| 1 | A | B | C | D | E | F | G | H | I | J | K |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 2 | singleton live births and rate of small-for-gestational-age (sga) birth and preterm birth (ptb), by selected characteristics, canada, 2004 through 2006 |  |  |  |  |  |  |  |  |  |  |
| 3 | characteristics | total singleton births |  |  |  | small-for-gestational-age |  |  | preterm |  |  |
| 4 |  | number | % | 95% confidence interval |  | rate per 100 births | 95% confidence interval |  | rate per 100 births | 95% confidence interval |  |
| 5 |  |  |  | from | to |  | from | to |  | from | to |
| 6 | total | 127,694 | 100.0 | .. | .. | 8.2 | 8.1 | 8.4 | 6.4 | 6.3 | 6.5 |
| 7 | child sex |  |  |  |  |  |  |  |  |  |  |
| 8 | male | 65,324 | 51.4 | 51.2 | 51.5 | 8.4 | 8.2 | 8.6 | 6.9 | 6.7 | 7.1 |
| 9 | female | 62,370 | 48.6 | 48.5 | 48.8 | 8.1 | 7.9 | 8.3 | 5.9 | 5.7 | 6.1 |
| 10 | child birth year |  |  |  |  |  |  |  |  |  |  |
| 11 | 2004 | 39,791 | 31.2 | 31.0 | 31.3 | 8.0 | 7.8 | 8.3 | 6.5 | 6.3 | 6.8 |
| 12 | 2005 | 63,815 | 50.2 | 50.1 | 50.4 | 8.3 | 8.0 | 8.5 | 6.4 | 6.2 | 6.6 |
| 13 | 2006 | 24,088 | 18.6 | 18.5 | 18.7 | 8.5 | 8.1 | 8.9 | 6.3 | 6.0 | 6.7 |
| 14 | maternal age group |  |  |  |  |  |  |  |  |  |  |
| 15 | younger than 20 | 6,162 | 4.0 | 4.0 | 4.1 | 10.8 | 9.8 | 11.9 | 8.4 | 7.6 | 9.3 |
| 16 | 20 to 24 | 21,162 | 16.2 | 16.1 | 16.3 | 9.6 | 9.1 | 10.1 | 6.5 | 6.1 | 6.9 |
| 17 | 25 to 29 | 39,353 | 31.1 | 30.9 | 31.2 | 8.1 | 7.8 | 8.4 | 6.0 | 5.7 | 6.3 |
| 18 | 30 to 34 | 39,386 | 31.5 | 31.3 | 31.6 | 7.4 | 7.2 | 7.7 | 6.1 | 5.8 | 6.3 |
| 19 | 35 to 39 | 18,033 | 14.3 | 14.2 | 14.4 | 8.1 | 7.7 | 8.5 | 6.7 | 6.3 | 7.1 |
| 20 | 40 or older | 3,598 | 2.9 | 2.9 | 3.0 | 8.4 | 7.4 | 9.5 | 9.8 | 8.8 | 10.9 |
| 21 | live birth order |  |  |  |  |  |  |  |  |  |  |
| 22 | first | 56,055 | 46.5 | 46.2 | 46.8 | 10.5 | 10.2 | 10.7 | 7.3 | 7.1 | 7.6 |
| 23 | second | 44,301 | 35.3 | 35.0 | 35.5 | 6.2 | 6.0 | 6.5 | 5.2 | 5.0 | 5.5 |
| 24 | third or higher | 27,338 | 18.3 | 18.0 | 18.5 | 6.4 | 6.1 | 6.8 | 6.3 | 6.0 | 6.7 |
| 25 | region of birth |  |  |  |  |  |  |  |  |  |  |
| 26 | atlantic | 7,928 | 6.3 | 6.3 | 6.4 | 8.0 | 7.4 | 8.7 | 6.4 | 5.9 | 7.1 |
| 27 | quebec | 27,724 | 22.1 | 22.0 | 22.2 | 8.2 | 7.9 | 8.5 | 6.2 | 5.9 | 6.5 |
| 28 | ontario | 45,823 | 39.2 | 39.0 | 39.3 | 8.5 | 8.3 | 8.8 | 6.2 | 6.0 | 6.5 |
| 29 | manitoba | 7,989 | 4.2 | 4.2 | 4.3 | 8.7 | 7.9 | 9.5 | 7.3 | 6.6 | 8.0 |
