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Table 2 Likelihood of chronic pancreatitis with respect to age, gender and biliary disease stratified by smoking intensity (cigarettes per day) in a retrospective case control study

From: Cigarette smoking associated with chronic pancreatitis: a case control study in China

 

Smoking intensity (cigarettes/d)

 

Smoking intensity (cigarettes/d)

 

Variable

< 20

   

≥ 20

   

OR

95.0% CI

 

P value

OR

95.0% CI

 

P value

 

Lower

Upper

  

Lower

Upper

 

All subjects

0.779

0.424

1.431

0.421

1.595

0.979

2.598

0.061

Male

0.896

0.436

1.842

0.766

1.912

1.066

3.428

0.030*

Age ≥ 30 years

0.851

0.45

1.61

0.62

1.663

1.012

2.732

0.045*

Male, Age ≥ 30 years

0.966

0.463

2.015

0.927

2.023

1.112

3.68

0.021*

Male, Age ≥ 30 years, without biliary disease

0.926

0.371

2.311

0.87

2.11

0.951

4.684

0.066

  1. *have statistical significance Note: Age- and gender-matched healthy individuals were randomly selected from the PUMCH Medical Center as control group