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Table 2 Baseline clinicopathologic characteristics

From: AJCC 7th edition staging classification is more applicable than AJCC 8th edition staging classification for invasive IPMN

Parameter SEER series (N = 1216)
No. %
Age, years
 < 70 712 58.6
 ≥ 70 504 41.4
Sex
 Male 619 50.9
 Female 597 49.1
Race   
 White 1014 83.4
 Black 95 7.8
 Others 107 8.8
Location
 Head 646 53.1
 Others 570 46.9
Size (cm)a
 < 3 cm 313 36.9
 ≥ 3 cm 535 63.1
Gradeb
 Low, intermediate 635 74.9
 High 213 25.1
AJCC 7th edition
 IA 124 10.2
 IB 133 10.9
 IIA 190 15.6
 IIB 314 25.8
 III 45 3.7
 IV 410 33.7
AJCC 8th edition
 IA 155 12.7
 IB 144 11.8
 IIA 148 12.2
 IIB 207 17.0
 III 152 12.5
 IV 410 33.7
  1. SEER Surveillance, Epidemiology, and End Results program, AJCC American Joint Committee on Cancer
  2. a848 patients in the SEER database had data of size
  3. b848 patients in the SEER database had grade information