| 30 | saskatchewan | 6,059 | 3.5 | 3.5 | 3.6 | 8.0 | 7.2 | 8.9 | 6.2 | 5.5 | 7.0 |
| 31 | alberta | 16,379 | 12.3 | 12.2 | 12.4 | 8.6 | 8.1 | 9.1 | 7.4 | 7.0 | 7.9 |
| 32 | british columbia | 14,204 | 12.0 | 11.9 | 12.1 | 7.2 | 6.8 | 7.7 | 5.9 | 5.4 | 6.3 |
| 33 | territories | 1,588 | 0.4 | 0.4 | 0.4 | 5.6 | 4.2 | 7.5 | 7.0 | 5.9 | 8.3 |
| 34 | maternal ethnicity |  |  |  |  |  |  |  |  |  |  |
| 35 | caucasian | 87,308 | 73.8 | 73.5 | 74.1 | 7.2 | 7.1 | 7.4 | 6.1 | 5.9 | 6.2 |
| 36 | indigenous | 17,285 | 5.9 | 5.6 | 6.2 | 6.4 | 5.8 | 6.9 | 8.2 | 7.6 | 8.8 |
| 37 | black | 3,824 | 3.4 | 3.3 | 3.5 | 11.5 | 10.5 | 12.6 | 9.2 | 8.2 | 10.3 |
| 38 | east asian | 4,945 | 4.3 | 4.2 | 4.4 | 9.8 | 9.0 | 10.7 | 5.5 | 4.9 | 6.1 |
| 39 | southeast asian | 3,211 | 2.9 | 2.7 | 3.0 | 14.4 | 13.1 | 15.8 | 9.3 | 8.3 | 10.4 |
| 40 | south asian | 6,896 | 6.1 | 6.0 | 6.3 | 15.9 | 15.1 | 16.9 | 7.0 | 6.4 | 7.7 |
| 41 | other | 4,225 | 3.7 | 3.5 | 3.8 | 9.2 | 8.4 | 10.1 | 5.7 | 4.9 | 6.5 |
| 42 | maternal marital status |  |  |  |  |  |  |  |  |  |  |
| 43 | single | 16,933 | 11.6 | 11.4 | 11.8 | 10.8 | 10.3 | 11.4 | 8.0 | 7.5 | 8.5 |
| 44 | common-law | 31,077 | 23.3 | 23.0 | 23.5 | 8.4 | 8.0 | 8.7 | 6.7 | 6.4 | 7.0 |
| 45 | married | 79,684 | 65.1 | 64.9 | 65.4 | 7.7 | 7.6 | 7.9 | 6.0 | 5.8 | 6.2 |
| 46 | maternal education |  |  |  |  |  |  |  |  |  |  |
| 47 | less than secondary graduation | 22,514 | 13.4 | 13.1 | 13.6 | 10.5 | 10.0 | 11.0 | 7.7 | 7.3 | 8.1 |
| 48 | secondary graduation | 27,197 | 22.0 | 21.8 | 22.3 | 8.6 | 8.3 | 9.0 | 6.6 | 6.3 | 7.0 |
| 49 | postsecondary diploma or certificate | 42,778 | 35.2 | 34.8 | 35.5 | 7.8 | 7.6 | 8.1 | 6.5 | 6.2 | 6.7 |
| 50 | university degree | 35,205 | 29.5 | 29.2 | 29.7 | 7.4 | 7.1 | 7.7 | 5.6 | 5.3 | 5.9 |
| 51 | maternal economic family income adequacy quintile |  |  |  |  |  |  |  |  |  |  |
| 52 | 1 | 28,111 | 20.1 | 19.8 | 20.3 | 9.9 | 9.5 | 10.3 | 7.1 | 6.7 | 7.4 |
| 53 | 2 | 25,482 | 19.9 | 19.7 | 20.2 | 8.8 | 8.5 | 9.2 | 6.3 | 6.0 | 6.7 |
| 54 | 3 | 24,807 | 19.9 | 19.7 | 20.2 | 7.9 | 7.6 | 8.3 | 6.2 | 5.9 | 6.6 |
| 55 | 4 | 24,617 | 20.1 | 19.8 | 20.3 | 7.6 | 7.2 | 7.9 | 6.1 | 5.7 | 6.4 |
| 56 | 5 | 24,677 | 20.0 | 19.8 | 20.2 | 7.0 | 6.6 | 7.3 | 6.3 | 6.0 | 6.6 |

Question: what was the percentage of the overall crude rate of small-for-gestational-age birth?
Answer: 8.2

Question: what was the percentage of the overall crude rate of preterm birth?
Answer: 6.4