Table 1. Demographic Characteristics of National Health and Nutrition Examination Survey Participants From the 2013-2014 and 2015-2016 Cycles.
| Variable | Weighted No. (%) | Sample No. (%) | ||
|---|---|---|---|---|
| 2013-2014 Cycle | 2015-2016 Cycle | 2013-2014 Cycle | 2015-2016 Cycle | |
| Age, mean (SD), y | 11.0 (2.7) | 11.1 (2.8) | 10.6 (2.7) | 10.6 (2.7) |
| Age categoriesa | ||||
| Children | 17 179 395 (53.9) | 17 025 031 (52.6) | 934 (60.5) | 894 (61.6) |
| Adolescents | 14 668 030 (46.1) | 15 315 201 (47.4) | 609 (39.5) | 558 (38.4) |
| Sex | ||||
| Male | 16 518 229 (51.9) | 17 013 628 (52.6) | 800 (51.8) | 739 (50.9) |
| Female | 15 329 196 (48.1) | 15 326 603 (47.4) | 743 (48.2) | 713 (49.1) |
| Race and ethnicity | ||||
| Mexican American | 5 621 262 (17.7) | 5 013 392 (15.5) | 375 (24.3) | 339 (23.3) |
| Non-Hispanic Asian | 1 405 593 (4.4) | 1 423 182 (4.4) | 123 (8.0) | 114 (7.9) |
| Non-Hispanic Black | 4 505 358 (14.1) | 4 178 481 (12.9) | 405 (26.2) | 315 (21.7) |
| Non-Hispanic White | 16 342 985 (51.3) | 16 797 154 (51.9) | 387 (25.1) | 392 (27.0) |
| Non-Mexican Hispanic | 2 254 022 (7.1) | 3 221 095 (10.0) | 148 (9.6) | 206 (14.2) |
| Otherb | 1 718 106 (5.4) | 1 706 927 (5.3) | 105 (6.8) | 86 (5.9) |
| Family educational level | ||||
| <9th Grade | 2 242 721 (7.2) | 2 967 160 (9.4) | 154 (10.2) | 184 (13.0) |
| 9th-11th Grade | 3 604 823 (11.6) | 3 863 995 (12.2) | 239 (15.9) | 196 (13.9) |
| High school graduate or GED | 7 132 174 (23.0) | 5 746 106 (18.2) | 351 (23.3) | 297 (21.0) |
| Some college | 9 623 541 (31.0) | 10 867 809 (34.4) | 455 (30.2) | 445 (31.4) |
| College graduate or higher | 8 443 571 (27.2) | 8 123 427 (25.7) | 307 (20.4) | 293 (20.7) |
| Ratio of family income to poverty, mean (SD) | 2.3 (1.6) | 2.5 (1.5) | 1.9 (1.5) | 2.1 (1.5) |
| Season of sample collection | ||||
| November 1 through April 30 | 15 045 091 (47.2) | 13 969 779 (43.2) | 801 (51.9) | 674 (46.4) |
| May 1 through October 31 | 16 802 334 (52.8) | 18 370 453 (56.8) | 742 (48.1) | 778 (53.6) |
Abbreviation: GED, General Educational Development.
a
Children are aged 6 to 11 years; adolescents, aged 12 to 15 years.
b
Includes other race and all non-Hispanic persons reporting more than 1 race.