Table 9-2
Live births, by characteristics of the mother and child, Canada — Weeks of gestation indicators

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Weeks of gestation indicators
Characteristics of mother and child Live births Gestation
Less than 37 weeks 37 to  41 weeks 42 weeks or more
  number percent
Age of mother, all ages 1 377,886 8.0 91.5 0.5
Under 20 years 15,704 8.3 90.7 0.9
20 to 34 years 293,540 7.6 91.8 0.5
35 to 49 years 68,580 9.3 90.1 0.5
Not stated 2 62 19.4 80.6 0.0
Total, parity of mother 377,886 8.0 91.5 0.5
First live birth 166,610 8.0 91.3 0.7
Second live birth 133,148 7.3 92.4 0.3
Third live birth or more 78,117 9.1 90.3 0.5
Not stated 11 0.0 45.5 0.0
Total, marital status of mother 3 377,886 8.0 91.5 0.5
Married and/or separated 229,867 7.6 91.9 0.5
Not married 106,646 8.4 91.0 0.6
Not stated 41,373 9.2 90.3 0.5
Total, birthplace of mother 377,886 8.0 91.5 0.5
Canada 275,718 8.1 91.3 0.6
Outside Canada 98,077 7.6 92.0 0.4
Not stated 4,091 8.0 91.7 0.2
Both sexes 377,886 8.0 91.5 0.5
Males 193,755 8.4 91.0 0.5
Females 184,131 7.5 91.9 0.5
Total 377,886 8.0 91.5 0.5
Single 366,070 6.4 93.0 0.5
Multiple 11,816 57.1 42.9 0.0
Total, birth weight 377,886 8.0 91.5 0.5
Less than 500 grams 378 98.4 0.3 0.3
500 to 1,499 grams 3,388 99.1 0.6 0.0
1,500 to 2,499 grams 18,920 65.8 34.1 0.0
2,500 to 4,499 grams 347,922 4.0 95.5 0.5
4,500 grams or more 7,131 0.5 97.0 2.4
Not stated 147 8.2 17.0 0.0
1.
Age of mother attained at the last birthday preceding delivery.
2.
For confidentiality reasons, live births to mothers aged 50 and over are included in the category "Age of mother, not stated." Where information is unavailable on the birth mother of children who are adopted, these records are included in the category "Age of mother, not stated."
3.
Partway through 2003, Alberta Registries amended their Registration of Birth form in such a way that Statistics Canada can no longer determine the legal marital status of those persons in common-law marriages.
Note(s):
See "Data quality, concepts and methodology — Explanatory notes for the tables".
Source(s):
Statistics Canada, Canadian Vital Statistics, Birth Database (CANSIM table 102-4513).