Table 1 Demographic characteristics of participants (N = 477).
From: A longitudinal metabolomics study on blood mercury and depressive symptoms
Participants characteristics | Year | |
|---|---|---|
2019 | 2021 | |
Age (years), mean (SD) | 18.44 (0.58) | 20.24 (0.64) |
Sex, n (%) | ||
Male | 153 (32.08%) | 153 (32.08%) |
Female | 324 (67.92%) | 324 (67.92%) |
BMI (kg/m2), mean (SD) | 22.18 (4.71) | 22.10 (4.71) |
Household income, n (%) | ||
Low | 373 (78.20%) | 371 (77.78%) |
High | 104 (21.80%) | 106 (22.22%) |
Smoking exposure, n (%) | ||
Yes | 5 (1.05%) | 7 (1.47%) |
No | 472 (98.95%) | 470 (98.53%) |
Passive smoking exposure, n (%) | ||
Yes | 65 (13.63%) | 16 (3.35%) |
No | 412 (86.37%) | 461 (96.65%) |
Drinking exposure, n (%) | ||
Yes | 19 (3.98%) | 10 (2.10%) |
No | 458 (96.02%) | 467 (97.90%) |
Physical activity, n (%) | ||
Yes | 348 (72.96%) | 257 (53.88%) |
No | 129 (27.04%) | 220 (46.12%) |
Fish consumption, n (%) | ||
< Once a month | 180 (37.74%) | 174 (36.48%) |
≥Once a month | 297 (62.26%) | 303 (63.52%) |
PHQ-9 scores, mean (SD) | 2.81 (3.65) | 2.79 (4.10) |
Blood mercury levels (ng/mL), median (IQR) | 0.77 (0.55, 1.04) | 0.76 (0.59, 1.00) |
