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. 2018 Sep 24;20(10):1395–1410. doi: 10.1111/jch.13388

Table 2.

Characteristic distributiona of analytic samples for NHANES 2011‐2014 and BRFSS 2013/2015, by hypertension awareness and treatment statusb, c, d

  NHANES 2011‐2014 BRFSS 2013/2015
Total Unawareb Aware/Untreatedc Aware/Treatedd Total Unawareb Aware/Untreatedc Aware/Treatedd
(n = 10 199) (n = 6458) (n = 948) (n = 2793) (n = 817 426) (n = 480 503)  (n = 53 437)  (n = 283 486)
n % n % n % n % n % n % n % n %
Sex
Men 5045 49 3247 49.6 511 54.1 1287 45.3 339 289 48.7 195 417 47.7 28 318 61.4 115 554 47.9
Women 5154 51 3211 50.4 437 45.9 1506 54.7 478 137 51.3 285 086 52.3 25 119 38.6 167 932 52.1
Age in years
20‐29 1713 18.3 1 576 25.2 118 14.1 19 0.7 65 852 16.7 59 756 22.9 4839 16.9 1257 1.1
30‐39 1756 17.4 1432 21.4 208 20.9 116 4.9 88 878 17.2 75 080 22 7532 21.3 6266 4.3
40‐49 1787 19 1269 20.6 214 24.6 304 12.4 113 386 17.5 84 324 19.6 9312 21 19 750 11.5
50‐59 1696 19 970 16.8 184 22.2 542 23.8 171 337 19.6 103 827 17.7 13 138 21.2 54 372 24.1
60‐69 1698 14.3 714 10 132 10.8 852 27.7 188 921 15.4 88 761 10.6 10 829 12.4 89 331 28.3
≥70 1549 12.1 497 6 92 7.5 960 30.5 189 052 13.5 68 755 7.3 7787 7.2 112 510 30.8
Race‐ethnicity
Non‐Hispanic white 4104 66.6 2 525 65 389 65.1 1190 71.7 658 893 66.8 387 571 65.7 41 898 63.9 229 424 70.2
Non‐Hispanic black 2372 11.3 1264 9.8 228 12.9 880 14.6 66 460 11.8 30 165 10.1 4370 12.7 31925 15.7
Hispanic 2141 14.3 1476 16.3 206 14.8 459 8.6 52 600 14.9 36 917 16.8 4216 17.3 11 467 9.4
Other 1582 7.8 1193 8.9 125 7.3 264 5.1 39 473 6.6 25 850 7.3 2953 6 10 670 4.7
Education (≥25 y)
<High school 2125 14.4 1147 12.4 202 15.9 776 19.2 59 979 14.3 27 819 11.3 4637 16.1 27 523 16.7
High school graduate 1992 18.6 1113 16.7 223 21.8 656 22.7 219 700 18.5 112 232 22 14 541 25.7 92 927 31.3
Some college or AA degree 2653 27.5 1553 25.1 273 32.2 827 32.5 212 513 27.5 120 017 26.1 14 944 28.8 77 552 30.1
College graduate 2496 29.7 1784 32.2 183 22.5 529 25.4 294 669 29.8 192 146 28.5 17 373 21.9 85 150 21.5
<25 y of age 933 9.8 861 13.6 67 7.5 5 0.2 30 565 9.9 28 289 12.1 1942 7.4 334 0.3
Household incomee
<$35 K 3939 29.6 2298 27.3 414 34.8 1227 33.9 271 102 29.5 139 381 31.8 20 420 39.5 111 301 38.8
≥$35 K 5792 67 3856 69.2 497 62.1 1439 62.7 432 555 67.1 278 388 55.6 26 647 49.2 127 520 46.8
Missing income 468 3.4 304 3.5 37 3.1 127 3.4 113 769 3.4 62 734 12.5 6370 11.3 44 665 14.4
Health insurancef
Yes 7916 81.1 4710 77.3 673 76.4 2533 92.9 743 440 85.7 427 802 83.4 45 221 78.5 270 417 93.3
No 2283 18.9 1748 22.6 275 23.6 260 7.1 73 986 14.3 52 701 16.6 8216 21.5 13 069 6.7
Current smokerg
Yes 2080 19.9 1369 20.3 262 28.4 449 15.4 125 649 17.6 77 160 17.9 11 863 25.7 36 626 14.9
No 8119 80.1 5089 79.7 686 71.6 2344 84.6 691 777 82.4 403 343 82.1 41 574 74.3 246 860 85.1
Alcohol consumptionh
None 5244 45.2 3258 44 468 44.3 1518 48.7 492 647 57.7 268 440 54.3 30 605 54.6 193 602 66.8
<1 drink/day 2605 30 1879 33.6 241 27.2 485 21 222 839 29.2 150 496 32.3 14 241 27.9 58 102 21.7
≥1 drink/day 1279 15.7 820 15.3 149 18.9 310 15.6 101 940 13.2 61 567 13.3 8591 17.5 31 782 11.5
Missing alcohol 1071 9.2 501 7.1 90 9.6 480 14.7                
Any physical activityi
Yes 5098 54.4 3549 59.3 447 48.6 1102 42.9 572 367 69.5 355 608 72.4 36 697 67.8 180 062 62.7
No 5101 45.6 2909 40.7 501 51.4 1691 57.1 206 748 24.7 101 467 21.5 14 304 26.4 90 977 32.2
Missing PA 0   0   0   0   38 311 5.8 23 428 6.1 2436 5.7 12 447 5.1
Diabetesj , k
Yes 1366 10.3 416 4.7 90 7.4 860 26.8 106 318 10.9 26 029 4.5 5617 9.1 74 672 27.4
No 8833 89.7 6042 95.3 858 92.6 1933 73.2 711 108 89.1 454 474 95.5 47 820 90.9 208 814 72.6
High cholesterolj,l
Yes 3536 34.9 1482 23.9 353 38.8 1701 63.3 316 137 31.8 122 788 20.4 23 224 38.8 170 125 58.5
No 6663 65.1 4976 76.1 595 61.2 1092 36.7 501 289 68.2 357 715 79.6 30 213 61.2 113 361 41.5
History of CVDj , m
Yes 927 7.6 221 3.1 68 5.8 638 20.6 97106 9 25 449 3.8 5606 8.3 66 051 22.1
No 9272 92.4 6237 96.9 880 94.2 2155 79.4 720 320 91 455 054 96.2 47 831 91.7 217 435 77.9

