Table 1.
Participant characteristics in NHANES 2011–2012, 2013–2014, and 2015–2016
| Characteristic | 2011–2012 N = 2314 |
2013–2014 N = 2505 |
2015–2016 N = 2417 |
Overall N = 7236 |
|---|---|---|---|---|
| Age (IQR) | 46 (35–59) | 46 (36–59) | 47 (36–60) | 46 (36–59) |
| Sex (%) | ||||
| Male | 1191 (51.5) | 1289 (51.5) | 1248 (51.6) | 3728 (51.5) |
| Female | 1123 (48.5) | 1216 (48.5) | 1169 (48.4) | 3508 (48.5) |
| BMI (kg/m2, %) | ||||
| ≤ 25 | 683 (38.7) | 677 (35.7) | 629 (34.2) | 1989 (36.2) |
| 25–25.9 | 567 (32.1) | 614 (32.4) | 610 (33.2) | 1791 (32.6) |
| ≥ 30 | 514 (29.1) | 606 (31.9) | 600 (32.6) | 1720 (31.3) |
| Race (%) | ||||
| Mexican | 283 (12.2) | 426 (17.0) | 460 (19.0) | 1169 (16.2) |
| Hispanic | 239 (10.3) | 235 (9.38) | 333 (13.8) | 807 (11.1) |
| White | 775 (33.5) | 972 (38.8) | 754 (31.2) | 2501 (34.6) |
| Black | 616 (26.6) | 512 (20.4) | 491 (20.3) | 1619 (22.4) |
| Other | 401 (17.3) | 360 (14.4) | 379 (15.7) | 1140 (15.7) |
| Education (%) | ||||
| High school or below | 703 (43.0) | 764 (43.6) | 790 (45.7) | 2257 (44.2) |
| College graduate or above | 931 (57.0) | 987 (56.4) | 937 (54.3) | 2855 (55.8) |
| Smoking status (%) | ||||
| Current | 253 (36.7) | 289 (37.3) | 246 (32.8) | 788 (35.6) |
| Former | 58 (8.42) | 75 (9.69) | 87 (11.6) | 220 (9.9) |
| Never | 378 (54.9) | 410 (53.0) | 417 (55.6) | 1205 (54.5) |
| Diabetes (%) | 213 (9.20) | 207 (8.26) | 269 (11.1) | 689 (9.5) |
| Hypertension (%) | 589 (32.5) | 652 (33.4) | 614 (32.3) | 1855 (32.7) |
| Heart diseases (%) | 148 (6.40) | 163 (6.51) | 174 (7.20) | 485 (6.7) |
| Malignant neoplasms (%) | 132 (5.70) | 160 (6.39) | 161 (6.66) | 453 (6.3) |
Abbreviations: N Number of cases, IQR Interquartile range, BMI Body mass index