Table 1.
Median (interquartile range) of urine As, Asb-corrected As and Cd (μg/g), and plasma Se (μg/l) levels by participants’ characteristics (n=1365).
| N | U. As | U. As (Asb-corrected) | U. Cd | P. Se | |
|---|---|---|---|---|---|
| Overall | 1365 | 61.3 (23.4, 176.9) | 6.53 (4.05, 11.38) | 0.39 (0.23, 0.65) | 84.9 (72.3, 100.1) |
| Age, years | |||||
| <50 | 663 | 49.5 (20.3, 132.7) | 6.07 (3.92, 10.87) | 0.37 (0.22, 0.64) | 84.2 (72.5, 101) |
| 50–65 | 212 | 81.3 (32.6, 223) | 7.33 (4.60, 12.32) | 0.43 (0.26, 0.70) | 88.4 (72.6, 99.4) |
| ≥65 | 490 | 104.6 (34.2, 287.4) | 6.74 (4.04, 12.09) | 0.39 (0.23, 0.66) | 83.9 (71.9, 98.5) |
| Sex | |||||
| Male | 684 | 69.1 (25.3, 189.6) | 6.57 (4.26, 11.39) | 0.42 (0.25, 0.68) | 87.1 (73.7, 103.0) |
| Women | 681 | 54.0 (21.6, 162.1) | 6.31 (3.75, 11.21) | 0.37 (0.20, 0.61) | 83.2 (71.5, 97.6) |
| BMI, kg/m2 | |||||
| <30 | 1115 | 61.7 (23.4, 178.8) | 6.62 (4.15, 11.82) | 0.39 (0.23, 0.66) | 84.8 (72.7, 100.3) |
| ≥30 | 250 | 58.6 (23.8, 157.7) | 5.89 (3.57, 9.92) | 0.38 (0.21, 0.65) | 85.0 (70.8, 98.6) |
| Smoking status | |||||
| Never | 640 | 57.1 (22.9, 188.4) | 6.31 (3.86, 10.83) | 0.35 (0.2, 0.59) | 84.3 (72.1, 98.7) |
| Former | 407 | 80.1 (27.1, 205.2) | 6.69 (4.32, 12.43) | 0.41 (0.25, 0.70) | 85.5 (71.9, 100.5) |
| Current | 318 | 53.4 (22.2, 135.9) | 6.31 (4.13, 11.86) | 0.45 (0.26, 0.69) | 85.0 (72.9, 100.6) |
| Cumulative smoking, pack-year | |||||
| 0 | 654 | 57.2 (22.3, 189) | 6.31 (3.89, 10.89) | 0.35 (0.2, 0.59) | 84.1 (71.9, 98.6) |
| 0–12 | 361 | 52.4 (20.4, 157.9) | 6.36 (4.09, 11.81) | 0.37 (0.23, 0.63) | 84.6 (70.8, 100.6) |
| ≥12 | 350 | 75.7 (32, 185.9) | 6.86 (4.28, 12.02) | 0.52 (0.3, 0.80) | 86.8 (74.2, 100.9) |
| Urine cotinine mg/dl | |||||
| <34 | 1048 | 64 (23.7, 200.7) | 6.55 (4.02, 11.14) | 0.37 (0.22, 0.62) | 84.3 (71.9, 99.6) |
| 34–500 | 72 | 50.5 (18.8, 126.3) | 4.99 (2.65, 9.80) | 0.31 (0.19, 0.63) | 91.3 (76.7, 101.6) |
| ≥500 | 245 | 56.7 (22.6, 135.5) | 6.62 (4.49, 12.07) | 0.48 (0.27, 0.78) | 84.3 (71.3, 100.1) |
| Alcohol intake | |||||
| Never | 560 | 57.2 (22.8, 165.4) | 6.46 (3.78, 11.70) | 0.40 (0.23, 0.63) | 84.1 (71.9, 99.3) |
| Former | 113 | 54.5 (17.6, 222.2) | 6.38 (4.25, 10.45) | 0.37 (0.23, 0.66) | 84.3 (72.9, 99.5) |
| Current | 692 | 63.3 (24.3, 178.7) | 6.54 (4.17, 11.29) | 0.38 (0.23, 0.66) | 85.1 (72.3, 100.5) |
| eGFR, ml/min/1.73m2 | |||||
| ≥60 | 1227 | 61.0 (23.4, 176.7) | 6.61 (4.15, 11.58) | 0.40 (0.23, 0.66) | 84.8 (72.3, 100.3) |
| <60 | 138 | 66.1 (22.9, 187.0) | 4.92 (3.04, 9.18) | 0.33 (0.19, 0.59) | 85.0 (71.5, 96.0) |
| High education | |||||
| No | 382 | 72.2 (25.7, 236.6) | 6.55 (3.77, 11.23) | 0.40 (0.23, 0.64) | 85.1 (71.2, 98.8) |
| Yes | 983 | 59.2 (22.5, 163.4) | 6.48 (4.08, 11.44) | 0.39 (0.23, 0.65) | 84.7 (72.8, 100.5) |
| Physical activity, METs min/week | |||||
| <3000 | 844 | 62.5 (25.1, 183.2) | 6.56 (4.16, 11.20) | 0.40 (0.23, 0.67) | 84.3 (72.3, 98.7) |
| ≥3000 | 521 | 58.8 (20.9, 164.9) | 6.34 (3.86, 11.41) | 0.37 (0.23, 0.63) | 85.4 (72.1, 101.8) |
Abbreviations: U. urine, P. plasma; Asb, arsenobetaine; eGFR, estimated glomerular filtration rate