Obstetric data

Description
Obstetric data collected for selected cases during perinatal-period in delivery hospitals and antenatal clinics and the supplement of the data collection for all cases completed in the year 2002.

Selected cases
For all singleton-births cases  were selected for this study in the following way:

  • All mothers, if baby was stillborn, weighted <2500 grams,  was born before 38th or after 42nd gestational week
  • A 1000 case random sample of mothers with singleton birth not belonging to the group 1

Obstetric data was later collected  for all mothers whose child was born as twin, had perinatal brain damage or  up to the age of 14 diagnosed  as mentally retarded, celebral palsy, or epilepsy  or up to the age of 28 diagnosed as schizophrenia.

The supplement of the data collection for the rest of the cases completed in the year 2002.

Coverage
Target population: N = 12 231 (100%)
Data collected N = 11 924 (97,5%)

Target population

Number of cases

Number of cases in the data

Coverage per cent

Mothers of babies weighted <2500 grams 

498

487

97.8

Mothers of babies born before 38th week 

1048

1015

96.9

Mothers of babies born after 42nd week

648

622

96.0

Mothers of  babies died at perinatal period

282

278

98.6

Random sample of other mothers

1000

984

98.4

Twins

326

320

98.2

Child had a perinatal brain damage

231

211

82.8

Child diagnosed as  MR,CP or epilepsy -child

495

410

82.8

Child had a schizophrenic diagnose

76

60

79.0

Data collection
Prenatal information concerning mother's health condition during pregnancy was obtained from the antenatal cards requested from the antenatal clinics. Delivery reports was requested from the maternity hospitals. If the requsted delivery report was not received, the reseacher checked delivery data in the delivery hospital.

Questionnaire form (in finnish)

The variable list
The varible list (obstetric data, completed)

Main article
Hartikainen A.-L.: A study of parturient mothers in Northern Finland. Acta Univ. Oul. Series D, Medica No. 4, 1973; 1-89 (thesis).

Last updated: 9.7.2020