Table 1 Survey-weighted, sociodemographic and health status characteristics of adult NHANES 2007–2010 and 2017–2018 participants with available data
From: Association of dietary flavonoid intakes with prevalence of chronic respiratory diseases in adults
Characteristics | Total (n = 15,753) | Chronic respiratory diseases | P value | |
|---|---|---|---|---|
No (n = 12,911) | Yes (n = 2842) | |||
Age, years | Â | Â | Â | 0.01 |
 < 40 | 4945 (31.39) | 4067 (36.08) | 878 (35.67) |  |
 40–59 | 5151 (32.7) | 4259 (38.14) | 892 (35.02) |  |
 > 59 | 5657 (35.91) | 4585 (25.78) | 1072 (29.31) |  |
Sex, % |  |  |  |  < 0.01 |
 Female | 7995 (50.75) | 6393 (49.67) | 1602 (58.00) |  |
 Male | 7758 (49.25) | 6518 (50.33) | 1240 (42.00) |  |
Race/ethnicity, % |  |  |  |  < 0.01 |
 Mexican American | 2566 (16.29) | 2314 (9.19) | 252 (4.72) |  |
 Other Hispanic | 1598 (10.14) | 1324 (5.61) | 274 (5.03) |  |
 Non-Hispanic White | 6982 (44.32) | 5542 (66.83) | 1440 (70.07) |  |
 Non-Hispanic Black | 3251 (20.64) | 2600 (10.87) | 651 (13.03) |  |
 Other race | 1356 (8.61) | 1131 (7.50) | 225 (7.15) |  |
Education level, % | Â | Â | Â | 0.09 |
 Below high school | 4170 (26.47) | 3427 (16.13) | 743 (17.66) |  |
 High school | 3763 (23.89) | 3021 (25.00) | 742 (26.88) |  |
 Above high school | 7820 (49.64) | 6463 (58.87) | 1357 (55.46) |  |
Family PIR, % |  |  |  |  < 0.01 |
 ≤ 1.0 | 3300 (20.95) | 2582 (13.12) | 718 (17.98) |  |
 1.1–3.0 | 6820 (43.29) | 5568 (35.58) | 1252 (37.86) |  |
 > 3.0 | 5633 (35.76) | 4761 (51.30) | 872 (44.15) |  |
Smoking status, % |  |  |  |  < 0.01 |
 Never smoker | 8547 (54.26) | 7329 (57.43) | 1218 (45.13) |  |
 Former smoker | 3917 (24.87) | 3097 (24.11) | 820 (28.60) |  |
 Current smoker | 3289 (20.88) | 2485 (18.46) | 804 (26.28) |  |
Total energy intakes, kcal/day | Â | Â | Â | 0.01 |
 Tertile 1 | 5251 (33.33) | 4205 (28.47) | 1046 (32.50) |  |
 Tertile 2 | 5256 (33.37) | 4386 (34.50) | 870 (31.01) |  |
 Tertile 3 | 5246 (33.3) | 4320 (37.03) | 926 (36.49) |  |
Metabolic syndrome, % |  |  |  |  < 0.01 |
 No | 9398 (59.67) | 7846 (64.48) | 1552 (59.15) |  |
 Yes | 6353 (40.33) | 5064 (35.52) | 1289 (40.85) |  |
Supplement use, % | Â | Â | Â | 0.35 |
 No | 7918 (50.26) | 6520 (46.97) | 1398 (48.15) |  |
 Yes | 7835 (49.74) | 6391 (53.03) | 1444 (51.85) |  |
Self-reported asthma, % |  |  |  |  < 0.01 |
 No | 13,560 (86.08) | 12,911 (100.00) | 649 (21.85) |  |
 Yes | 2193 (13.92) | 0 (0.00) | 2193 (78.15) |  |
Self-reported chronic bronchitis, % |  |  |  |  < 0.01 |
 No | 14,784 (93.85) | 12,911 (100.00) | 1873 (67.55) |  |
 Yes | 969 (6.15) | 0 (0.00) | 969 (32.45) |  |
Self-reported emphysema, % |  |  |  |  < 0.01 |
 No | 15,389 (97.69) | 12,911 (100.00) | 2478 (90.01) |  |
 Yes | 364 (2.31) | 0 (0.00) | 364 (9.99) |  |