Demographic data, lifestyle, and exposure characteristics
| Study 1 | Study 2 | ||||||
|---|---|---|---|---|---|---|---|
| Referent | Exposed | Referent | Exposed | ||||
| Subjects (n) | 14 | 47 | 26 | 21 | |||
| Age (y, mean (SD)) | 31.6 (2.4) | 31.2 (1.1) | 37.31-150 (1.8) | 32.1 (1.9) | |||
| Sex (% men) | 86 | 67 | 461-165 | 95 | |||
| Ethnicity (% white) | 100 | 86 | 691-160 | 100 | |||
| BMI (wt/ht2, mean (SEM)) | 25.8 (0.8) | 25.4 (0.8) | 24.6 (0.8) | 24.7 (0.8) | |||
| Drinking (g/week, mean (SEM)) | 36 (13.5) | 45 (7.5) | 36.0 (6.0) | 60.0 (6.0) | |||
| Duration of employment (y mean (SEM)) | 6.5 (2.1) | 3.8 (0.7) | 4.2 (1.0) | 5.5 (1.4) | |||
| Air styrene concentration (ppm mean (SEM)) | — | 21.8 (3.5) | — | 24.1 (5.4) | |||
| Blood styrene concentration (mg/l mean (SEM)) | — | 0.20 (0.05) | — | 0.13 (0.04) | |||