Table 2 Blood lead concentration, environmental lead level (95% CI) and renovation activities at six month intervals during early childhood
From: The contribution of housing renovation to children’s blood lead levels: a cohort study
Participant age | ||||
|---|---|---|---|---|
6 months | 12 months | 18 months | 24 months | |
Blood lead (μg/dL) * | 2.9 (2.7, 3.1) | 5.7 (5.3, 6.2) | 6.1 (5.6, 6.6) | 7.5 (7.0, 8.2) |
Blood lead ≥10μg/dL | 1.4% | 16.9% | 22.7% | 33.3% |
Blood lead ≥5μg/dL | 15.6% | 63.8% | 65.6% | 74.8% |
Floor dust lead (μg/ft2) | 12.6 (10.9-14.3) | 7.6 (6.5-8.7) | 7.8 (6.5-9.0) | 8.4 (7.0-9.7) |
Sill dust lead (μg/ft2) | 2,422 (873–3,971) | 936 (427–1,444) | 633 (405–861) | 733 (294–1,172) |
Trough dust lead (μg/ft2) | 70,662 (58,581-82,743) | 14,477 (11,002-17,952) | 13,356 (10,425-16,287) | 14,473 (10,752-18,194) |
Soil lead (μg/g) | 1,712 (1,470-1,954) | 1,536 (1,295-1,777) | 1,583 (1,340-1,826) | 1,635 (1,379-1,890) |
Paint lead (mg/cm2) | 5.0 (4.2-5.7) | 4.9 (4.1-5.8) | 4.9 (4.1-5.8) | 5.3 (4.3-6.2) |
Any interior renovation, N (%) | 60 (22.5) | 62 (23.6) | 62 (24.5) | 27 (10.8) |
Interior, sanding or scraping | 43 (15.9) | 39 (14.8) | 42 (16.6) | 15 (6.0) |
Window replacement | 18 (6.7) | 17 (6.5) | 13 (5.1) | 14 (5.6) |
Wall or ceiling replacement | 18 (6.7) | 24 (9.1) | 26 (10.2) | 12 (4.8) |
Any exterior renovation | 61 (26.6) | 71 (28.0) | 25 (10.4) | 25 (10.6) |