Table 1.
PM2.5 concentrations (μg/m3) in specific locations of 53 hospitals before (2009) and after (2011) the Spanish smoke-free legislation; Catalonia, Spain.
| n | Median (IQR) 2009 (μg/m3) | Median (IQR) 2011 (μg/m3) | p-Value⁎ | |
|---|---|---|---|---|
| Location | ||||
| All | 362 | 12.22 (7.80–19.76) | 7.80 (4.68–11.96) | < 0.001 |
| Hall | 50 | 13.26 (11.44–22.56) | 6.24 (5.07–11.05) | < 0.001 |
| Emergency department, waiting room | 45 | 12.48 (7.02–21.32) | 5.72 (3.90–9.10) | < 0.001 |
| General medicine | 47 | 10.40 (8.32–13.52) | 8.32 (4.68–11.96) | 0.094 |
| Cafeteria | 47 | 14.56 (9.36–23.40) | 9.36 (5.72–15.08) | 0.013 |
| Fire escape | 39 | 13.00 (8.32–28.08) | 7.28 (4.68–9.88) | 0.007 |
| Dressing room | 46 | 6.50 (2.08–12.09) | 6.76 (2.60–10.40) | 0.472 |
| Main entrance | 47 | 14.04 (10.40–28.08) | 9.88 (6.76–14.04) | 0.005 |
| Outside | 41 | 11.44 (9.10–15.08) | 8.84 (7.02–16.12) | 0.134 |
IQR: interquartile ranges.
⁎
Wilcoxon test for paired samples.