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Table 1 Socio-demographic characteristics

From: Neurocognitive impact of metal exposure and social stressors among schoolchildren in Taranto, Italy

  Total N = 299 0–1 km N = 51 1–5 km N = 55 5–10 km N = 118 10–15 km N = 75
N (%)
 Sex
  Female 161 (53.8) 39 (76.5) 29 (52.7) 55 (46.6) 38 (50.7)
 SES
  Low 124 (41.5) 35 (68.6) 26 (47.3) 38 (32.2) 25 (33.3)
  Medium 103 (34.4) 15 (29.4) 19 (34.5) 39 (33.1) 30 (40.0)
  High 72 (24.1) 1 (2.0) 10 (18.2) 41 (34.7) 20 (26.7)
Mean (SD)
  Age (yrs) 8.6 (1.5) 8.9 (1.6) 8.6 (1.4) 8.3 (1.4) 9.0 (1.5)
  Maternal SPM 65.7 (23.8) 55.3 (24.9) 63.5 (8.1) 67.6 (21.7) 71.2 (20.9)
  Distance (km) 6.3 (4.1) 0.7 (0.2) 2.7 (1.5) 7.2 (1.7) 11.5 (0.9)
  HOME 5.5 (1.8) 4.7 (1.6) 5.6 (1.7) 5.8 (1.6) 5.8 (1.7)
  1. Notes: Socio-demographic characteristics of the total population sample and divided by area of residence
  2. SPM Standard Progressive Matrices, HOME Home Observation for Measurement of the Environment