Physical examination
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Any skin problems | 78 | 57 (73.1) | 60 | 19 (31.7) | 7.50 (3.32 to 16.96) | 5.90 (2.15 to 16.22) |
Any nail problems | 78 | 47 (60.3) | 60 | 9 (15.0) | 8.79 (3.68 to 21.00) | 6.83 (2.45 to 19.04) |
Any eye problems | 78 | 39 (50.0) | 60 | 17 (28.3) | 2.20 (1.05 to 4.59) | 1.73 (0.68 to 4.40) |
Any nose/nasal problems | 78 | 9 (11.5) | 60 | 1 (1.7) | 6.62 (0.80 to 54.70) | 1.02 (0.07 to 15.17) |
Any musculoskeletal problems | 78 | 5 (6.4) | 60 | 2 (3.3) | 1.44 (0.26 to 8.04) | 0.44 (0.04 to 4.68) |
Systolic blood pressure (mm Hg)† | 66 | 113.3 (13.6) | 53 | 108.3 (11.2) | β: 2.67 (2.23), p = 0.23 | β: 2.18 (2.65), p = 0.41 |
Diastolic blood pressure (mm Hg)† | 66 | 68.9 (8.2) | 53 | 66.1 (9.3) | β: 1.24 (1.55), p = 0.43 | β: 3.43 (2.00), p = 0.09 |
Height (cm)† | 78 | 157.5 (12.3) | 54 | 155.3 (14.2) | β: −2.16 (1.55), p = 0.17 | β: −0.06 (1.98), p = 0.98 |
Weight (kg)† | 78 | 50.1 (14.3) | 60 | 46.9 (14.0) | β: −1.06 (2.09), p = 0.61 | β: 2.19 (2.70), p = 0.42 |
Body mass index (kg/m2)† | 78 | 19.8 (3.8) | 54 | 19.3 (3.3) | β: 0.62 (0.63), p = 0.80 | β: 1.00 (0.85), p = 0.24 |
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Laboratory findings
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Haemoglobin (g/l)† | 77 | 130 (10.8) | 59 | 130 (12) | β: 0.27 (0.17), p = 0.12 | β: 0.07 (0.22), p = 0.74 |
Ferritin (μg/l)† | 77 | 31.3 (19.6) | 59 | 27.5 (15.0) | β: 3.11 (3.17), p = 0.33 | β: 5.19 (4.01), p = 0.20 |
Blood lead concentration (μg/dl)† | 77 | 13.5 (6.1) | 59 | 10.2 (5.0) | β: 3.00 (1.00), p = 0.003 | β: 3.46 (1.29), p = 0.008 |
Blood lead concentration (μg/dl) | 71 | | 53 | | | |
<10 | | 15 (21.1) | | 28 (52.8) | 1.00 (Reference) | 1.00 (Reference) |
10–14 | | 34 (47.9) | | 18 (34.0) | 3.39 (1.40 to 8.21) | 2.34 (0.74 to 7.36) |
15–19 | | 13 (18.3) | | 3 (5.7) | 7.16 (1.72 to 29.74) | 6.19 (0.75 to 51.15) |
⩾20 | | 9 (12.7) | | 4 (7.5) | 3.68 (0.95 to 14.31) | 10.08 (1.31 to 77.39) |