Table 2.

Diversity Measures in PDAC, Controls, and IPMN.

	PDAC vs Controls			PDAC vs IPMN
Diversity Measures	PDAC (n=40)	Controls (n=58)	P value	IPMN (n=39)	P value
NP Shannon
Mean (SD)	5.05 (0.39)	5.14 (0.28)	0.24	5.14 (0.28)	0.23
Median	5.06	5.17		5.15
Range	3.87–5.64	4.44–5.64		4.63–5.67
Inverse Simpson
Mean (SD)	31.75 (15.41)	31.56 (10.15)	0.95	31.56 (10.89)	0.95
Median	31.06	31.56		31.59
Range	3.48–75.94	13.57–56.06		13.67–53.10
Number of OTUs (Richness)
Mean (SD)	580.3 (79.8)	594.6 (87.6)	0.32	598.9 (85.9)	0.40
Median	572.5	596.5		592
Range	443–728	414–837		457–772

PDAC, pancreatic ductal adenocarcinoma; IPMN, intraductal papillary mucinous neoplasm; SD, standard deviation; NP, non-parametric