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. 2020 Nov 30;3(11):e2022933. doi: 10.1001/jamanetworkopen.2020.22933

Table 1. Cyst- and Patient-Related Factors at Diagnosis.

Characteristic No. (%)
Patient-related factors
No. 540
Female sex 337 (62.4)
Age at diagnosis, median (IQR), y 66 (58.5-72.0)
BMI, median (IQR) 24.5 (22.7-26.7)
Diabetes 75 (13.9)
Insulin use 13 (2.4)
Ever smoker 192 (35.5)
Heavy smoker (>20 pack-years) 64 (11.9)a
Alcohol drinker 166 (30.7)
Heavy alcohol drinker (>21 U/wk) 21 (3.9)
1st-degree family history of any cancer 152 (28.1)
1st-degree family history of pancreatic cancer 27 (5.0)
Personal history of previous neoplasia 141 (26.1)
Cyst-related factors
Diameter of largest BD-IPMN, median (IQR), mm 14 (10-20)
Multifocal lesions 289 (53.5)

Abbreviations: BD-IPMN, branch-duct intraductal papillary mucinous neoplasm; BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); IQR, interquartile range.

a

Data on amount of smoking missing for 1 smoker.