Table 2.

Age-adjusted IRs and IRRs of small intestinal cancers according to histology, gender, race, stage, and subsite, SEER-12, 1992 to 2006

CharacteristicCarcinomasNeuroendocrine cancersSarcomasLymphomas
No.IRIRR(95% CI)No.IRIRR(95% CI)No.IRIRR(95% CI)No.IRIRR(95% CI)
Total3,4120.664,3150.831,0840.202,0230.38
Gender
    Females1,6180.551.00(Reference)2,0130.701.00(Reference)4890.171.00(Reference)7590.261.00(Reference)
    Males1,7940.801.45(1.35-1.55)2,3021.001.42(1.34-1.51)5950.241.43(1.27-1.62)1,2640.542.06(1.88-2.26)
Race*
    Whites2,3400.631.00(Reference)3,2460.881.00(Reference)7320.201.00(Reference)1,5220.421.00(Reference)
    Hispanics2540.530.84(0.73-0.96)2880.560.64(0.56-0.72)1070.180.92(0.73-1.14)1890.310.75(0.63-0.89)
    Blacks5751.292.06(1.87-2.26)6481.431.63(1.50-1.78)930.190.93(0.74-1.16)1200.240.58(0.47-0.70)
    APIs2430.480.77(0.67-0.88)1330.250.29(0.24-0.34)1520.271.36(1.13-1.62)1920.360.87(0.74-1.01)
Stage
    Localized7800.151.00(Reference:)1,5860.311.00(Reference)5200.101.00(Reference)N/AN/A
    Regional1,2920.251.66(1.51-1.81)1,4730.280.93(0.86-1.00)2240.040.43(0.37-0.50)N/AN/A
    Distant1,0620.211.36(1.24-1.49)1,0510.200.66(0.61-0.71)2580.050.50(0.43-0.58)N/AN/A
    Unspecified2780.050.36(0.31-0.42)2050.040.13(0.11-0.15)820.020.15(0.12-0.19)N/AN/A
Subsite
    Duodenum1,8880.371.00(Reference)8180.161.00(Reference)1960.041.00(Reference)3940.071.00(Reference)
    Jejunum5830.110.30(0.28-0.33)2310.040.28(0.24-0.33)2770.051.43(1.18-1.72)3140.060.81(0.70-0.94)
    Ileum4370.080.23(0.21-0.25)1,9660.382.39(2.20-2.59)2030.041.06(0.87-1.30)5070.101.29(1.13-1.47)
    Unspecified5040.100.26(0.24-0.29)1,3000.251.59(1.46-1.74)4080.082.11(1.77-2.52)8080.152.07(1.83-2.34)
Stage and subsite
    Duodenum
        Localized3560.071.00(Reference)5720.111.00(Reference)770.021.00(Reference)N/AN/A
        Regional7300.142.05(1.80-2.33)580.010.10(0.07-0.13)460.010.60(0.40-0.87)N/AN/A
        Distant5650.111.59(1.39-1.82)610.010.11(0.08-0.14)310.010.40(0.25-0.61)N/AN/A
    Jejunum
        Localized1640.031.00(Reference)760.021.00(Reference)1610.031.00(Reference)N/AN/A
        Regional2290.041.40(1.14-1.73)920.021.20(0.87-1.64)450.010.28(0.19-0.39)N/AN/A
        Distant1790.031.09(0.88-1.35)600.010.78(0.55-1.11)600.010.37(0.27-0.51)N/AN/A
    Ileum
        Localized1330.031.00(Reference)5290.101.00(Reference)990.021.00(Reference)N/AN/A
        Regional1740.031.30(1.03-1.64)8550.161.62(1.45-1.81)490.010.49(0.34-0.70)N/AN/A
        Distant1180.020.88(0.68-1.14)5440.101.03(0.91-1.16)470.010.48(0.33-0.69)N/AN/A

NOTE: IRs are age-adjusted to the 2000 U.S. standard population and expressed per 100,000 person-years. IRRs are based on unrounded rates.

Abbreviations: N/A, data not available.

  • *Whites include non-Hispanics only; Hispanics include whites only.

  • Excludes cases with unspecified stage or unspecified subsite.