Centre for Longitudinal Studies

Appendix 10 (cont)

Result of manual scrutiny of all ‘true’ BCS70 multiple births (i.e.
where birth outcomes separated by no more than 3 days).

The following cases had ‘true’ multiple outcomes. All were examined manually. 26
were problematic (see table below), of which 24 were altered (column ‘Ch?’=C). All
other cases were correctly entered.

21179000

127 cases in total.

bserial Ch?Comments
00508088 C 3 babies in slots 1, 6, 11 had dates 20/7/99, 3/7/99, 20/7/99 respec. Assume triplets.

02706048 C Two babies in slots 1,6 with same birth date. Move 6 to slot 2.

03403069 C Slots 16,21 and 26 all say ‘still pregnant.’ Assume triplets, move to slots 1,2,3.

03783010 C Slots 1 and 11 both say ‘still pregnant’. Assume twins, move to slots 1,2.

03947061 C Slots 1 and 6 have same birth date. Assume twins, move to slots 1,2.

05521004 C Twins bunched in same pregnancy as baby born a year later.

05671063 C Slots 1 and 11 have same birth date. Assume twins, move to slots 1,2.

06196084 C 3 miscarriages in slots 1,6,11 dated Feb 98, Apr 98, Feb 98 respec. Assume twins+1 sep.preg.

Miscarriage, then twins 7 months later, same pregnancy. Assume OK.

7 babies (of whom two are twins). The sixth was out of chronol. Order.

Twins, plus one other baby, out of chronol. order.

Double stillbirth in slots 11 and 12 more recent than other two children. Move to 1,2.

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