Health Inequities in Manitoba: Is the Socioeconomic Gap

Chapter 5: Adult Health
82 University of Manitoba
Urban:
• From T1 to T8, diabetes prevalence of all urban neighbourhood income quintile groups increased
steadily and seemingly at similar rates over time. There was a much more rapid increase (i.e., steeper
slope) from the mid–1990s to the present in all urban neighbourhood income quintile groups
compared to the previous decade, where there was a slower increase (i.e., a more gradual slope).
• The disparity between U1 and U5 increased, albeit not substantially. The rate ratio of U1 compared
to U5 was 1.54 in the first time period and 1.85 in the last time period, for a statistically significant
increase of 20%. The absolute difference gap in diabetes prevalence comparing U1 to U5 also
statistically significantly increased by 173% over time, from 1.75 more persons with diabetes per
100 residents in the first time period (1984/85–1986/87) to 4.76 more persons with diabetes per 100
residents in the last time period (2005/06–2007/08).
Lorenz Curves:
Rural over time:
• In T1, 26.3% of persons with diabetes were accounted for in the 18.9% of the population in the
lowest neighbourhood income quintile group R1, with the Gini coefficient of 0.097 indicating a
statistically significant disparity.
• In T8, 28.8% of persons with diabetes were accounted for in the 18.2% of the population in the
lowest neighbourhood income quintile group R1, with the Gini coefficient of 0.143 indicating a
statistically significant disparity.
• The Gini coefficient increased from the first to the last time period (p