Figure 3
Crude rate per 100 births of preterm birth, by maternal education level within income adequacy quintiles, singleton live births, Canada, 2004 through 2006

Data table for Figure 3
| rate | low | up | diff low | diff high | ||
|---|---|---|---|---|---|---|
| per 100 births | ||||||
| Q1 | E1 | 8.4 | 7.7 | 9.1 | 0.7 | 0.7 |
| E2 | 6.9 | 6.3 | 7.6 | 0.6 | 0.7 | |
| E3 | 6.7 | 6.1 | 7.5 | 0.6 | 0.8 | |
| E4 | 5.1 | 4.3 | 6.1 | 0.8 | 1.0 | |
| Q2 | E1 | 7.1 | 6.3 | 8.0 | 0.8 | 0.9 |
| E2 | 6.4 | 5.8 | 7.0 | 0.6 | 0.6 | |
| E3 | 6.4 | 5.9 | 7.0 | 0.5 | 0.6 | |
| E4 | 5.5 | 4.8 | 6.2 | 0.7 | 0.7 | |
| Q3 | E1 | 6.9 | 5.9 | 8.0 | 1.0 | 1.1 |
| E2 | 7.0 | 6.3 | 7.8 | 0.7 | 0.8 | |
| E3 | 6.2 | 5.7 | 6.7 | 0.5 | 0.5 | |
| E4 | 5.2 | 4.7 | 5.8 | 0.5 | 0.6 | |
| Q4 | E1 | 8.5 | 7.1 | 10.2 | 1.4 | 1.7 |
| E2 | 6.7 | 5.9 | 7.6 | 0.8 | 0.9 | |
| E3 | 6.4 | 5.9 | 6.9 | 0.5 | 0.5 | |
| E4 | 5.0 | 4.6 | 5.6 | 0.4 | 0.6 | |
| Q5 | E1 | 5.2 | 3.9 | 7.0 | 1.3 | 1.8 |
| E2 | 5.5 | 4.6 | 6.5 | 0.9 | 1.0 | |
| E3 | 6.7 | 6.2 | 7.4 | 0.5 | 0.7 | |
| E4 | 6.3 | 5.9 | 6.8 | 0.4 | 0.5 | |
|
I = 95% confidence interval Notes: E1=less than secondary graduation; E2=secondary graduation; E3=postsecondary diploma or certificate; E4=university degree; Q1=1st (lowest) income adequacy quintile; Q2=2nd income adequacy quintile; Q3=3rd income adequacy quintile; Q4=4th income adequacy quintile; Q5=5th (highest) income adequacy quintile. Source: 2006 Canadian Birth-Census Cohort database. |
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