Table 7 Relationship between work duration, and lung function (n = 80)
Variables | Cement workers (n = 20) | Spray Painters (n = 20) | Woodworkers (n = 20) | Cleaners (n = 20) |
|---|---|---|---|---|
| Â | r-value(p-value) | r-value(p-value) | r-value(p-value) | r-value(r-value) |
Duration of Work and Lung Function Parameters | ||||
 FVC(L) | -0.36 (0.13) | 0.33 (0.16) | 0.16(0.51) | -0.26(0.26) |
 FEV1(L) | -0.46 (0.04*) | -0.15 (0.53) | 0.14 (0.57) | -0.38 (0.10) |
 PEFR(L/min) | -0.42 (0.07) | -0.01 (0.97) | 0.35 (0.14) | -0.34 (0.14) |
Duration of Work and serum level of inflammatory proteins | ||||
 Fc(mg/dL) | -0.35 (0.13) | 0.28 (0.24) | 0.21 (0.39) | 0.10 (0.58) |
 CRP Level(mg/L) | -0.35 (0.13) | 0.19 (0.42) | 0.07 (0.78) | 0.10(0.69) |