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Table 2 Baseline characteristics by Helicobacter pylori serology

From: A prospective study of Helicobacter pylori in relation to the risk for pancreatic cancer

   H. pylori serology  
Factor Category Negative Positive p-value
Age (years)   47.6
(37.3–60.6)
47.4
(37.7–60.6)
0.53*
Sex Male 144
(68.2%)
101
(72.7%)
0.38**
  Female 67
(31.8%)
38
(27.3%)
 
Time from baseline investigation to analysis (years)   25.1
(14.3–28.9)
24.8
(14.3–29.0)
0.14*
Body mass index (kg/m2)   24.0
(17.6–37.8)
24.2
(18.2–41.0)
0.82*
Smoking status Never smoker 69
(32.7%)
32
(23.0%)
0.14**
  Current smoker 96
(45.5%)
74
(53.2%)
 
  Former 46
(21.8%)
33
(23.7%)
 
Mm-MAST category† Low 97
(46.0%)
67
(48.2%)
0.81**
  Intermediate 97
(46.0%)
58
(41.7%)
 
  High 12
(5.7%)
9
(6.5%)
 
  Missing 5
(2.4%)
5
(3.6%)
 
γ-glutamyle transferase-tertiles (μkat/l) 1 (< 0.35) 87
(41.2%)
42
(30.7%)
0.14**
  2 (0.35–0.60) 66
(31.3%)
51
(37.2%)
 
  3(> 0.60) 58
(27.5%)
44
(32.1%)
 
  1. Numbers represent n with column percent in bracket except for numbers in italics which represent medians with range in brackets.
  2. *Mann-Whitney U-test ** Chi-square test.
  3. †Mm-MAST, Malmö modification of the brief Michigan Alcoholism Screening Test.
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