Birth order and post-traumatic stress disorder

Potential Sociodemographic Predictors of Childhood Anxiety Disorders: A Cross-Sectional Study

Background:

Previous studies have shown that the prevalence of anxiety among primary school students in rural areas is relatively high. Also, this stage is a critical developmental stage of academic life. Childhood anxiety disorders lead to significant disruption and interference with other aspects of life, including behavioral, emotional, cognitive, and academic achievement.

Aims:

This study aimed to find the frequency of 6 subtypes of anxiety disorders and to determine the potential sociodemographic factors of anxiety disorders among primary school students in a rural area of Malaysia.

Methods:

This was a cross-sectional study in which 411 students answered the Spence Children’s Anxiety Scale-Child version (SCAS-C). Descriptive analyses elucidated at-risk students, and multivariate analysis of variance and multiple linear regression presented potential predictors of anxiety disorders.

Results:

The most common abnormal level was for social phobia (SP) (n = 109/18.6%), and the least common were panic/agoraphobia (n = 85/14.1%) and physical injury fears (PIF) (n = 82/13.6%). Multivariate analysis of variance revealed that age ( P < .05), gender ( P < .05), father’s employment ( P < .05), and mother’s educational level (EL) P < .05) were predictors of overall anxiety. A Tukey post-hoc test revealed that older children are more likely to suffer from overall anxiety, separation anxiety (SA), SP, and obsessive-compulsive problems. Children of low-income families were less likely to suffer from SA than those of middle-income families. Children of stay-at-home mothers were less likely to suffer from overall anxiety, SA, and SP than mothers who worked more than 8 h per day. Multiple linear regression could predict 6 models of anxiety based on sociodemographic factors.

Conclusion:

According to our findings in this study, promoting mental health by providing preventive strategies and screening programs is more recommended for students with sociodemographic risk factors for anxiety disorders.

Birth order and prosociality in the early adolescent brain

Birth order is a crucial environmental factor for child development. For example, later-born children are relatively unlikely to feel secure due to sibling competition or diluted parental resources. The positive effect of being earlier-born on cognitive intelligence is well-established. However, whether birth order is linked to social behavior remains controversial, and the neural correlates of birth order effects in adolescence when social cognition develops remain unknown. Here, we explored the birth order effect on prosociality using a large-scale population-based adolescent cohort. Next, since the amygdala is a key region for sociality and environmental stress, we examined amygdala substrates of the association between birth order and prosociality using a subset neuroimaging cohort. We found enhanced prosociality in later-born adolescents (N = 3160), and observed the mediating role of larger amygdala volume (N = 208) and amygdala-prefrontal functional connectivity with sex-selective effects (N = 183). We found that birth order, a non-genetic environmental factor, affects adolescent social development via different neural substrates. Our findings may indicate the later-born people’s adaptive survival strategy in stressful environments.

Post-traumatic stress disorder among rural widows in Nsukka: risk factors and wellbeing domains

Losing a spouse to death is recognized as the most adverse life event that may increase the risk of depression, post-traumatic stress disorder, and other psychopathology with studies demonstrating that widows experienced more post-traumatic stress disorder symptoms than their non-widowed counterparts. Although the adverse effect of post-traumatic stress disorder may be stronger for widows in rural areas, the existing literature has shown the need for greater research on post-traumatic stress disorder experiences among vulnerable Igbo rural widows in Nsukka, South Eastern Nigeria. Against this backdrop, this study examined factors that predict post-traumatic stress disorder and the effect of post-traumatic stress disorder on the wellbeing domains of Igbo rural widows. Among the 177 participants, partner intimacy (β = .300, p < .001), cause of husband’s death (sudden vs. anticipated) (β = .183, p < .01), perceived social support (β = –.300, p < .001), number of surviving children at the time of husband’s death (β = .210, p < .01), and age of last child as at the time of husband’s death (β = .355, p < .01) all significantly predicted post-traumatic stress disorder. Domains of wellbeing most negatively affected by post-traumatic stress disorder included general life satisfaction (66.10%), family relationship (62.71%), and overall functioning (61.02%). The findings suggest that post-traumatic stress disorder among Igbo rural widows is a serious health concern that requires mental health professionals identifying high-risk rural widows early for intervention and developing programs aimed at educating and training rural community members on post-traumatic stress disorder and where to seek help on onset.

Association of Birth Order With Mental Health Problems, Self-Esteem, Resilience, and Happiness Among Children: Results From A-CHILD Study

Objective: This study aimed to investigate the association of birth order with mental health problems, self-esteem, resilience, and happiness among children aged 9-10 years. Methods: This was a cross-sectional study using data from the Adachi Child Health Impact of Living Difficulty (A-CHILD) study, which was a population-based study of children in fourth grade in public schools in Adachi City, Tokyo, Japan in 2018 (N = 3,744). Parent-rated Strengths and Difficulties Questionnaire (SDQ) and self-rated resilience, happiness, and self-esteem score were used to assess child mental health. Multiple regression analysis for continuous outcomes and logistic regression for dichotomous outcomes were used to examine the association of birth order with mental health problems, resilience, happiness, and self-esteem. The analysis was controlled for child sex, mother's age, mother's education, caregiver's depressive symptoms, household income, and living with grandparents. Results: Last-borns showed the lowest total difficulties score in the SDQ, while only children showed the highest (p < 0.001). The highest prosocial behaviors score was found among last-borns (p < 0.001). Resilience score was also highest among last-borns, followed by first-borns, middle-borns, and only children. The lowest happiness score was found among middle-borns. Self-esteem score did not differ by sibling types. These associations were similar in the adjusted model and dichotomized outcomes model. Conclusions: Differential impacts of birth order on child mental health, for both positive and negative sides, were found. Further research is warranted to elucidate the mechanism of the association between birth order and the development of behavior problems and the positive aspects such as resilience, happiness, and self-esteem among children.