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Table 2
Birth outcomes and infant and maternal characteristics, by neighbourhood income quintile and recent immigrant status, Toronto, 1996/1997 to 2000/2001

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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.