Socioeconomic and sex inequalities in parent-reported adolescent mental ill-health: Time trends in four British birth cohorts
BackgroundStudies using symptom-based screeners have suggested that mental health problems have increased in adolescents in recent decades, however, few studies have explicitly tested the equivalence of their instruments, which is critical for inferring changes in prevalence. In addition, few studies have explored whether changes in socioeconomic position (SEP) and sex inequalities across generations have impacted trends in adolescent mental health. MethodsUsing structural equation modelling, we explore sex differences in harmonised parent-reports of emotional and behavioural problems, using data from four UK birth cohorts: the 1958 National Child Development Study (NCDS’58; N= 11,398), the 1970 British Cohort Study (BCS’70; N= 8,161), the 1991-92 Avon Longitudinal Study of Parents and Children (ALSPAC’91; N= 5,304), and the 2001 Millennium Cohort Study (MCS’01; N= 10,384). We also delineate associations between four harmonised indicators of childhood SEP and adolescent mental health, and test whether changes in SEP account for increases in mental ill-health over time. Results We found an increase in the latent means of parent-reported emotional and behavioural problems across time in both males and females in more recent cohorts, with the exception of ALSPAC’91. Sex-inequalities did not change over time, with females having consistently higher emotional problems. The associations between the four indicators of SEP and emotional problems were strongest in the MCS’01, with housing tenure having the strongest association. All four SEP indicators were associated with behavioural problems in all of the cohorts, with housing tenure again more strongly associated with problems in the MCS’01. Inconsistent mediation (i.e. regression suppression) suggested that the increases in mental health problems occurred despite broadly improving average socio-economic conditions. ConclusionsOur findings suggest that parent-reported adolescent mental health problems have risen in recent generations and that this trend is not due solely to reporting styles. A failure to address widening inequalities may result in further increases in mental ill-health amongst disadvantaged young people.