 8.1-12.7	26.8 20.8-32.8	9.7^‡ 7.9-11.4	28.3 23.4-33.2
CKD, %	4.5^‡ 2.9-6.0	12.8 7.2-18.4	5.0^‡ 4.0-6.1	11.5 7.5-15.5	5.6^‡ 3.9-7.3	12.9 9.7-16.2
Smoking, %	22.3^‡ 19.1-25.4	36.2 29.6-42.8	17.9^‡ 15.1-20.6	36.7 29.9-43.5	^*17.3^‡ 14.8-19.7	33.0 27.9-38.1
Poverty Index	^†3.4^‡ 3.3-3.6	1.3 1.0-1.6	3.7^‡ 3.6-3.8	1.6 1.4-1.9	^‡3.8^‡ 3.7-3.9	^‡2.1 1.8-2.3
Poverty index	^‡		^‡		^‡
Below 100%	3.5 1.9-5.1	^*56.6 45.8-67.4	^‡4.6 3.6-5.6	40.2 31.9-48.5	2.4 1.8-3.1	^‡34.8 29.6-40.0
100%-<200%	12.9 10.6-15.2	26.4 19.0-33.7	10.7 8.5-12.9	34.0 25.4-42.6	10.7 8.3-13.1	28.8 24.1-33.5
200% or more	83.6 80.5-86.6	17.0 8.7-25.3	84.7 82.2-87.2	25.9 17.8-34.0	86.9 84.4-89.4	^†36.4 29.8-43.0
Education	^‡		^‡		^‡
≥Some college,%	^‡41.7 37.9-45.4	^†12.4 5.8-19.0	58.3 54.9-61.8	^‡28.3 22.3-34.4	^‡62.8 58.7-66.9	^‡49.2 42.9-55.6
High school, %	^‡39.7 36.0-43.4	28.3 21.2-35.4	27.2 24.3-30.2	29.7 23.9-35.5	^‡25.3 21.8-28.7	21.6 17.5-25.7
<High school, %	18.6 15.0-22.3	^*59.3 49.1-69.5	14.4 12.8-16.1	^*42.0 35.1-48.9	^†11.9 9.8-14.1	^‡29.2 22.5-35.8

p<0.05,

^†

p<0.01,

^‡

p<0.001.

Abbreviations, symbols and significance are the same as Table 1.

Means and 95% confidence intervals in italics exceed the variance allowed in NHANES reporting guidelines, i.e., relative standard errors >30%; data provided as information only