Table 4.

Differentials in Suicide Mortality by Age Group and Educational Level, with 95% Confidence Intervals and p Values for Trend during the Study Periods (1993 - 2006), among Females Aged 35 and Over

CI, confiderce interval; RR, relative ratio; RII, relative index of inequality; RD, relative difference; SII, slope index of inequality.

^*Rate ratios in those with middle or high school education compared to those with college or higher education, were driven from β₂ estimates (see equation 1).

^†Rate ratios in those with no education or elementary school education compared to those with college or higher education, were driven from β₂ estimates (see equation 1).

^‡Relative index of inequality is the relative rate for the expected mortality for the lowest educated compared with the highest educated (see method).

^§Rate differences between those with middle or high school education and those with college or higher education, were driven from β₂ estimates (see equation 2).

^∥Rate differences between those with no education or elementary school education and those with college or higher education, were driven from β₂ estimates (see equation 2).

^¶Slope index of inequality is the expected rate difference of the lowest educated and the highest educated (see method).

^**Represents linear increase across the study periods for each age group by inequality index, was deriven from the period^† edu interaction term (see method).