| Men | Women | ||||||
---|---|---|---|---|---|---|---|---|
T1 (low) | T2 | T3 (high) | Trend P a | T1 (low) | T2 | T3 (high) | Trend P a | |
n | 96 | 96 | 95 | Â | 70 | 70 | 70 | Â |
Age (mean ± S.D., year) | 47.0 ± 11.2 | 43.2 ± 10.6 | 43.9 ± 11.1 | 0.052 | 44.6 ± 9.9 | 42.5 ± 10.9 | 41.0 ± 9.4 | 0.24 |
BMI (mean ± S.D., kg/m2) | 24.3 ± 3.5 | 23.2 ± 2.9 | 22.2 ± 2.7 | <0.01 | 22.2 ± 2.9 | 21.2 ± 2.8 | 20.1 ± 2.9 | < 0.01 |
Workplace (A, %)b | 25.0 | 31.3 | 40.0 | 0.08 | 24.3 | 28.6 | 11.4 | 0.06 |
Married (%) | 78.1 | 79.2 | 82.1 | 0.49 | 68.6 | 64.3 | 67.1 | 0.86 |
Job position (low, %) | 50.0 | 50.0 | 54.7 | 0.51 | 51.4 | 74.3 | 68.6 | 0.03 |
Sedentary work (%) | 84.4 | 93.8 | 91.6 | 0.09 | 68.6 | 65.7 | 71.4 | 0.72 |
Non-job physical activity (≥2 h/week, %)c | 55.2 | 32.3 | 53.7 | 0.60 | 24.3 | 25.7 | 27.1 | 0.56 |
Current smoker (%) | 39.6 | 40.6 | 41.1 | 0.84 | 2.7 | 1.4 | 8.6 | 0.09 |
Current alcohol drinker (%) | 64.6 | 66.7 | 77.9 | 0.046 | 37.1 | 51.4 | 55.7 | 0.03 |
Energy intake (kcal/day) | 1939 ± 585 | 1897 ± 534 | 1933 ± 444 | 0.93 | 1622 ± 420 | 1561 ± 432 | 1567 ± 385 | 0.43 |
Serum folate (ng/mL) median (IQR) | 5.3 (4.3 - 6.8) | 5.3 (4.3 - 6.7) | 5.2 (3.9 - 6.8) | 0.43 | 6.4 (5.4 - 7.3) | 6.4 (5.5 - 8.8) | 6.5 (5.5 - 8.8) | 0.07 |
Serum ferritin (μg/L) median (IQR) | 136.0 (84.7 - 189.5) | 153.5 (101.6 - 245.0) | 147.0 (90.2 - 211.0) | 0.61 | 28.6 (9.6 - 60.2) | 38.6 (16.7 - 89.9) | 42.1 (16.8 - 81.4) | 0.48 |