Centre for Longitudinal Studies



17785053    17795029    17832023    20083000    20322000    20503000

20527000    21644000
278 cases in total.

On manual scrutiny, 142 of these were plausible, e.g. two miscarriages seven months
apart, listed in separate pregnancies.

However, the following 136 cases were problematic in some way or other. The
middle column contains a ‘C’ if the case record was changed by this cleaning
exercise.

bserial Ch?Comments

00117080

2 live births separated by 7 months, diff pregs. Pregf=3 (i.e.‘on time’) for second. Assume OK.

00250035

00467093

C Miscarriage, live birth 4 months later, diff.preg. Move to same pregnancy.

Two live births 6.5 months apart, diff.pregs. Pregf=1 (i.e.‘early’) for second. Assume OK.

00665097

00680073

C Abortion, live birth 5 months later, diff.preg. Pregf=2 (late) for second. Move to same preg.

Miscarriage, then live birth 6 months later, same preg. Assume OK.

00700040

00757048

C Miscarriage, then live birth 7 months later, same preg. Assume OK, but re-order.

Two live births 7 months apart, diff.pregs. Pregf=1 (i.e.‘early’) for second. Assume OK.

00820070

00831021

C Abortion, live birth 4 months later, diff.preg. Pregf=2 (late) for second. Move to same preg.

Miscarriage, live birth 8 months later, diff. preg. Pregf=3 (‘on time’) for second. Assume OK.

00912021

00947026

00951051

C Two miscarriages in consecutive months, same preg. Assume OK, but re-order.

Two live births 8 months apart, diff.pregs. Pregf=1 (i.e.‘early’) for second. Assume OK.

Two live births 8 months apart, diff.pregs. Pregf=3 (‘on time’) for second. Assume OK.

01005054

01069012

C Abortion 5 months after live birth, diff preg. OK, but re-order.

Miscarriage, then live birth 6 months later, same preg. Assume OK.

01266041

C Miscarriage, then live birth 6 months later, same preg. Assume OK, but order wrong.

01445068

01453094

01628096

C Miscarriage 3 months after live birth, diff. preg, so OK, but order wrong.

Miscarriage, live birth 7 months later, diff. preg. Pregf=1 (‘early’) for second. Assume OK .

2 births 3 months apart, diff.pregs. Pregf=2 (i.e.‘late’) for both. Must be date error. Leave.

01695003

01739024

01761051

C Miscarr, live birth 7 months later,same preg. Pregf=early for second. Assume OK, but re-order
Miscarriage, then live birth 7 months later, diff.preg. Pregf=early for second. Assume OK.
Miscarriage, then live birth 7 months later, diff.preg. Pregf=’on time’ for second. Assume OK.

01840000

C 2 miscarriages 6 months apart, diff.preg. Assume OK, but re-order.

01859054

C Abortion 3 months after live birth, diff. preg, so OK, but order wrong.

01949055

02100033

02346044

C Abortion 1 month after live birth, diff. preg, so OK, but order wrong.

Miscarr, live birth 5 months later, same preg. Pregf=early for second. Assume OK.

Miscarr, live birth 8 months later, same preg. Pregf=late for second. Assume OK.

02713099

C Miscarr, live birth 6 months later, diff. preg. Pregf=late for second. Move to same preg.

03121039

C 2 livebths 3 months apart, diff.pregs. Pregf=on time for both. V.strange. Leave, but re-order.

03279000

C Live birth 15/5/89, two miscarr. also in 89 (no stated month). Assume separate pregs, re-order.

03349048

C Miscarriage 4 months after live birth, diff. preg, so OK, but order wrong.

03379077

03735080

03796187

C Miscarr, live birth 6 months later, same preg. Assume OK, but order wrong.

Miscarr.same month as live birth(on time). Must be stillbirth, or (probably) date error. Leave.

Miscarriage, then live birth 6 months later, same preg. Assume OK.

03997042

C 2 miscarriages 3 months apart, diff.preg. Assume OK, but re-order.

04046069

04222070

04277027

C 3 miscarriages in different years bunched in same pregnancy. Separate, and re-order.

2 live births 11 weeks apart, sep. preg. 1st 8lb 4 oz, 2nd ‘early’, 3lb. Must be date error. Leave.

2 live births 10 weeks apart, sep. preg. 1st 6lb 9, 2nd ‘late’, 8lb 12. Must be date error. Leave.



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