BRFSS, Behavioral Risk Factor Surveillance System; CVD, cardiovascular disease; NHANES, National Health and Nutrition Examination Survey

a

Unweighted sample size (n) and weighted percent (%).

b

Unaware is defined as: NHANES: an answer of "no" to the question "Have you ever been told by a doctor, nurse, or other health professional that you have high blood pressure?"; BRFSS: an answer of "No," "Yes, but female told only during pregnancy," or "Told borderline high or pre‐hypertensive" to the question: "Have you EVER been told by a doctor, nurse, or other health professional that you have high blood pressure?"

c

Aware/Untreated is defined as: NHANES: an answer of "yes" to the question "Have you ever been told by a doctor, nurse, or other health professional that you have high blood pressure?" and an answer of no to the questions "Because of your high blood pressure/hypertension have you ever been told to take prescribed medicine?" or "Are you now taking a prescribed medicine?"; BRFSS: an answer of "Yes" to the question: "Have you EVER been told by a doctor, nurse, or other health professional that you have high blood pressure?" and an answer of "No" to the question: "Are you currently taking medicine for your high blood pressure?"

d

Aware/Treated is defined as: NHANES: an answer of "yes" to the questions "Have you ever been told by a doctor, nurse, or other health professional that you have high blood pressure?", "Because of your high blood pressure/hypertension have you ever been told to take prescribed medicine?", and "Are you now taking a prescribed medicine?"; BRFSS: An answer of "Yes" to the questions: "Have you EVER been told by a doctor, nurse, or other health professional that you have high blood pressure?" and "Are you currently taking medicine for your high blood pressure?"

