Nasal parameters (mucosal swelling) before work (measuring round 1) for four different exposure groups (sum of right and left side values)
| Controls n=18 | Low exposure (0.17–0.74 mg/m3) n=30 | Medium exposure (0.74–1.42 mg/m3) n=73 | High exposure (1.42 mg/m3) n=36 | |
|---|---|---|---|---|
| Swell.Amin=minimum cross sectional area; Swell.A3.3=cross sectional area at 3.3; Swell.A4.1=cross sectional area at 4.1 cm; Swell.vol0–5=volume of the nasal cavity 0–5 cm; Swell.vol2–5=volume of the nasal cavity 2–5 cm; Swell.vol0–7=volume of the nasal cavity 0–7 cm from the nostrils, medians/means (SD). | ||||
| Swell.Amin (cm2) | 0.22/0.19 (0.27) | 0.24/0.31 (0.28) | 0.25/0.26 (0.28) | 0.25/0.26 (0.22) |
| Swell.vol0–5 (cm3) | 3.04/3.57 (2.34) | 3.43/3.57 (1.41) | 2.72/3.22 (2.44) | 3.54/3.39 (1.56) |
| Swell.vol2–5 (cm3) | 3.05/3.40 (2.12) | 3.21/3.27 (1.15) | 2.57/2.98 (2.21) | 3.42/3.15 (1.35) |
| Swell.vol0–7 (cm3) | 6.28/6.54 (4.35) | 6.72/6.68 (2.40) | 5.69/6.03 (4.80) | 6.82/6.11 (3.23) |
| Swell.A3.3 (cm2) | 1.03/1.14 (0.88) | 0.94/0.96 (0.50) | 0.78/0.91 (0.92) | 0.82/0.84 (0.53) |
| Swell.A4.1 (cm2) | 1.44/1.70 (1.24) | 1.24/1.36 (0.87) | 1.26/1.28 (1.03) | 1.61/1.44 (0.66) |