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31
1. GENETIC
2. PRENATAL
3. PERINATAL
4. POST-NATAL
5. SYMPTOMATIC (After birth and daring follow-up).
The following figures indicate the size of the Register
and their relative importance:—
Number on Register as at 31.12.66 1,192
(b) Number admitted to Register during 1966 1,255
(c) Corrected number of births for 1966 3,873
(d) % of births admitted to the Register during the 12
months ended 31.12.66 32.3%
(This is higher than was estimated from the
figures extracted during the first 3 months of the
Register's establishment, when approx. 25% of
births had been admitted to the Register between
1.12.65 and 28.2.66) (see Summary — Note (2)).
(e) Number removed from Register in 1966 28
(f) Cases transferred to other Authorities (but still
remaining "At Risk") 67
(g) Number of factors involved with the 1966 admissions
to the Register 1,681
This would indicate approximately 4 factors per 3 cases
being observed.
Further analysis of Case Figures
(1) % of Live Births considered At
Risk 32.3% (= 1,255 cases)
(2) % of Live Births considered At
Risk and subsequently found
to have abnormalities (of varying
types and degree of severity)
3.5% (= 46 cases)
(3) Number of cases discovered to
have a congenital abnormality
without any apparent predisposing
cause (and counted in
the Post-Natal group) 19