Table 1.

Alveolar air and pancreatic neoplasms: description of the sample of cases and controls of ages ≥40 and ≤ 75, n.167*

	Controls (n.102)	Ductal Adenocarcinomas (n.65)
Gender
- males	51 (50%)	36 (55%)
- females	51 (50%)	29 (45%)
Age
- mean (SD)	53 (9)	61 (8)
- median (IQR)	51 (45-61)	61 (55-68)**
Preexisting or previous diseases
Arterial hypertension	12	10
diabetes mellitus	6	13
Other previous and resolved neoplasms	3	11
other pancreatic diseases	2	//
other pathologies	11	6

SD standard deviation, IQR inter-quartile range

*Differences between controls and outcome categories were calculated with Fisher exact test for dichotomous independent variables and with non-parametric Mann-Whitney rank sum test for continuous variables not distributed normally. Only significant differences (p < 0.05) are reported in the table

**Mann-Whitney: p = 0.000