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Total | Neighbourhood income quintile | Recent1 immigration | ||||||
---|---|---|---|---|---|---|---|---|
Q1 (highest) | Q2 | Q3 | Q4 | Q5 (lowest) | Yes | No | ||
Singleton live births (number) | 143,030 | 28,512 | 28,367 | 28,789 | 28,698 | 28,664 | 44,977 | 98,053 |
Outcomes | percent | |||||||
Preterm birth | 5.3 | 4.7 | 5.3 | 5.3 | 5.4 | 5.63 | 4.9 | 5.43 |
Low birthweight | 5.0 | 4.0 | 4.9 | 5.1 | 5.2 | 5.83 | 5.2 | 4.92 |
Full-term low birthweight | 1.9 | 1.4 | 1.9 | 1.9 | 1.9 | 2.33 | 2.2 | 1.73 |
Maternal and infant characteristics | ||||||||
Recent immigrant | 31.5 | 17.3 | 27.4 | 31.9 | 36.7 | 43.83 | 100.0 | 0.0 |
Maternal age | ||||||||
Less than 20 | 3.6 | 1.8 | 3.4 | 3.8 | 4.3 | 4.73 | 2.5 | 4.13 |
20 to 34 | 74.3 | 68.2 | 74.1 | 74.8 | 76.5 | 77.83 | 82.9 | 70.33 |
35 or more | 22.1 | 30.0 | 22.5 | 21.4 | 19.2 | 17.53 | 14.5 | 25.63 |
Maternal illness | 12.5 | 11.6 | 12.3 | 12.5 | 12.8 | 13.53 | 11.5 | 13.03 |
Cesarean section | 20.2 | 19.6 | 20.3 | 20.3 | 20.2 | 20.62 | 19.3 | 20.63 |
Gestational age (weeks) | ||||||||
Less than 28 | 0.4 | 0.2 | 0.4 | 0.3 | 0.4 | 0.53 | 0.4 | 0.43 |
28 to 37 | 4.9 | 4.5 | 4.9 | 5.0 | 5.0 | 5.13 | 4.5 | 5.13 |
38 to 41 | 94.2 | 94.8 | 94.3 | 94.2 | 94.1 | 93.8 | 94.6 | 94.13 |
42 or more | 0.5 | 0.4 | 0.5 | 0.5 | 0.5 | 0.62 | 0.6 | 0.53 |
Male infant sex | 51.3 | 51.3 | 50.8 | 51.3 | 50.6 | 51.52 | 51.3 | 51.3 |
1 within 5 years 2 p < 0.05 3 p < 0.01 Note: Chi-square tests were used for differences in proportions and the Cochran-Armitage test for trend in binomial proportions across the five neighbourhood income quintiles. Data source: Discharge Abstract Database, Canadian Institute for Health Information. Table source: Statistics Canada, 2007, "Birth outcomes by neighbourhood income and recent immigration in Toronto," Health Reports, Vol. 1, No. 4, catalogue number 82-003-XWE. |