From: Cigarette smoking associated with chronic pancreatitis: a case control study in China
Variable | Chronic Pancreatitis | Control | Â | P value | |
---|---|---|---|---|---|
number | percent | number | percent | Â | |
All subjects | 346 | Â | 346 | Â | Â |
Age (mean ± SD, years) | 48.97 ± 14.11 | 49.16 ± 14.40 |  | ||
< 30 (years) | 28 | 8.10% | 29 | 8.40% | 0.89 |
≥ 30 (years) | 318 | 91.90% | 317 | 91.00% | |
Gender | |||||
 Male | 267 | 77.17% | 270 | 78.03% | 0.784 |
 Female | 79 | 22.83% | 76 | 21.97% | |
Body mass index (kg/m2) | 22.46 ± 13.52 | 24. 59 ± 3.29 |  | ||
10–18.5 | 26 | 8% | 46 | 13.29% | 0.018 |
≥ 18.5 | 110 | 32% | 83 | 23.99% | |
Smoking duration (years) | |||||
  < 20 | 236 | 68.21% | 245 | 70.81% | 0.001 |
 20–30 | 58 | 16.76% | 78 | 22.54% | |
  > 30 | 52 | 15.03% | 23 | 6.65% | |
Smoking index (pack x year) | |||||
  < 400 | 260 | 75% | 291 | 84.10% | 0.001 |
 400–800 | 72 | 21% | 42 | 12.14% | |
  ≥ 800 | 14 | 4% | 13 | 3.76% | |
Drinking status | |||||
 no | 204 | 58.96% | 161 | 46.53% | 0.001 |
 yes | 142 | 41.04% | 185 | 53.47% | |
Drinking duration (Drinking years) | |||||
  < 20 | 1 | 0.29% | 50 | 14.45% | 0.001 |
 20–35 | 2 | 0.58% | 23 | 6.65% | |
  ≥ 35 | 129 | 37.28% | 94 | 27.17% | |
Alcohol intake (g/month) | |||||
 1–18 | 37 | 10.69% | 6 | 1.73% | 0.001 |
 18–90 | 53 | 15.32% | 13 | 3.76% | |
 91–180 | 42 | 12.14% | 148 | 42.77% | |
Alcohol consumption (Alcohol intakex Drinking duration) | |||||
 0 | 240 | 69.36% | 185 | 53.47% | 0.001 |
 1 | 80 | 23.12% | 158 | 45.66% | |
 3 | 26 | 7.51% | 3 | 0.87% | |
Biliary disease | |||||
 No | 210 | 60.70% | 344 | 99.4% |  |
 Yes | 136 | 39.30% | 2 | 0.6% |  |