Table 2.
Differences in the concentrations and proportions of plasma arsenicals (ng/L) by demographic characteristics (N=242).
| Characteristic | N (%) | P-iAs Median (IQR) |
P-MMAs Median (IQR) |
P-DMAs Median (IQR) |
P-tAs Median (IQR) |
%P-iAs Median (IQR) |
%P-MMAs Median (IQR) |
%P-DMAs Median (IQR) |
|---|---|---|---|---|---|---|---|---|
| Sex | ||||||||
| Male | 76 (31.4) | 206.2 (150.7) | 243.0 (281.1) | 356.0 (403.0) | 838.9 (764.4) | 20.2 (19.1) | 29.8 (9.4) | 46.3 (17.5) |
| Female | 166 (68.6) | 182.8 (112.6) | 183.0 (185.9) * | 328.3 (298.9) | 690.1 (517.1) | 26.8 (22.7) | 26.2 (9.0) ** | 45.9 (15.5) |
| Age | ||||||||
| < 18 | 68 (28.1) | 219.7 (111.3) | 166.6 (235.0) | 271.6 (273.5) | 664.1 (671.2) | 30.1 (24.0) | 21.4 (9.8) | 40.9 (16.7) |
| 19 – 35 | 59 (24.4) | 171.8 (136.7) | 162.6 (143.3) | 247.3 (259.9) | 573.4 (465.2) | 25.2 (22.6) | 27.5 (9.8) | 43.1 (1.5) |
| 36 – 55 | 83 (34.3) | 183.0 (126.0) | 184.6 (169.8) | 351.9 (263.4) | 728.3 (476.4) | 23.9 (20.7) | 26.3 (9.5) | 48.5 (14.8) |
| > 55 | 32 (13.2) | 193.3 (112.9) | 348.7 (277.5) ** | 655.8 (519.4) *** | 1168.2 (865.4) *** | 14.7 (10.1) ** | 30.3 (9.5) | 54.4 (8.9) *** |
| BMI1 | ||||||||
| Underweight | 28 (11.9) | 241.4 (180.7) | 153.8 (189.0) | 234.5 (254.0) | 629.9 (595.5) | 37.2 (29.5) | 25.8 (7.5) | 41.7 (15.0) |
| Normal | 64 (27.1) | 185.6 (118.9) | 186.6 (254.7) | 296.3 (343.9) | 705.1 (684.6) | 25.2 (22.5) | 28.3 (9.1) | 41.6 (19.0) |
| Overweight | 67 (28.4) | 117.1 (143.6) | 205.0 (226.8) | 321.3 (376.5) | 731.1 (597.3) | 20.6 (19.7) | 30.0 (10.5) | 48.5 (12.6) |
| Obese | 77 (32.6) | 184.8 (89.1) | 191.1 (162.5) | 381.0 (306.0) | 750.5 (539.3) | 22.4 (19.5) * | 26.2 (9.2) ** | 50.2 (16.2) ** |
| Smoking | ||||||||
| No | 222 (91.7) | 185.4 (121.9) | 188.3 (215.3) | 337.3 (325.8) | 717.7 (610.4) | 23.6 (20.7) | 27.3 (9.3) | 46.5 (15.9) |
| Yes | 20 (8.3) | 184.4 (204.0) | 203.2 (247.0) | 332.6 (293.6) | 834.2 (517.5) | 24.5 (23.3) | 30.9 (8.2) * | 41.2 (19.4) |
| Alcohol | ||||||||
| Consumption | ||||||||
| No | 192 (79.3) | 185.0 (129.3) | 188.0 (216.0) | 337.3 (329.1) | 717.7 (607.8) | 23.6 (22.6) | 27.3 (9.2) | 46.6 (17.0) |
| Yes | 50 (20.7) | 188.7 (112.4) | 197.6 (259.5) | 332.6 (288.4) | 808.9 (576.4) | 24.1 (18.0) | 27.6 (8.8) | 43.1 (13.8) |
| Seafood | ||||||||
| Consumption2 | ||||||||
| No | 217 (90.0) | 188.9 (113.4) | 185.1 (211.6) | 324.5 (323.4) | 707.9 (596,0) | 25.9 (22.2) | 27.3 (9.3) | 45.3 (16.5) |
| Yes | 24 (10.0) | 125.0 (145.3) ** | 219.3 (229.7) | 412.8 (302.3) * | 802.8 (563.2) | 15.7 (11.2) ** | 30.2 (8.0) | 53.9 (17.3) ** |
*
: p<0.1 by Kruskal-Wallis Test;
**
: p < 0.05 by Kruskal-Wallis Test;
***
: p < 0.0001 by Kruskal-Wallis Test.
1
n = 6 missing;
2
n = 1 missing