Skip to main content

Table 1 Characteristics of case patients and control subjects

From: Associations between polymorphisms in folate-metabolizing genes and pancreatic cancer risk in Japanese subjects

Characteristics Case patients Control subjects P
  (N = 360) (N = 400)  
Age (mean ± SD) 67.8 ± 8.8 64.8 ± 9.5 <0.0001
Male, N (%) 215 (59.7) 226 (56.5) 0.58
Body mass index (kg/m2) (mean ± SD) 22.9 ± 3.3 22.8 ± 3.2 0.62
History of diabetes, N (%)    <0.0001
No 269 (74.7) 362 (90.5)  
Yes 87 (24.2) 35 (8.7)  
Unknown 4 (1.1) 3 (0.8)  
Smoking status, N (%)    <0.0001
Non-smokers 145 (40.2) 202 (50.5)  
Former smokers 119 (33.1) 140 (35.0)  
Current Smokers 96 (26.7) 58 (14.5)  
Alcohol drinking, N (%)    0.23
Non-drinkers 134 (37.2) 147 (36.8)  
Former drinkers 24(6.7) 16 (4.0)  
Current Drinkers 202(56.1) 237(59.2)  
Ethanol intake (g/d), median (25th, 75th percentile) 24.1 (7.8, 48.9) 17.5 (5.7, 43.4) 0.02
Dietary folate intake (μg), median (25th, 75th percentile) 338.9 (280.9, 407.6) 359.2 (293.0, 438.8) 0.0007
  1. SD, standard deviation