Table 5

Comparative characteristics of symptom stage III subjects with all other subjects at the second test

Variable descriptionStage III (n = 75)Other stages (n = 129)p value
95% CI of mean95% CI of mean
Age at follow up test44.74±2.6543.49±2.040.47
Interval (mth) between last exposure and follow up test35.68±8.5326.41±4.860.04
Interval (mth) between last exposure and initial test23.20±6.3915.52±1.780.04
Years exposed on job16.43±1.9615.50±1.760.51
% smokers at follow up test26 (34.67%)45 (34.88%)
FSBP%  =  0 at follow up test19 (25.3%)23 (17.8%)
FSBP% at follow up test59.16±8.5365.87±5.760.18
FSBP% at initial test43.87±8.8252.12±6.800.16
FSBP% Δ between tests15.28±8.1113.75±6.270.82
Baseline arm temp (°C) at follow up test32.10±0.3332.11±0.240.96
Baseline finger temp (°C) at follow up test30.48±0.5929.92±0.550.19
Baseline finger temp (°C) Δ between tests0.90±0.690.56±0.670.88
Finger temp (°C) at follow up test @ 10°C cooling25.57±0.8225.58±0.610.93
Finger temp (°C) @ 10°C cooling Δ between tests0.72±1.121.16±0.670.14
Finger temp (°C) at follow up test @ 30°C rewarm25.53±0.8825.09±0.610.45
Finger temp (°C) @ 30°C rewarm Δ between tests0.46±1.020.79±0.730.52
Finger temp (°C) at follow up test @ 10 min recovery27.84±0.9228.16±0.710.36
Finger temp°C @ 10 min recovery Δ between tests−0.12±1.061.49±0.730.03