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Health Inequities in Manitoba: Is the Socioeconomic Gap

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Chapter 4: Child <strong>Health</strong><br />

72 University of <strong>Manitoba</strong><br />

• The disparity between U1 and U5 decreased significantly. The rate ratio of U1 compared to U5 was<br />

0.76 <strong>in</strong> <strong>the</strong> first time period and 0.82 <strong>in</strong> <strong>the</strong> last time period, for a statistically significant decrease<br />

<strong>in</strong> <strong>in</strong>equality. The absolute difference of breastfeed<strong>in</strong>g <strong>in</strong>itiation rates compar<strong>in</strong>g U1 to U5 also<br />

statistically significantly decreased over time, from around 20 per 100 fewer breastfeed children <strong>in</strong><br />

<strong>the</strong> first time period compared to 16 fewer children per 100 <strong>in</strong> <strong>the</strong> last time period.<br />

Lorenz Curves:<br />

Rural over time:<br />

• In <strong>the</strong> first time period T1, 22.1% of <strong>the</strong> breastfed newborns were <strong>in</strong> <strong>the</strong> 25.5% of <strong>the</strong> births <strong>in</strong> <strong>the</strong><br />

lowest neighbourhood <strong>in</strong>come qu<strong>in</strong>tile group R1, with <strong>the</strong> G<strong>in</strong>i coefficient of 0.040 <strong>in</strong>dicat<strong>in</strong>g a<br />

statistically significant disparity.<br />

• In <strong>the</strong> last time period T7, 22.3% of <strong>the</strong> breastfed newborns were <strong>in</strong> <strong>the</strong> 27.7% of <strong>the</strong> population <strong>in</strong><br />

<strong>the</strong> lowest neighbourhood <strong>in</strong>come qu<strong>in</strong>tile group R1, with <strong>the</strong> G<strong>in</strong>i coefficient of 0.070 <strong>in</strong>dicat<strong>in</strong>g a<br />

statistically significant disparity.<br />

• The G<strong>in</strong>i coefficient <strong>in</strong>creased from <strong>the</strong> first to <strong>the</strong> last time period (p=.0004), show<strong>in</strong>g a statistically<br />

significant <strong>in</strong>crease <strong>in</strong> <strong>in</strong>equality over that time period.<br />

Urban over time:<br />

• In <strong>the</strong> first time period T1, 20.5% of <strong>the</strong> breastfed newborns were <strong>in</strong> <strong>the</strong> 24.1% of <strong>the</strong> newborns <strong>in</strong><br />

<strong>the</strong> lowest neighbourhood <strong>in</strong>come qu<strong>in</strong>tile group U1, with <strong>the</strong> G<strong>in</strong>i coefficient of 0.051 <strong>in</strong>dicat<strong>in</strong>g a<br />

statistically significant disparity.<br />

• In <strong>the</strong> last time period T7, 23.2% of <strong>the</strong> breastfed newborns were <strong>in</strong> <strong>the</strong> 26.2% of <strong>the</strong> newborns <strong>in</strong><br />

<strong>the</strong> lowest neighbourhood <strong>in</strong>come qu<strong>in</strong>tile group U1, with <strong>the</strong> G<strong>in</strong>i coefficient of 0.039 <strong>in</strong>dicat<strong>in</strong>g a<br />

statistically significant disparity.<br />

• The G<strong>in</strong>i coefficient was statistically similar <strong>in</strong> <strong>the</strong> two time po<strong>in</strong>ts, <strong>in</strong>dicat<strong>in</strong>g that <strong>the</strong> <strong>in</strong>equality <strong>in</strong><br />

breastfeed<strong>in</strong>g stayed similar over time <strong>in</strong> <strong>the</strong> urban areas.<br />

Rural compared to urban <strong>in</strong> most recent time period:<br />

• In <strong>the</strong> most recent time period T7, <strong>the</strong>re is a statistically significantly higher G<strong>in</strong>i coefficient <strong>in</strong> rural<br />

compared to urban (0.070 vs. 0.039, p

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