e

Household Income is defined by answers to the questions (unknowns and refusals defined as "missing"): NHANES: "Now I am going to ask about the total combined income in the last 12 mo, including income from all sources we have just talked about such as wages, salaries, Social Security or retirement benefits, help from relatives and so forth. Can you tell me that amount before taxes?" (reported as a range value in dollars); BRFSS: "Is your annual household income from all sources...?" (reported as a range value in dollars)

f

Health insurance is defined by an answer of "yes"/"no" to the questions (unknowns and refusals excluded): NHANES: "Are you covered by health insurance or some other kind of health care plan?"; BRFSS: "Do you have any kind of health care coverage, including health insurance, prepaid plans such as HMOs, or government plans such as Medicare?"

g

Current smoking status is defined by answers to the questions: "Have you smoked at least 100 cigarettes in your entire life?" and "Do you now smoke cigarettes every day, some days, or not at all?" Unknowns and refusals excluded.

h

Average alcohol consumption (drinks per day) is defined by answers to the questions (unknowns and refusals defined as "missing"): NHANES: "In any one year, have you had at least 12 drinks of any type of alcoholic beverage? By a drink, I mean a 12 oz. beer, a 4 oz. glass of wine, or an ounce of liquor." and "In your entire life, have you had at least 12 drinks of any type of alcoholic beverage?" and "In the past 12 mo, how often did you drink any type of alcoholic beverage?" and "In the past 12 mo, on those days that you drank alcoholic beverages, on the average, how many drinks did you have?"; BRFSS: "During the past 30 d, have you had at least one drink of any alcoholic beverage such as beer, wine, a malt beverage or liquor?" and "During the past 30 d, how many days per week or per month did you have at least one drink of any alcoholic beverage?" and "One drink is equivalent to a 12‐ounce beer, a 5‐ounce glass of wine, or a drink with one shot of liquor. During the past 30 d, on the days when you drank, about how many drinks did you drink on the average?"

i

Leisure‐time physical activity is defined by answers to the questions (unknowns and refusals excluded): NHANES: "Over the past 30 d, did you do any vigorous activities for at least 10 minutes that caused heavy sweating, or large increases in breathing or heart rate?" and "Over the past 30 d, did you do moderate activities for at least 10 minutes that cause only light sweating or a slight to moderate increase in breathing or heart rate?"; BRFSS: "During the past month, other than your regular job, did you participate in any physical activities or exercises such as running, calisthenics, golf, gardening, or walking for exercise?"

j

Based on self‐report in NHANES to align with BRFSS.

k

Diabetes is defined by answers to the questions (unknowns and refusals excluded): NHANES: "Other than during pregnancy, have you ever been told by a doctor or health professional that you have diabetes or sugar diabetes?" Answers of "Borderline" are defined as no diabetes. BRFSS: "Have you ever been told by a doctor that you have diabetes?" Answers of "No, pre‐diabetes or borderline diabetes," or "Yes, but female told only during pregnancy" are defined as no diabetes.

l

High cholesterol is defined by answers to the questions (unknowns and refusals excluded): NHANES: "Have you ever been told by a doctor or other health professional that your blood cholesterol level was high?"; BRFSS: "Have you EVER been told by a doctor, nurse or other health professional that your blood cholesterol is high?"

m

History of CVD is defined by answers to the questions (unknowns and refusals excluded): NHANES: "Has a doctor or other health professional ever told you that you had…?": "…coronary heart disease?", "angina, also called angina pectoris?", "a heart attack (also called myocardial infarction?", "a stroke?"; BRFSS: "Has a doctor, nurse, or other health professional ever told you that you had any of the following?": "angina or coronary heart disease", "a heart attack, also called myocardial infarction", "a stroke"