Table 1: DOWN SYNDROME BY SINGLE-YEAR INTERVAL Down syndrome live births, and estimated total live births, for British C

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Table 1 Down Syndrome By Single Year Interval Down Syndrome Live Births And Estimated Total Live Births For British C 1 (267.91 KiB) Viewed 80 times

Table 1: DOWN SYNDROME BY SINGLE-YEAR INTERVAL Down syndrome live births, and estimated total live births, for British Columbia residents, 1961-1970 Maternal age in years Sum total of live births Sum total of cases 517 18 19 13,555 13,675 18,752 16 15 16 20 21 22 23 24 22,005 23,896 24,667 24,807 23,986 22 16 12 17 22 25 26 27 28 29 22,860 21,450 19,202 17,450 15,685 15 14 27 14 9 30 31 32 33 34 13,954 11,987 10,983 9,825 8,483 12 12 18 13 11 7,448 6,628 35 36 37 38 39 5,780 4,834 3,961 23 13 17 15 30 40 41 42 43 44 2,952 2,276 1,589 1,018 596 31 33 20 16 22 45 246" 327 249 11 7 Total 354,880 519 *5 mothers of age 46 years, 2 mothers of age 47 years with Down syndrome live births. From Trimble BK and Baird P A (1978) Maternal age and Down syndrome: Age-specific incidence rates by single year intervals. American Journal of Medical Genetics 2, 1-5.