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Table 1 Comparison of our smoking-adjusted random-effects meta-analysis estimates with those of Boffetta et al.

From: The relation between smokeless tobacco and cancer in Northern Europe and North America. A commentary on differences between the conclusions reached by two recent reviews

 

Boffetta et al. [1]

Lee and Hamling [2]

Cancer

Na

RR (95% CI)b

Na

RR (95% CI)b

Oropharyngeal

13

1.8 (1.1–2.9)

19

1.36 (1.04–1.77)

- published since 1990

 

Not given

14

1.00 (0.83–1.20)

Oesophageal

5

1.6 (1.1–2.3)

7

1.13 (0.95–1.36)

Pancreatic

6

1.6 (1.1–2.2)

7

1.07 (0.71–1.60)

Lung

5

1.2 (0.7–1.9)

6

0.99 (0.71–1.37)

Stomach

 

Not given

8

1.03 (0.88–1.20)

Bladder

 

Not given

10

0.95 (0.71–1.29)

Overall cancer

 

Not given

7

0.98 (0.84–1.15)

  1. a Number of individual estimates considered in meta-analysis.
  2. b Smoking-adjusted estimates for any ST use.
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BMC Cancer

ISSN: 1471-2407

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