Table 1.
The participants’ characteristics by SBS symptoms.
| Characteristics | Total (N = 261) |
Nasal Symptoms (n = 66) |
Throat Symptoms (n = 38) |
Lower Respiratory Tract Symptoms (n = 28) |
Dermal Symptoms (n = 50) |
|---|---|---|---|---|---|
| n (%) | n (%) | n (%) | n (%) | n (%) | |
| Age (year), mean ± SD | 40 ± 11 | 38 ± 10 | 40 ± 12 | 37 ± 11 | 38 ± 10 |
| Gender | |||||
| Male | 107 (41.0) | 17 (25.8) | 13 (34.2) | 8 (28.6) | 14 (28.6) |
| Female | 154 (59.0) | 49 (74.2) | 25 (65.8) | 20 (71.4) | 35 (71.4) |
| Working year, median (IQR) | 9 (2–20) | 9 (3–15) | 7 (2–17) | 5 (3–15) | 9 (3–14) |
| Smoking | |||||
| Non-smoker | 225 (86.2) | 61 (92.4) | 34 (89.5) | 26 (92.9) | 45 (91.9) |
| Ex-smoker | 24 (9.2) | 3 (4.6) | 3 (7.9) | 2 (7.1) | 3 (6.1) |
| Current-smoker | 12 (4.6) | 2 (3.0) | 1 (2.6) | - | 1 (2.0) |
| Underlying disease | |||||
| None | 165 (63.2) | 38 (57.6) | 20 (52.6) | 11 (39.3) | 26 (53.1) |
| Allergic rhinitis | 31 (11.9) | 13 (19.7) | 8 (21.1) | 8 (28.6) | 7 (14.3) |
| Sinusitis | 2 (0.8) | 2 (3.0) | 2 (5.41) | - | 1 (2.0) |
| Asthma | 1 (0.4) | 1 (1.5) | 1 (2.7) | - | 1 (2.0) |
| Skin diseases | 5 (1.9) | 2 (3.0) | 1 (2.6) | 1 (3.6) | 3 (6.1) |
| Workers’ perception in working environments | |||||
| Feeling sensitive to smoke | 237 (90.8) | 62 (93.9) | 35 (92.1) | 25 (89.3) | 45 (91.8) |
| Feeling sensitive to chemical agents | 190 (80.3) | 53 (80.3) | 28 (73.7) | 22 (78.6) | 37 (75.5) |
| Working conditions | |||||
| Regular working hours per week, mean ± SD |
37 ± 8 | 40 ± 6 | 39 ± 4 | 41 ± 7 | 39 ± 4 |
| Overtime working hours per week, median (IQR) |
2 (0–5) | 2 (0–5) | 3 (0–5) | 3 (0–5) | 2 (1–5) |
| Room sizes (m3), n (%) | |||||
| ≤250 | 89 (34.10) | 26 (39.39) | 10 (26.32) | 10 (35.71) | 16 (32.65) |
| 251–400 | 60 (22.99) | 17 (25.76) | 12 (31.58) | 6 (21.43) | 14 (28.57) |
| 401–600 | 34 (13.03) | 5 (7.58) | 6 (15.79) | 4 (14.29) | 5 (10.20) |
| 601–1000 | 63 (24.14) | 16 (24.24) | 8 (21.05) | 7 (25.00) | 13 (26.53) |
| ≥1000 | 15 (5.75) | 2 (3.03) | 2 (5.26) | 1 (3.57) | 1 (2.04) |
| Number of workers per room (IQR) | 19 (10–28) | 18 (10–28) | 18 (12–28) | 18 (10–29) | 18 (10–31) |