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Table 3 Number of observed deaths (Obs), relative risk (RR)1 and 95% confidence intervals (95% CI)2 obtained by Poisson regression3 for main causes and workers' subgroups

From: Reanalysis of updated mortality among vinyl and polyvinyl chloride workers: Confirmation of historical evidence and new findings

Causes of death (ICD IX)   Technicians & Clerks (Reference) Autoclave workers PVC Baggers PVC Compound workers Other blue collar workers Total blue collar workforce4
All causes (000–999) Obs 19 25 49 72 83 229
  RR   1.58* 1.72 1.71 1.41 1.55
  (95% CI)   (0.92–2.71) (1.04–2.83) (1.09–2.67) (0.91–2.19) (1.03–2.35)
All tumors (140–208) Obs 11 14 23 38 43 118
  RR   1.60 1.53 1.59 1.26 1.42
  (95% CI)   (0.74–3.45) (0.73–3.18) (0.83–3.04) (0.67–2.39) (0.79–2.57)
Lung tumor (162) Obs 3 2 11 12 12 37
  RR   0.94 3.13 1.90 1.23 1.60
  (95% CI)   (0.19–4.61) (0.96–10.28) (0.62–5.80) (0.40–3.75) (0.54–4.75)
Lymphoid and hematopoietic tumor (200–208) Obs 0 - 4 4 6 14
  RR       
  (95% CI)       
Brain tumor (191) Obs 1 - - 2 - 2
  RR pm     1.11   0.36
  (95% BCI)     (0.10–13.03)   (0.03–4.30)
Liver tumor(155) Obs 1 7 1 5 3 16
  RR pm   9.57 0.82 2.46 1.17 2.39
  (95% BCI)   (3.71–24.68) (0.23–2.93) (0.94–6.42) (0.47–2.90) (0.63–9.11)
Liver cirrhosis (571) Obs 2 5 3 5 5 18
  RR pm   2.80 1.03 1.10 0.88 1.17
  (95% BCI)   (0.90–8.76) (0.28–3.78) (0.36–3.39) (0.29–2.67) (0.41–3.38)
Cardiovascular diseases (390–452) Obs 3 3 12 9 18 42
  RR   1.19 2.25 1.29 1.89 1.68
  (95% CI)   (0.49–2.86) (1.08–4.70) (0.63–2.64) (0.97–3.67) (0.86–3.30)
  1. 1 RRpm: mean of the posterior distribution of RR
  2. 295% BCI: 95% Bayesian credibility interval between the 2.5th and 97.5th centiles of the posterior distribution of RR.
  3. 3RRs and RRpms are adjusted by age, calendar period, employment duration and latency.
  4. 4Total blue collar workforce = Autoclave workers + PVC Compound workers + PVC Baggers + Other blue collar workers.