Geraldine M. McQuillan, PhD1; Kathryn S. Porter, MD, MS1; Maria Agelli, MD, MS2; Raynard Kington, MD, PhD3
Tables
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TABLE 1: Overall interview response rates for NHANES 1999–2000 participants aged 20 or more years by demographic categories
| Total |
2721 |
1947 |
71.6 (69.9–73.3) |
3680 |
2933 |
79.7 (78.3–81.0) |
| Race/ethnicityb |
|
| Non-Hispanic
white |
1330 |
882 |
66.3 (63.8–68.9) |
1696 |
1330 |
77.3 (74.4–80.2) |
Non-Hispanic
black |
427 |
306 |
71.7 (67.4–75.9) |
811 |
627 |
77.3 (74.4–80.2) |
Mexican American |
790 |
630 |
79.8 (76.9–82.6) |
758 |
658 |
86.8 (84.4–89.2) |
Other |
174 |
129 |
74.1 (67.6–80.6) |
415 |
318 |
76.6 (72.6–80.7) |
| Gender |
|
Male |
1302 |
920 |
70.7 (68.2–73.1) |
1721 |
1349 |
78.4 (76.4–80.3) |
Female |
1419 |
1027 |
72.4 (70.1–74.7) |
1959 |
1584 |
80.9 (79.1–82.6) |
| Age |
|
20-29 |
468 |
361 |
77.1 (73.3–80.9) |
585 |
510 |
87.2 (84.5–89.9) |
30-39 |
497 |
345 |
69.4 (65.4–73.5) |
577 |
479 |
83.0 (80.0–86.1) |
40-49 |
425 |
310 |
72.9 (68.7–77.2) |
571 |
455 |
79.7 (76.4–83.0) |
50-59 |
308 |
223 |
72.4 (67.4–77.4) |
487 |
363 |
74.5 (70.7–78.4) |
60+ |
1023 |
708 |
69.2 (66.4–72.0) |
1460 |
1126 |
77.1 (75.0–79.3) |
a 95% confidence interval.
b Race/ethnicity is based on the screener collected for sampling purposes and therefore differs slightly from categories in Table 2 (see description in “Methods”
section).
TABLE 2: Consent to genetic research for NHANES 1999–2000 interviewed participants aged 20 or more years by demographic categories
| Total |
1947 |
1635 |
84.0 (82.4–85.6) |
2933 |
2501 |
85.3 (84.0–86.6) |
| Race/ethnicityb |
|
| Non-Hispanic white |
895 |
766 |
85.6 (83.3–87.9) |
1338 |
1179 |
88.1 (86.4–89.9) |
Non-Hispanic black |
302 |
221 |
73.2 (68.2–78.3) |
621 |
505 |
81.3 (78.3–84.4) |
Mexican American |
625 |
538 |
86.1 (83.4–88.8) |
658 |
548 |
83.3 (80.4–86.1) |
Other |
125 |
110 |
88.0 (82.3–93.7) |
316 |
269 |
85.1 (81.2–89.1) |
| Gender |
|
Male |
920 |
791 |
86.0 (61.5–66.8) |
1349 |
1177 |
87.3 (85.5–89.0) |
Female |
1027 |
844 |
82.2 (79.8–84.5) |
1584 |
1324 |
83.6 (81.8–85.4) |
| Age |
|
20-29 |
361 |
299 |
82.8 (78.9–86.7) |
510 |
436 |
85.5 (82.4–88.6) |
30-39 |
345 |
286 |
82.9 (78.9–86.9) |
479 |
422 |
88.1 (85.2–91.0) |
40-49 |
310 |
264 |
85.2 (81.2–89.1) |
455 |
400 |
87.9 (84.9–90.9) |
50-59 |
223 |
194 |
87.0 (82.6–91.4) |
363 |
314 |
86.5 (83.0–90.0) |
60+ |
708 |
592 |
83.6 (80.9–86.3) |
1126 |
929 |
82.5 (80.3–84.7) |
| Years of education c |
|
Less than HS |
736 |
611 |
83.0 (80.0–85.7) |
1159 |
985 |
85.0 (82.9–87.0) |
HS diploma |
375 |
307 |
81.9 (78.0–85.8) |
722 |
632 |
87.5 (85.1–90.0) |
Some college |
826 |
707 |
85.6 (83.2–87.9) |
1037 |
881 |
85.0 (82.8–87.1) |
| Language of interview d |
|
English |
1706 |
1440 |
84.4 (82.7–86.1) |
2464 |
2098 |
85.2 (83.7–86.6) |
Spanish |
236 |
191 |
80.9 (75.2–85.7) |
449 |
387 |
86.2 (83.0–89.4) |
| Poverty index e |
|
<1 |
272 |
226 |
83.1 (78.6–87.5) |
587 |
509 |
86.7 (84.0–89.5) |
≥1 |
1221 |
1066 |
87.3 (85.4–89.2) |
1832 |
1629 |
88.9 (87.5–90.4) |
a 95% confidence interval.
b Confirmed race/ethnicity based on race/ethnicity questions obtained in the household interview from the participant.
c 10 individuals with missing education in 1999, 15 in 2000. HS, high school.
d 5 interviews in other language in 1999, 20 in 2000.
e Individuals with missing poverty index had lower response rates for genetic consent (1999 n = 454, 75.6%; 2000 n = 514, 70.6%).
TABLE 3: Relative odds for lack of consent to genetic research from logistic regression
in adult participants aged 20 years and older, NHANES 1999 and 2000
| Race/ethnicityb |
2.3 (1.5–3.5) |
1.9 (1.4–2.6) |
Non-Hispanic black |
0.7 (0.4–1.1) |
1.5 (1.1–2.2) |
Non-Hispanic white |
Reference group |
Reference group |
| Sex |
|
Female |
1.4 (1.0–1.9) |
1.3 (1.0–1.7) |
Male |
Reference group |
Reference group |
| Age |
|
20-29 |
1.0 (0.6–1.6) |
0.8 (0.6–1.2) |
30-39 |
0.8 (0.5–1.3) |
0.7 (0.4–1.0) |
40-49 |
0.9 (0.6–1.4) |
0.6 (0.4–1.0) |
50-59 |
0.7 (0.4–1.3) |
0.7 (0.5–1.1) |
60+ |
Reference group |
Reference group |
| Years of education |
|
Some high school |
1.3 (0.8–2.0) |
0.7 (0.5–1.0) |
High school graduate |
1.3 (0.9–2.0) |
0.7 (0.5–0.9) |
Some college |
Reference group |
Reference group |
| Poverty index |
|
<1 |
1.3 (0.8–1.9) |
1.3 (1.0–1.8) |
≥1 |
Reference group |
Reference group |
a 95% confidence interval.
b Confirmed race/ethnicity based on race/ethnicity questions obtained in the
household interview from the participant.
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