BackgroundAlthough maternal perinatal mental illnesses commonly present to and are primarily treated in general practice, few population-based estimates of this burden exist, and the most affected socioeconomic groups of pregnant women remain unclear.
AimTo provide estimates of maternal depression, anxiety and serious mental illness (SMI) in UK general practice and quantify impacts of socioeconomic deprivation.
Design and settingCross-sectional analysis of prospectively recorded general practice records from a UK-wide database.
MethodA pregnancy ending in live birth was randomly selected for every woman of childbearing age, [1994][1995][1996][1997][1998][1999][2000][2001][2002][2003][2004][2005][2006][2007][2008][2009]. Prevalence and diagnostic overlap of mental illnesses were calculated using a combination of medical diagnoses and psychotropic drug prescriptions. Socioeconomic deprivation was assessed using multivariate logistic regression, adjusting for calendar period and pregnancy history.
ResultsAmong 116 457 women, 5.1% presented with antenatal depression and 13.3% with postnatal depression. Equivalent figures for anxiety were 2.6% and 3.7% and for SMI 1/1000 and 2/1000 women. Socioeconomic deprivation increased the risk of all mental illnesses, although this was more marked in older women. Those age 35-45 years in the most deprived group had 2.63 times the odds of antenatal depression (95% confidence interval [CI] = 2.22 to 3.13) compared with the least deprived; in women aged 15-25 years the increased odds associated with deprivation was more modest (odds ratio = 1.35, 95% CI = 1.07 to 1.70). Similar patterns were found for anxiety and SMI.
ConclusionStrong socioeconomic inequalities in perinatal mental illness persist with increasing maternal age. Targeting detection and effective interventions to high-risk women may reduce inequity and avoid substantial psychiatric morbidity.Keywords general practice; mental disorder; mothers; socioeconomic status.e671 British Journal of General Practice, October 2012 without direct diagnostic indication for the prescription, likely reflecting the diagnostic pathway (for example, prescriptions of psychotropic drugs as part of diagnostic procedure) and routine clinical practice (for example, a doctor with knowledge of their patient's clinical history will not need to record a new diagnosis of depression with each prescription for effective clinical care). Furthermore, individuals may receive more than one type of diagnosis, concurrently or at different times during their life. Therefore a comprehensive approach to define and distinguish between different types of mental illness in women's records was adopted by using a combination of medical diagnoses and psychotropic drug prescriptions. The prevalence of clinicallydiagnosed perinatal mental illness with or without treatment during the 9 months before pregnancy, during pregnancy (antenatal period) and during the 9 months after pregnancy (postnatal period) was estimated. Periods of 9-months were used as they we...