Linear regression of FSBP%10° on individual and exposure variables in the vibration exposed workers according to their subjective VWF status during follow up
| Predictors | FSBP%10° during follow up | ||
|---|---|---|---|
| Never VWF symptoms (n = 30) | Incident cases of VWF symptoms (n = 14) | Prevalent cases of VWF symptoms (n = 26)† | |
| Estimates of regression coefficients (robust standard errors) by the GEE method are shown. | |||
| †Three subjects, who had recovered from VWF, were excluded from analysis. | |||
| *p = 0.02; **p < 0.01. | |||
| Intercept | 135 (30.0) | 14.0 (38.5) | 70.9 (32.1) |
| Age (y) | −0.78 (0.59) | 0.11 (0.67) | 0.41 (0.79) |
| Smoking (pack-y) | −0.31 (0.18) | −0.09 (0.22) | 0.49 (0.26) |
| Daily vibration exposure (h) | −1.92 (1.58) | −2.00 (3.43) | −1.97 (2.55) |
| Follow up time (y) | −2.86 (1.01)** | −4.14 (1.82)* | 0.04 (1.78) |