Table 1 Basic characteristics of study population.
Variables | Overall | 30–59 years old | ≥ 60 years old |
|---|---|---|---|
General characteristics | |||
Gender, n (%) | |||
Males | 799 (36.4) | 351 (33.1) | 448 (39.5) |
Females | 1395 (63.6) | 709 (66.9) | 686 (60.5) |
Ethnicity | |||
Yao | 1637 (74.6) | 895 (84.4) | 742 (65.4) |
Other | 557 (25.4) | 165 (15.6) | 392 (34.6) |
Education, years, n (%) | |||
0 years | 350 (16.0) | 34 (3.2) | 316 (27.9) |
≤ 6 years | 1076 (49.0) | 499 (47.1) | 577 (50.9) |
> 6 years | 768 (35.0) | 527 (49.7) | 241 (21.3) |
Smoking status, n (%) | |||
Yes | 399 (18.2) | 172 (16.2) | 227 (20.0) |
No | 1795 (81.8) | 888 (83.8) | 907 (80.0) |
Drinking status, n (%) | |||
Yes | 701 (32.0) | 302 (28.5) | 399 (35.2) |
No | 1493 (68.0) | 758 (71.5) | 735 (64.8) |
BMI, kg/m2 | |||
< 23 | 1257 (57.3) | 530 (50.0) | 727 (64.1) |
23–27.49 | 769 (35.1) | 421 (39.7) | 348 (30.7) |
≥ 27.5 | 168 (7.7) | 109 (10.3) | 59 (5.2) |
Agricultural physical activity | |||
Yes | 1438 (65.5) | 816 (77.0) | 622 (54.9) |
No | 756 (34.5) | 244 (23.0) | 512 (45.1) |
rTL | 0.69 (0.56, 0.90) | 0.76 (0.60, 1.00) | 0.64 (0.53, 0.81) |
Energy intake (kcal/day, n = 1591) | 1435.74 (1032.52, 1972.66) | 1554.48 (1118.51, 2187.82) | 1315.91 (967.32, 1748.21) |
Dietary fiber intake (g, n = 1591) | 6.97(4.16,11.72) | 8.48(4.89,13.92) | 6.01(3.72,9.84) |
Plasma metals, (µ g/L) | |||
Cobalt (Co) | 0.25 (0.16, 0.5) | 0.29 (0.19, 0.52) | 0.21 (0.14, 0.43) |
Chromium (Cr) | 2.93 (1.88, 4.10) | 3.43 (2.49, 4.46) | 2.41 (1.63, 3.67) |
Copper (Cu) | 913.15 (796.64, 1030.03) | 889.51 (783.95, 1003.20) | 932.29 (815.66, 1056.16) |
Iron (Fe) | 1079.09 (827.42, 1340.30) | 1097.20 (827.82, 1365.43) | 1068.95 (826.83, 1322.06) |
Manganese (Mn) | 2.07 (1.55, 2.95) | 2.41 (1.79, 3.24) | 1.78 (1.43, 2.69) |
Molybdenum (Mo) | 1.60 (1.23, 2.09) | 1.50 (1.21, 1.91) | 1.71 (1.31, 2.24) |
Selenium (Se) | 109.26 (94.38, 123.89) | 107.97 (94.56, 122.1) | 110.30 (94.24, 126.68) |
Zinc (Zn) | 1082.6 (766.97, 4714.95) | 1352.95 (812.83, 6968.28) | 978.95 (736.15, 1878.04) |
