Table 1.
Survey-weighted general characteristics of NHANES 2007–2010 study participants following a meat-eating, flexitarian, pescatarian or vegetarian diet (n = 8968).
| Unweighted Participants Counts (Survey-Weighted Frequencies) | ||||
|---|---|---|---|---|
| Meat-Eaters 8765 (97.7) |
Flexitarians 112 (1.3) |
Pescatarians 35 (0.4) |
Vegetarians 56 (0.6) |
|
| Age, mean a (SE) | 44.7 (0.4) | 47.4 (2.5) | 38.8 (1.8) | 37.1 (1.2) |
| Sex, n (%) | ||||
| Female | 4519 (51.6) | 69 (61.6) | 23 (65.7) | 35 (62.5) |
| Male | 4246 (48.4) | 43 (38.4) | 12 (34.3) | 21 (37.5) |
| Educational attainment, n (%) | ||||
| College or higher | 4229 (48.2) | 53 (47.3) | 23 (65.7) | 49 (87.5) |
| High school or lower | 4536 (51.8) | 59 (52.7) | 12 (34.3) | 7 (12.5) |
| Ethnicity, n (%) | ||||
| Mexican American | 1494 (17.0) | 21 (18.8) | 2 (5.7) | 5 (8.9) |
| Non-Hispanic Black | 1610 (18.4) | 17 (15.2) | 5 (14.3) | 2 (3.6) |
| Non-Hispanic White | 4427 (50.5) | 40 (35.7) | 21 (60.0) | 29 (51.8) |
| Other | 1234 (14.1) | 34 (30.4) | 7 (20.0) | 20 (35.7) |
| Body mass index (kg/m2), mean (SE) | 28.1 (0.1) | 26.1 (0.4) | 25.4 (0.7) | 24.9 (0.5) |
| Smoking status, n (%) | ||||
| Current smoker | 1884 (21.5) | 9 (8.0) | 3 (8.6) | 6 (10.7) |
| Former smoker | 2254 (25.7) | 29 (25.9) | 11 (31.4) | 11 (19.6) |
| Non-smoker | 4627 (52.8) | 74 (66.1) | 21 (60.0) | 39 (69.6) |
| Alcohol consumption, n (%) | ||||
| Binge or Heavy drinker | 2837 (32.4) | 24 (21.4) | 14 (40.0) | 15 (26.8) |
| Moderate drinker | 2686 (30.6) | 24 (21.4) | 9 (25.7) | 18 (32.1) |
| Non drinker | 1654 (18.9) | 26 (23.2) | 5 (14.3) | 6 (10.7) |
| Unknown/missing | 1588 (18.1) | 38 (33.9) | 7 (20.0) | 17 (30.4) |
| Physical activity, n (%) | ||||
| Moderate or vigorous | 3969 (45.3) | 43 (38.4) | 25 (71.4) | 35 (62.5) |
| None | 4796 (54.7) | 69 (61.6) | 10 (28.6) | 21 (37.5) |
| Vitamin B6 vitamers, mean (SE) | ||||
| PLP b (nmol/L) | 51.0 (1.1) | 49.2 (4.6) | 52.1 (3.7) | 58.2 (6.0) |
| 4-PA c (nmol/L) | 33.0 (0.7) | 34.8 (5.6) | 29.0 (2.5) | 32.7 (4.0) |
| Ratio, 4-PA/PLP | 0.6 (0.01) | 0.7 (0.1) | 0.6 (0.02) | 0.6 (0.03) |
| Dietary vitamin B6 Supplement Use d, n (%) | ||||
| No | 5975 (68.2) | 79 (70.5) | 22 (62.9) | 31 (55.4) |
| Yes | 2790 (31.8) | 33 (29.5) | 13 (37.1) | 25 (44.6) |
| Dietary vitamin B6 Intake (mg/d), mean (SE) | 1.8 (0.02) | 1.6 (0.1) | 1.6 (0.1) | 1.7 (0.05) |
| Total e vitamin B6 Intake (mg/d), mean (SE) | 2.8 (0.1) | 2.5 (0.3) | 3.3 (0.9) | 2.9 (0.3) |
a Mean values are geometric mean values; b PLP = pyridoxal-5′-phosphate; c 4-PA = 4-pyridoxic acid; d includes vitamin B6 from multivitamin and micronutrient preparations; e Total vitamin B6 intake includes dietary and supplementary vitamin B6.