The Grampian Renal Biochemistry Dataset (GRBD) is an
existing extract of NHS Grampian’s Biochemistry Dataset
(1999–2009). All biochemistry services (in-patient, commu-
nity, private) in the Grampian region were provided by two
linked National External Quality Assessment Service moni-
tored laboratories. Data were extracted from the GRBD for
women in the AMND cohort who:
had renal function tested at least one year after the date
of delivery
were still living in the Grampian region after 1st July
1999
(2) The Scottish Morbidity Record for non-obstetric and non-
psychiatric general acute inpatient and day case discharges
from NHS hospitals in Scotland (SMR01) was introduced in
1961. This was used to identify any hospital admissions
from kidney diseases coded according to International Clas-
sification of Diseases (10th revision) codes.
(3) The Scottish Renal Registry (SRR) is a national registry of
patients on long term renal replacement therapy. All NHS
renal units contribute fully to this database. Data from Scot-
tish renal units were available from 1960 when regular and
routine renal replacement therapy (RRT) for end stage renal
disease (ESRD) started in Scotland.(4) National Records of Scotland (NRS) Data on Deaths (formerly
the General Register Office for Scotland (GROS)) – Data col-
lection in this register dates back to 1855. This register was
used to identify any deaths occurring in the cohoort