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

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)