Table 1. Participant Sociodemographic Characteristics by NHANES Cycle.
| No. of participants (weighted %) by NHANES cyclea | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1999-2000 (n = 3833) | 2001-2002 (n = 4288) | 2003-2004 (n = 3824) | 2005-2006 (n = 4029) | 2007-2008 (n = 3109) | 2009-2010 (n = 3280) | 2011-2012 (n = 3132) | 2013-2014 (n = 3020) | 2015-2016 (n = 2900) | 2017-2018 (n = 2380) | |
| Age group, y | ||||||||||
| 2-5 | 665 (21.1) | 856 (20.8) | 763 (19.8) | 902 (20.7) | 832 (22.2) | 861 (21.5) | 834 (22.0) | 677 (19.0) | 665 (19.3) | 540 (19.2) |
| 6-11 | 961 (33.7) | 1136 (34.1) | 900 (31.8) | 1012 (32.1) | 1121 (31.2) | 1154 (32.8) | 1146 (31.9) | 1047 (31.1) | 1040 (31.9) | 795 (29.8) |
| 12-19 | 2207 (45.2) | 2296 (45.2) | 2161 (48.4) | 2115 (47.1) | 1156 (46.7) | 1265 (45.6) | 1152 (46.0) | 1296 (49.8) | 1195 (48.8) | 1045 (51.0) |
| Sex | ||||||||||
| Boys | 1940 (50.9) | 2130 (50.5) | 1901 (50.4) | 1983 (50.7) | 1612 (51.3) | 1712 (51.5) | 1586 (51.0) | 1520 (51.1) | 1462 (51.0) | 1174 (50.7) |
| Girls | 1893 (49.1) | 2158 (49.5) | 1923 (49.6) | 2046 (49.3) | 1497 (48.7) | 1568 (48.5) | 1546 (49.0) | 1500 (48.9) | 1438 (49.0) | 1206 (49.3) |
| Race/ethnicity | ||||||||||
| Non-Hispanic White | 839 (58.6) | 1325 (60.3) | 1067 (62.1) | 1075 (60.6) | 991 (58.9) | 1101 (56.4) | 690 (53.9) | 811 (53.2) | 831 (53.0) | 797 (52.3) |
| Non-Hispanic Black | 1052 (14.3) | 1312 (14.2) | 1322 (15.0) | 1251 (14.4) | 788 (14.9) | 654 (13.8) | 936 (15.0) | 753 (13.6) | 654 (13.6) | 531 (12.5) |
| Mexican American | 1588 (11.2) | 1263 (12.1) | 1138 (12.7) | 1338 (13.1) | 778 (13.2) | 914 (14.9) | 600 (14.9) | 692 (16.7) | 630 (15.2) | 413 (16.5) |
| Other Hispanic | 198 (8.5) | 203 (7.3) | 126 (4.5) | 134 (4.4) | 398 (6.7) | 374 (6.5) | 363 (7.9) | 305 (7.2) | 359 (8.6) | 163 (6.8) |
| Otherb | 156 (7.5) | 185 (6.1) | 171 (5.7) | 231 (7.6) | 154 (6.4) | 237 (8.4) | 543 (8.3) | 459 (9.3) | 426 (9.5) | 476 (11.8) |
| Parental educationc | ||||||||||
| <High school | 1555 (24.6) | 1498 (24.2) | 1223 (20.3) | 1212 (18.5) | 923 (21.3) | 966 (20.4) | 846 (23.3) | 704 (17.7) | 679 (19.8) | 402 (15.8) |
| High school graduate, GED, or some college | 1638 (52.9) | 1929 (50.1) | 2001 (60.8) | 2013 (57.8) | 1587 (54.8) | 1623 (51.0) | 1498 (48.5) | 1602 (54.1) | 1487 (52.0) | 1347 (56.5) |
| College graduate | 444 (22.1) | 707 (25.2) | 448 (18.4) | 629 (23.2) | 487 (23.6) | 595 (28.3) | 677 (27.9) | 643 (27.8) | 619 (27.6) | 504 (27.7) |
| Family income to poverty ratiod | ||||||||||
| <1.30 | 1566 (36.7) | 1697 (32.4) | 1677 (33.4) | 1580 (26.9) | 1296 (33.0) | 1422 (32.6) | 1382 (36.2) | 1372 (36.8) | 1074 (29.0) | 863 (32.5) |
| 1.30-2.99 | 1010 (30.5) | 1242 (31.4) | 1131 (31.3) | 1179 (31.3) | 882 (30.5) | 847 (29.0) | 816 (29.7) | 749 (28.0) | 936 (35.6) | 709 (30.1) |
| ≥3.00 | 721 (32.8) | 1098 (36.3) | 846 (35.3) | 1092 (41.7) | 700 (36.5) | 731 (38.4) | 709 (34.1) | 704 (35.2) | 658 (35.5) | 579 (37.3) |
Abbreviations: GED, general equivalency diploma; NHANES, National Health and Nutrition Examination Survey.
a
NHANES survey weights were adjusted to generate nationally representative percentages.
b
Included Asian or Pacific Islander, Native American, and multiracial/ethnic groups.
c
Head of the household.
d
Ratio of family income to the federal poverty threshold in a particular year (eg, for family of 4, the threshold was $17 050 in 2000 and $25 100 in 2018). A higher ratio corresponds to a higher level of family income.