Table 1.
Sex-Stratified Sociodemographic Characteristics of 71 Adolescents From Northern Italy
| Sociodemographic Characteristics | Female, n = 38 | Male, n = 33 | Total, N = 71 |
|---|---|---|---|
| Age, Years | |||
| Mean (SD) | 19.7 (2.08) | 19.1 (2.36) | 19.4 (2.22) |
| Median [min, max] | 19.7 [15.9, 23.1] | 19.1 [15.9, 23.4] | 19.4 [15.9, 23.4] |
| IQ | |||
| Mean (SD) | 103 (10.7) | 106 (9.25) | 104 (10.1) |
| Median [min, max] | 105 [78, 117] | 105 [77, 121] | 105 [77, 121] |
| SES, n (%) | |||
| Low | 5 (13.2%) | 2 (6.1%) | 7 (9.9%) |
| Medium | 25 (65.8%) | 23 (69.7%) | 48 (67.6%) |
| High | 8 (21.1%) | 8 (24.2%) | 16 (22.5%) |
| Site, n (%) | |||
| BM | 13 (34.2%) | 18 (54.5%) | 31 (43.7%) |
| GL | 13 (34.2%) | 6 (18.2%) | 19 (26.8%) |
| VC | 12 (31.6%) | 9 (27.3%) | 21 (29.6%) |
| Prenatal Mn | |||
| Mean (SD) | 0.433 (0.165) | 0.471 (0.192) | 0.451 (0.178) |
| Median [min, max] | 0.417 [0.168, 1.14] | 0.470 [0.148, 0.869] | 0.427 [0.148, 1.14] |
| Postnatal Mn | |||
| Mean (SD) | 0.137 (0.0477) | 0.119 (0.0555) | 0.129 (0.0519) |
| Median [min, max] | 0.125 [0.0486, 0.256] | 0.121 [0, 0.238] | 0.124 [0, 0.256] |
| Childhood Mn | |||
| Mean (SD) | 0.000821 (0.000422) | 0.000818 (0.000447) | 0.000820 (0.000431) |
| Median [min, max] | 0.000720 [0.000328, 0.00267] | 0.000757 [0, 0.00208] | 0.000727 [0, 0.00267] |
IQ was measured using the Wechsler Intelligence Scale for Children, 3rd edition (47). Sociodemographic characteristics did not differ between males and females (p > .05).
BM, Bagnolo Mella; GL, Garde Lake; max, maximum; min, minimum; Mn, manganese; SES, socioeconomic status; VC, Valcamonica.