Variables | Total | FVC | Â | FEV1 | FEV1/FVC | ||
---|---|---|---|---|---|---|---|
Reduced n (%) | OR (95% CI) | Reduced n (%) | OR (95% CI) | Reduced n (%) | OR (95% CI) | ||
Gender | |||||||
 Male | 19 | 6 (31.6) | 1.00 | 6 (31.6) | 1.00 | 2 (10.5) | 1.00 |
 Female | 188 | 70 (37.2) | 1.29 (0.47–3.53) | 65 (34.6) | 1.15 (0.42–3.15) | 6 (3.2) | 0.28 (0.05–1.48) |
Age | |||||||
  < 40 years | 109 | 35 (32.1) | 1.00 | 34 (31.2) | 1.00 | 3 (2.8) | 1.00 |
  ≥ 40 years | 98 | 41 (41.8) | 1.52 (0.86–2.68) | 37 (37.8) | 1.34 (0.75–2.38) | 5 (5.1) | 1.90 (0.44–8.17) |
Educational level a | |||||||
  ≥ High school education level | 124 | 41 (33.1) | 1.00 | 39 (31.5) | 1.00 | 4 (3.2) | 1.00 |
  < High school education level | 83 | 35 (42.2) | 1.48 (0.83–2.62) | 32 (38.6) | 1.36 (0.76–2.45) | 4 (4.8) | 1.52 (0.36–6.25) |
Current department | |||||||
 Weaving | 78 | 21 (26.9) | 1.00 | 19 (24.4) | 1.00 | 3 (3.8) | 1.00 |
 Knitting | 24 | 8 (33.3) | 1.36 (0.51–3.64) | 9 (37.5) | 1.86 (0.70–4.94) | 1 (4.2) | 1.09 (0.11–10.96) |
 Carding | 13 | 4 (30.8) | 1.21 (0.34–4.34) | 4 (30.8) | 1.38 (0.38–4.99) | 0 (0.0) | 0.00 |
 Spinning | 40 | 16 (40.0) | 1.81 (0.81–4.05) | 13 (32.5) | 1.49 (0.65–3.46) | 2 (5.0) | 1.32 (0.21–8.21) |
 Twisting | 40 | 21 (52.5) | 3.00 (1.35–6.66) ** | 21 (52.5) | 3.43 (1.53–7.69) ** | 1 (2.5) | 0.64 (0.06–6.37) |
 Opening | 12 | 6 (50.0) | 2.71 (0.79–9.35) | 5 (41.7) | 2.22 (0.63–7.81) | 1 (8.3) | 2.27 (0.22–23.83) |
Service duration | |||||||
  ≤ 5 years | 54 | 8 (14.8) | 1.00 | 10 (18.5) | 1.00 | 0 (0.0) |  |
 6–10 years | 54 | 24 (44.4) | 4.60 (1.83–11.58) *** | 21 (38.9) | 2.80 (1.16–6.73) * | 3 (5.6) |  |
 11–15 years | 16 | 9 (56.3) | 7.39 (2.14–25.56) ** | 7 (43.8) | 3.42 (1.03–11.39) * | 1 (6.3) |  |
  > 15 years | 83 | 35 (42.2) | 4.19 (1.76–9.98) *** | 33 (39.8) | 2.90 (1.29–6.56) ** | 4 (4.8) |  |
Smoking status | |||||||
 No | 199 | 74 (37.2) | 1.00 | 70 (35.2) | 1.00 | 8 (4.0) |  |
 Yes | 8 | 2 (25.0) | 0.56 (0.11–2.86) | 1 (12.5) | 0.26 (0.03–2.18) | 0 (0.0) |  |
Respiratory symptoms | |||||||
 Absent | 98 | 20 (20.4) | 1.00 | 22 (22.4) | 1.00 | 5 (5.1) | 1.00 |
 Present | 109 | 56 (51.4) | 4.12 (2.22–7.64) *** | 49 (45.0) | 2.82 (1.54–5.17) *** | 3 (2.8) | 0.53 (0.12–2.26) |
Respirable dust exposure | |||||||
 Acceptable | 102 | 29 (28.4) | 1.00 | 28 (27.5) | 1.00 | 4 (3.9) | 1.00 |
 Increased | 105 | 47 (44.8) | 2.04 (1.14–3.63) * | 43 (41.0) | 1.83 (1.02–3.29) * | 4 (3.8) | 0.97 (0.24–3.99) |