Where your DNA places you among other people, and the studies behind it.
Not tailored to your result, and not medical advice
Quit or Avoid Smoking: In a pooled analysis from the International Pancreatic Cancer Case-Control Consortium, current cigarette smokers had about 2.2 times the odds of pancreatic cancer of never smokers, and the figure rose to 3.4 for 35 or more cigarettes a day. Risk fell steadily with time since quitting and was indistinguishable from never smokers roughly 20 years after cessation. The authors estimate that tobacco control could avoid 15% to 25% of pancreatic cancers, which makes smoking the largest established modifiable contributor to this disease. Annals of Oncology (PMC)
Avoid Excess Body Weight: Pooling 14 prospective cohorts, people with a BMI of 30 or above had about a 47% higher rate of pancreatic cancer than people in the 21 to 22.9 range, and every 5 kg/m2 of BMI was associated with a 14% higher rate. The highest quartile of waist-to-hip ratio carried a 35% higher rate, and higher body weight in early adulthood was also associated with higher risk. The researchers note that central fat is more strongly tied to insulin resistance and diabetes, which are themselves pancreatic cancer risk factors. These are observational associations rather than proof that losing weight lowers risk. International Journal of Cancer (PMC)
Avoid Heavy Alcohol Intake: In the same case-control consortium, drinking 9 or more alcoholic drinks a day was associated with about 60% higher odds of pancreatic cancer than abstaining or drinking less than one a day, rising to 86% higher when interviews given by relatives were excluded. Risk estimates sat close to 1 for up to 4 drinks a day, so the signal is concentrated in heavy drinking rather than light or moderate intake. The association held within groups of never, former and current smokers, which argues against it being simply a shadow of tobacco use. Annals of Oncology (PMC)
Take New-Onset Diabetes Seriously: In older adults, diabetes first diagnosed in later life has been linked to roughly an 8-fold higher rate of pancreatic cancer, and this review describes recent-onset diabetes as often a manifestation of an undetected tumor rather than a cause of it. Chronic pancreatitis carries a similar order of increase, close to 8-fold five years after diagnosis. Because this cancer is usually found at an advanced stage and 5-year survival runs only about 2% to 9%, a new diabetes diagnosis in later life without the usual explanations is worth raising with a doctor. Cancer is rarely the answer, but it is a reasonable thing to have looked at. World Journal of Gastroenterology (PMC)
Expect Little From Diet Alone: Across 14 cohorts covering 862,584 people and 2,212 pancreatic cancers, fruit and vegetable intake showed no association with risk, at a relative risk of 1.01 for each extra 100 g a day. That is the honest picture here: unlike smoking and body weight, diet composition has not held up as a lever against pancreatic cancer, and individual foods that looked protective in smaller studies did not survive pooling. The authors still describe diets rich in fruit and vegetables as important for other health reasons, which is a fair summary of where the evidence sits. American Journal of Epidemiology (PMC)
How much of this is genetic?
Genetics explains 21% of why people differ in this trait. The rest is environment, daily habits and chance.
Heritability estimate: A genome-wide analysis of pancreatic cancer (PanC4; Chen et al., Cancer Epidemiology, Biomarkers & Prevention, 2019) estimated the common-variant (SNP-based) heritability at about 21 percent, with the majority of risk attributable to non-genetic factors and known susceptibility loci explaining only a few percent
Background and further reading
Pancreatic cancer is a malignancy of the pancreas, most commonly pancreatic ductal adenocarcinoma arising from the cells that line the pancreatic ducts. It is relatively uncommon, with a lifetime risk on the order of 1 to 2 percent in the general population, but it is often diagnosed late because early disease rarely causes clear symptoms. When symptoms do appear they can include painless jaundice, upper-abdominal or back pain, unexplained weight loss, and new-onset diabetes in older adults. Incidence rises with age, with most cases diagnosed after age 60.
Genetic Basis: Most pancreatic cancer is sporadic. Genome-wide analyses estimate that common inherited variants account for roughly a fifth of the variation in susceptibility, and the specific loci identified so far explain only a few percent. Genome-wide association studies of tens of thousands of cases and controls have identified susceptibility loci near genes such as ABO (the blood-group gene), NR5A2, TERT/CLPTM1L on chromosome 5p15.33, HNF1B, and LINC-PINT, each contributing a modest effect that a polygenic score sums together. Separately, a minority of cases (roughly one in ten) cluster in families, and a smaller subset carry rare high-penetrance mutations in genes such as BRCA2, BRCA1, PALB2, ATM, CDKN2A, the Lynch-syndrome mismatch-repair genes, STK11 (Peutz-Jeghers syndrome), and PRSS1 (hereditary pancreatitis). A common polygenic score does not capture these rare high-risk mutations, which are assessed through dedicated clinical genetic testing.
Environmental and Lifestyle Factors: Non-genetic factors account for the large majority of pancreatic cancer risk. Cigarette smoking is the most consistent modifiable risk factor and is estimated to underlie a meaningful share of cases, with risk declining after quitting. Long-standing type 2 diabetes, obesity, chronic pancreatitis, and heavy alcohol use are also associated with higher risk, while a new diagnosis of diabetes in an older adult can occasionally be an early sign rather than a cause. Because early detection is difficult, not smoking, maintaining a healthy weight, staying physically active, moderating alcohol, and managing diabetes are the practical levers most people have.
The published research behind your score, and the variants it draws on.
1 published score from 1 study
The pancreatic cancer score combines 1 polygenic score drawn from 1 published study.
These traits are influenced by some of the same genes and variants as this one
Content updated August 2026.
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