Table 1 Characteristics of participants, according to leisure-time physical activity level
Characteristics* | Overall n = 17,093 | Leisure-time physical activity level, MET-hrs/wk | p value | |||
|---|---|---|---|---|---|---|
Q1 | Q2 | Q3 | Q4 | |||
Age, yr mean ± SE | 41.6 ± 0.3 | 43.8 ± 0.4 | 40.3 ± 0.5 | 41.6 ± 0.4 | 40.5 ± 0.4 | < 0.001 |
Gender, n (%) | < 0.001 | |||||
Male | 8363 (50.1) | 2232 (47.4) | 1788 (49.2) | 1885 (48.9) | 2458 (55.0) | |
Female | 8730 (49.9) | 2660 (52.6) | 2011 (50.8) | 2082 (51.1) | 1977 (45.0) | |
BMI, n (%) | < 0.001 | |||||
< 18.5 kg/m2 | 381 (2.1) | 124 (2.4) | 92 (2.5) | 94 (2.1) | 71 (1.5) | |
18.5 to < 22.5 kg/m2 | 2579 (16.3) | 608 (12.9) | 676 (19.1) | 578 (16.0) | 717 (17.2) | |
22.5 to < 25 kg/m2 | 2970 (18.5) | 692 (15.1) | 663 (19.1) | 733 (19.1) | 882 (20.8) | |
25 to < 30 kg/m2 | 5814 (34.1) | 1630 (33.3) | 1257 (33.1) | 1357 (34.5) | 1570 (35.3) | |
≥ 30 kg/m2 | 5349 (28.9) | 1838 (36.2) | 1111 (26.2) | 1205 (28.3) | 1195 (25.2) | |
Race/ethnicity, n (%) | < 0.001 | |||||
Mexican American | 2734 (6.8) | 869 (9.8) | 581 (5.4) | 602 (5.6) | 682 (6.6) | |
Non-Hispanic White | 8615 (73.4) | 2123 (67.4) | 2236 (78.9) | 2162 (76.3) | 2094 (71.1) | |
Hon-Hispanic Black | 3184 (9.1) | 960 (10.4) | 614 (7.4) | 704 (8.4) | 906 (10.2) | |
Others | 2560 (10.7) | 940 (12.4) | 368 (8.3) | 499 (9.8) | 753 (12.1) | |
Family income, n (%) | < 0.001 | |||||
Low | 2734 (6.8) | 869 (9.8) | 581 (5.3) | 602 (5.6) | 682 (6.6) | |
Middle | 9863 (78.4) | 2652 (73.5) | 2404 (82.9) | 2383 (80.7) | 2424 (76.6) | |
High | 4496 (14.8) | 1371 (16.7) | 814 (11.8) | 982 (13.7) | 1329 (16.9) | |
Education level, n (%) | < 0.001 | |||||
High school or less | 6565 (32.4) | 2511 (44.4) | 1248 (29.3) | 1297 (27.9) | 1509 (28.2) | |
Some college | 5653 (33.8) | 1468 (32.8) | 1328 (34.3) | 1352 (34.2) | 1505 (34.1) | |
College or more | 4875 (33.7) | 913 (22.7) | 1223 (36.4) | 1318 (37.9) | 1421 (37.7) | |
Marital status, n (%) | < 0.001 | |||||
Married/living with partner | 10,472 (64.1) | 2291 (63.8) | 2387 (64.4) | 2445 (64.2) | 2649 (64.1) | |
Never married | 4026 (23.1) | 948 (19.7) | 910 (23.9) | 946 (23.3) | 1222 (25.4) | |
Widowed/separated/divorced | 2595 (12.8) | 953 (16.5) | 502 (11.6) | 576 (12.5) | 564 (10.5) | |
Alcohol intake, n (%) | 0.14 | |||||
Nondrinker | 2098 (10.3) | 691 (11.2) | 442 (10.1) | 474 (10.4) | 491 (9.4) | |
> 0–15 g/day | 11,725 (67.3) | 3379 (69.4) | 2610 (66.6) | 2691 (66.4) | 3045 (66.7) | |
> 15 g/day | 3270 (22.5) | 822 (19.4) | 747 (23.3) | 802 (23.2) | 899 (23.9) | |
Smoking status, n (%) | < 0.001 | |||||
Never | 10,323 (59.0) | 2908 (57.9) | 2285 (58.8) | 2403 (59.2) | 2727 (60.2) | |
Former | 3640 (22.4) | 906 (19.5) | 857 (23.0) | 893 (23.3) | 984 (23.6) | |
Current | 3130 (18.6) | 1078 (22.5) | 657 (18.2) | 671 (17.5) | 724 (16.2) | |
Time of venipuncture, n (%) | < 0.001 | |||||
Morning | 14,556 (87.8) | 4322 (88.0) | 3120 (82.2) | 3316 (83.0) | 3798 (86.0) | |
Afternoon | 2066 (11.9) | 485 (10.0) | 512 (12.7) | 535 (13.2) | 534 (11.7) | |
Evening | 471 (3.3) | 85 (2.0) | 167 (2.8) | 116 (2.3) | 103 (1.8) | |
Survey year, n (%) | < 0.001 | |||||
1999–2006 | 9171 (59.2) | 1028 (27.7) | 3275 (87.7) | 2844 (74.4) | 2024 (47.5) | |
2007–2018 | 7922 (40.8) | 3864 (72.3) | 524 (12.3) | 1123 (25.6) | 2411 (52.5) | |
Daily energy intake, kcal/d mean ± SE | 2176.8 ± 12.9 | 2110.9 ± 15.8 | 2227.9 ± 26.7 | 2184.8 ± 20.1 | 2183.2 ± 14.3 | < 0.001 |
Ever had arthritis, n (%) | 3030 (16.8) | 1117 (21.5) | 570 (14.4) | 656 (15.8) | 6.87 (15.5) | < 0.001 |