Table 3.
Education-related inequalities in the incidence of bladder cancer in Canada (excluding Ontario), 1992–2010 (measured based on proportion of individuals with a bachelor’s degree or above)
| Incidence rate† in each education quartile | The C (95% CI) | ||||
|---|---|---|---|---|---|
| Lowest | 2nd | 3rd | Highest | ||
| Males | |||||
| 1992 | 3.434 | 2.779 | 2.592 | 2.997 | − 0.035 (− 0.086 to 0.015) |
| 1993 | 3.572 | 2.974 | 2.658 | 3.191 | − 0.038 (− 0.088 to 0.012) |
| 1994 | 3.155 | 2.997 | 2.589 | 3.340 | − 0.006 (− 0.037 to 0.025) |
| 1995 | 3.018 | 2.929 | 2.737 | 3.248 | − 0.002 (− 0.032 to 0.029) |
| 1996 | 3.247 | 3.501 | 2.238 | 3.187 | − 0.042 (− 0.076 to − 0.009) |
| 1997 | 3.133 | 3.523 | 2.848 | 3.462 | 0.001 (− 0.030 to 0.029) |
| 1998 | 3.155 | 3.569 | 2.903 | 3.432 | − 0.004 (− 0.033 to 0.026) |
| 1999 | 3.683 | 3.774 | 2.973 | 3.242 | − 0.032 (− 0.061 to − 0.003) |
| 2000 | 3.415 | 3.552 | 3.120 | 3.414 | − 0.004 (− 0.036 to 0.028) |
| 2001 | 3.616 | 3.752 | 2.973 | 3.316 | − 0.030 (− 0.060 to − 0.001) |
| 2002 | 3.683 | 4.151 | 2.994 | 3.635 | − 0.021 (− 0.049 to 0.006) |
| 2003 | 3.705 | 3.796 | 3.287 | 3.758 | − 0.002 (− 0.032 to 0.028) |
| 2004 | 3.572 | 3.837 | 3.486 | 3.386 | − 0.012 (− 0.040 to 0.017) |
| 2005 | 3.936 | 3.879 | 3.347 | 3.339 | − 0.037 (− 0.067 to − 0.008) |
| 2006 | 4.257 | 4.176 | 3.565 | 3.598 | − 0.043 (− 0.069 to − 0.016) |
| 2007 | 3.850 | 4.176 | 3.426 | 3.645 | − 0.024 (− 0.052 to 0.004) |
| 2008 | 4.428 | 4.600 | 3.644 | 3.715 | − 0.051 (− 0.079 to − 0.023) |
| 2009 | 4.355 | 4.454 | 3.083 | 3.578 | − 0.062 (− 0.090 to − 0.034) |
| 2010 | 4.395 | 4.514 | 3.344 | 3.805 | − 0.049 (− 0.078 to − 0.020) |
| Trend (p value) | − 0.002 (0.049) | ||||
| Females | |||||
| 1992 | 0.997 | 0.816 | 0.853 | 1.197 | 0.046 (− 0.014 to 0.106) |
| 1993 | 1.077 | 0.930 | 0.965 | 1.327 | 0.040 (− 0.015 to 0.094) |
| 1994 | 0.819 | 0.930 | 0.911 | 1.242 | 0.075 (0.029 to 0.121) |
| 1995 | 0.930 | 0.973 | 0.930 | 1.213 | 0.037 (− 0.009 to 0.083) |
| 1996 | 0.886 | 1.146 | 0.873 | 1.011 | − 0.006 (− 0.050 to 0.038) |
| 1997 | 0.974 | 1.168 | 1.044 | 1.213 | 0.033 (− 0.004 to 0.070) |
| 1998 | 1.218 | 1.146 | 1.063 | 1.271 | − 0.003 (− 0.042 to 0.036) |
| 1999 | 1.062 | 1.000 | 1.088 | 1.275 | 0.042 (0.002 to 0.082) |
| 2000 | 0.997 | 1.066 | 1.129 | 1.089 | 0.020 (− 0.025 to 0.064) |
| 2001 | 1.106 | 1.153 | 1.088 | 1.298 | 0.026 (− 0.011 to 0.064) |
| 2002 | 1.062 | 1.283 | 1.067 | 1.159 | 0.005 (− 0.036 to 0.046) |
| 2003 | 1.149 | 1.370 | 1.170 | 1.275 | 0.013 (− 0.026 to 0.051) |
| 2004 | 1.134 | 1.177 | 1.094 | 1.330 | 0.025 (− 0.015 to 0.066) |
| 2005 | 1.257 | 1.280 | 1.211 | 1.219 | − 0.001 (− 0.042 to 0.039) |
| 2006 | 1.237 | 1.342 | 1.250 | 1.219 | 0.004 (− 0.035 to 0.043) |
| 2007 | 1.402 | 1.486 | 1.269 | 1.330 | − 0.016 (− 0.057 to 0.024) |
| 2008 | 1.278 | 1.321 | 1.250 | 1.375 | 0.013 (− 0.025 to 0.051) |
| 2009 | 1.527 | 1.460 | 1.260 | 1.241 | − 0.044 (− 0.078 to − 0.009) |
| 2010 | 1.429 | 1.322 | 1.043 | 1.241 | − 0.044 (− 0.082 to − 0.005) |
| Trend (p value) | − 0.004 (< 0.001) | ||||
Note: Ontario was not included in the analysis as it did not report in situ bladder cancer cases for the time period considered
†Per 10,000 population