Table 1.
Demographics of the study subjects
| Variable | Parquet manufacturers (n = 37) | Office workers (n = 37) |
|---|---|---|
| Age (years) | 44.9 ± 7.8 | 45.2 ± 5.4 |
| BMI (kg/m2) | 25.1 ± 3.1 | 25.8 ± 3.8 |
| Duration of employment (actual workplace, years) | 17.4 ± 4.3 | 18.1 ± 3.9 |
| Duration of employment less than 15 years | 21 (56.8%) | 19 (51.3%) |
| Duration of employmentmore than 15 years | 16 (43.2%) | 18 (48.7%) |
| Family history of asthma/chronic bronchitis | 5 (13.5%) | 4 (10.8%) |
| Environmental ETS | 18 (48.6%) | 15 (40.5%) |
| Accompanying diseases | ||
| Arterial hypertension | 5 (13.5%) | 5 (13.5%) |
| Diabetes mellitus type 2 | 2 (5.4%) | 3 (8.1%) |
| Musculoskeletal disorders | 6 (16.2%) | 4 (10.8%) |
| Peptic ulcer | 3 (8.1%) | 4 (10.8%) |
Numerical data are expressed as mean value with standard deviation; frequencies as number and percentage of study subjects with certain variable. BMI: body mass index; kg: kilogram; m: meter; ETS: exposure to tobacco smoke.