Table 1.
Overview of 35 subjects exposed to smoky and smokeless coal
| Smoky coal (n = 26) | Smokeless coal (n = 9) | ||
|---|---|---|---|
| Age | Mean ± SD | 57±15 | 59±14 |
| Secondhand smokea | n (%) | 26 (100.0) | 9 (100.0) |
| PM2.5 (µg/m3) | Median (IQR) | 177.2 (121.3) | 145.1 (171.5) |
| PAHsb (ng/m3) | Median (IQR) | ||
| Acenaphthylene | 620.0 (619.7) | 491.6 (323.1) | |
| Benz[a]anthracene* | 85 (81.3) | 9.4 (16.8) | |
| Benzo[a]pyrene* | 60.9 (59.4) | 10.6 (12.3) | |
| Benzo[b]fluoranthene | 96.7 (95.0) | 19.4 (28.9) | |
| Benzo[g,h,i]perylene* | 69.8 (66.0) | 12.7 (16.4) | |
| Benzo[k]fluoranthene* | 20.9 (22.8) | 5.2 (5.8) | |
| Chrysene | 69.7 (89.8) | 12.1 (16.4) | |
| Dibenz[a,h]anthracene* | 16.9 (28.9) | 1.8 (7.0) | |
| Fluoranthene | 29.8 (62.7) | 5.3 (4.9) | |
| Fluorene | 290.6 (380.0) | 250 (73.4) | |
| Indeno[1,2,3-cd]pyrene* | 37.4 (31.3) | 11.7 (12.5) | |
| Napthalene | 4416.7 (3743.6) | 4220 (1833.9) | |
| Phenanthrene | 464.2 (513.5) | 351.5 (172.5) | |
| Pyrene | 35.4 (77.4) | 6.6 (6.4) |
aStatus based on self-report.
bPersonal filters for PAH analysis available for all but one subject.
*Statistically significant (P < 0.01) between smoky and smokeless groups via Wilcoxon–Mann–Whitney test or Fisher’s exact test.