Obstetric and perinatal health outcomes related to schizophrenia: A national register-based follow-up study among Finnish women born between 1965 and 1980 and their offspring

Background:

This national register-based study assesses obstetric and perinatal health outcomes in women with schizophrenia and their offspring.

Methods:

Using the Care Register for Health Care, we identified Finnish women who were born in 1965- 1980 and diagnosed with schizophrenia. For each case, five age- and place-of-birth- matched controls were obtained from the Central Population Register of Finland. They were followed from the day when the disorder was diagnosed in specialized health-care (the index day) until 31.12.2013. Information related to births was obtained from the Medical Birth Register and the Register of Congenital Malformations. We focused on singleton pregnancies that led to a delivery after the index day. We restricted the analysis of deliveries in controls to those that occurred after the index day of the case. Maternal age, marital status, smoking status, sex of the newborn, and parity were used as covariates in adjusted models.

Results:

We identified 1162 singleton births among women with schizophrenia and 4683 among controls. Schizophrenic women had a 1.4-fold increased risk of induction of labor, delivery by cesarean section, and delivery by elective cesarean section. Regarding offspring, the risk of premature birth and the risk of low Apgar score at 1 min (<7) were 1.6-fold, of resuscitation 2.5-fold, and of neonatal monitoring 2.1-fold higher.

Conclusions:

Schizophrenia associates with some specific delivery methods, but delivery complications are rare and their prevalence does not differ from that observed among community women. Maternal schizophrenia associates with some negative perinatal health outcomes of the offspring.

Schizophrenia and pregnancy: a national register-based follow-up study among Finnish women born between 1965 and 1980

To assess psychosocial and somatic risk factors related to pregnancy, and pregnancy-related complications or disorders in women with schizophrenia compared to population controls. In this register-based cohort study, we identified all Finnish women who were born in 1965-1980 and diagnosed with schizophrenia in psychiatric care before 31 December 2013. For each case, five age- and place-of-birth matched controls were randomly selected. They were followed from the day when the disorder was diagnosed in specialized health care till the end of 2013. The mean follow-up time was 14.0 + 6.91 vs. 14.3 + 6.89 years. Altogether, 1162 singleton pregnancies were found among affected women and 4683 among controls. Affected women were significantly older and more often single; their body mass index before pregnancy was significantly higher, and they smoked significantly more often both in the beginning of pregnancy and after the first trimester than controls. They showed a significantly higher odds for pathologic oral glucose tolerance test (odds ratio (OR) 1.66, 95% confidence interval (95% CI) 1.27-2.17), initiation of insulin treatment (OR 1.84, 95% CI 1.15-2.93), fast fetal growth (OR 1.62, 95% CI 1.03-2.52), premature contractions (OR 2.42, 95% CI 1.31-4.49), hypertension (OR 1.81, 95% CI 1.01-3.27), and pregnancy-related hospitalizations (OR 1.97, 95% CI 1.66-2.33). Suspected damage to the fetus from alcohol/drugs was significantly more common among affected women than controls. Women with schizophrenia have higher prevalence of psychosocial and somatic risk factors related to pregnancy, as well as pregnancy-related complications and disorders than non-affected women.

Maternal schizophrenia and out-of-home placements of offspring: A national follow-up study among Finnish women born 1965-1980 and their children

Schizophrenia may affect a mother's ability to parent. We investigated out-of-home placements among children with a biological mother having schizophrenia, and their relation to maternal characteristics and adverse perinatal health outcomes of the offspring. For each Finnish woman born between 1 JAN 1965 - 31 DEC 1980 and diagnosed with schizophrenia before 31 DEC 2013 (n = 5214), five matched controls were randomly selected from the Finnish Central Population Register. Children born to these women were identified and followed till 31 DEC 2013. The Child Welfare Register, the Medical Birth Register and the Register of Congenital Malformations were used to gather information. Altogether 35.1% of children with an affected mother and 3.2% of control children were placed out of home during the follow-up. The incidence rate ratio (IRR) of out-of-home placement among children with an affected mother was 12.6 (95% confidence interval (CI) 10.80-13.46) when children with a non-affected mother served as a reference. Single motherhood (IRR 2.2, 95% Cl 1.88-2.60) and maternal smoking (IRR 1.9, 95% Cl 1.68-2.16), but not an adverse perinatal outcome of the offspring, increased the risk of out-of-home placement. To conclude, maternal schizophrenia is a strong risk factor for placement of children in out-of-home care.

Pregnancy, delivery and postpartum in women with schizophrenia or schizoaffective disorder in Finland: a national register-based comparative study

As part of anational Finnish study on reproductive health of women with severe mental disorders, we compared pregnancy- and delivery-, and postpartum-related outcomes between women with schizophrenia (n = 3444) and those with schizoaffective disorder (n = 985), focusing on their singleton pregnancies after illness onset (n = 708 and n = 242, respectively). For comparison, data also included 22,101 controls with 3668 pregnancies. The Finnish Medical Birth Register, the Register of Congenital Malformations and the Child Welfare Register were used. Despite known differences between the two disorders, we found no robust differences between these patient groups.

[Pregnancy and maternity of a schizophrenic patient]

Aspects to be taken into consideration in the total care of women of reproductive age and affected with schizophrenia include possible contraception, pharmacological therapy during pregnancy and need for support in parenthood. Compared with other pregnant women, those affected with schizophrenia are older, are more frequently smokers during pregnancy and more often neglect health monitoring during pregnancy. Schizophrenia predisposes for preterm delivery, miscarriage and lower Apgar score of the infant. In regard to parenthood, the effects of the illness itself or the prescribed medication on the interactive mother-child relationship may emerge as problematic issues.