Table 3 Risk factors of avoidable brain injury associated to HIE: potentially relevant data items that were identified in one or more of the data sources.
From: Improving UK data on avoidable perinatal brain injury: review of data dictionaries and consultation
Maternal characteristics | MSDS version 2.0 | HES APC | NNRD | NMPA 2015–2017 | NMPA 2017–2019 |
---|---|---|---|---|---|
Ethnic group | Y | Y | Y | Y | Y |
Parity | Y | Y | Y | Y | Y |
Maternal age | Y | Y | Y | Y | Y |
Tobacco smoking | Y | N | Y | Y | Y |
Indication of social status (e.g. Carstairs, single unsupported mother, Index of Multiple Deprivation) | Y | Y | Y | Y | Y |
Antenatal risk factors | |||||
Height, weight and BMI at first antenatal appointment (booking) | Y | N | N | Y | Y |
Previous caesarean birth | Y | Y | N | Y | Y |
Previous perinatal loss (stillbirth/neonatal death) | Y | Y | N | Y | Y |
Previous SGA baby <10th centile | N | Y | N | Y | Y |
Gestation at booking | Y | Y | N | Y | Y |
Maternal diabetes (gestational and pre-pregnancy) | Y | Ya | Y | Y | Y |
Cardiac disease | Y | Ya | Y | Y | Y |
Epilepsy | Y | Ya | Y | Y | Y |
Group B Streptococcus (GBS) carrier | Y | N | Y | Y | Y |
Suspected fetal growth restriction | N | N | Y | Y | N |
Pre-eclampsia (blood pressure ≥140/90 mmHg, proteinuria ≥2+, pre-existing or pregnancy induced hypertension) | Y | Ya | Y | Y | Y |
Antepartum bleeding | Y | Ya | Y | Ya | Y |
Intrapartum risk factors | |||||
Gestational age (weeks + days) | Y | Y | Y | Y | Y |
Mode of birth: spontaneous, instrumental, vaginal breech, planned caesarean, emergency caesarean | Y | Y | Y | Y | Y |
Labour onset – spontaneous, no labour, or induced (prostaglandins or balloon or artificial rupture of membranes or oxytocin) | Y | Y | Y | Y | Y |
Presentation at onset of labour or birth (e.g. cephalic, breech) | Y | N | Y | Y | Y |
Chorioamnionitis | N | Ya | Y | Ya | Ya |
Augmentation with oxytocin | Y | N | Y | Y | Y |
Duration of rupture of membranes | Y | N | Y | Y | Y |
Duration of first stage of labour | Y | N | N | Y | Y |
Duration of second stage of labour | Y | N | N | Y | Y |
Analgesia, including anaesthesia in labour | Y | Y | Y | Y | Y |
Antibiotics given in labour | N | N | Y | Y | Y |
Maternal pyrexia | N | Nb | Y | Y | Nb |
Meconium staining of the amniotic fluid | N | N | Y | Y | N |
Intrapartum bleeding | Y | Ya | N | Ya | Y |