Table 3.

Standardized incidence rates (per 100,000) and HRs of colorectal, pancreatic, and liver cancers by individual-level SES.

ColorectalPancreaticLiver
No. casesIncidence rate (per 100,000)HR (95% CI)No. casesIncidence rate (per 100,000)HR (95% CI)No. casesIncidence rate (per 100,000)HR (95% CI)
Education
 No formal school65364.71.00 (0.92–1.09)22820.91.00 (0.86–1.16)62268.01.00 (0.91–1.09)
 Primary school1,04861.21.07 (1.00–1.14)28316.00.84 (0.75–0.95)1,14162.81.00 (0.94–1.06)
 Middle school76462.11.18 (1.09–1.27)16113.50.83 (0.70–0.98)69752.80.92 (0.85–1.00)
 High school40961.61.09 (0.99–1.21)10216.80.94 (0.76–1.15)32047.50.79 (0.70–0.88)
 Technical school9742.10.95 (0.78–1.16)1811.90.59 (0.37–0.95)7132.70.68 (0.54–0.86)
 University90103.41.05 (0.85–1.29)134.30.49 (0.28–0.85)5325.00.61 (0.47–0.81)
Household income (RMB)
 <2,5009851.11.00 (0.81–1.24)348.81.00 (0.69–1.44)16888.01.00 (0.85–1.18)
 2,500–4,99918949.61.16 (1.00–1.35)6216.81.19 (0.92–1.55)26579.40.84 (0.74–0.96)
 5,000–9,99944654.31.31 (1.19–1.44)12314.01.22 (1.01–1.46)60668.10.85 (0.78–0.92)
 10,000–19,99990661.91.59 (1.49–1.69)21815.11.36 (1.19–1.55)84158.20.71 (0.67–0.76)
 20,000–34,99982466.61.79 (1.67–1.92)20317.81.62 (1.40–1.86)60850.60.62 (0.57–0.67)
 ≥35,00059869.91.86 (1.70–2.02)16520.21.88 (1.59–2.21)41647.60.57 (0.52–0.63)
Assets
 None14946.21.00 (0.85–1.18)5013.81.00 (0.75–1.33)26383.21.00 (0.88–1.13)
 One27355.51.22 (1.08–1.38)8514.51.22 (0.98–1.52)39874.30.98 (0.89–1.09)
 Two50059.51.38 (1.26–1.50)12715.11.23 (1.04–1.47)58163.60.95 (0.87–1.03)
 Three96066.01.55 (1.45–1.66)22715.61.35 (1.18–1.55)79358.20.86 (0.80–0.92)
 Four73764.21.53 (1.43–1.65)18116.41.39 (1.20–1.61)56751.50.75 (0.69–0.82)
 Five44269.31.66 (1.51–1.82)13521.81.89 (1.59–2.24)30244.70.67 (0.60–0.75)
  • Note: Model was stratified by sex and region (for individual-SES only) and adjusted for age at baseline, household size, and education (for household income and assets), and household income (for education). Ptrend: all <0.001 except for education and colorectal cancer (0.45).

  • Abbreviation: No., number.