Maternal hypothalamic-pituitary-adrenal axis response to foraging uncertainty: A model of individual vs. social allostasis and the "Superorganism Hypothesis"

Association between socioeconomic position of the household head, food insecurity and psychological health: an application of propensity score matching

BACKGROUND

Mental health outcomes can be influenced by various factors, one of which has recently gained attention, namely food security. Food security is paramount to maintaining not only physical, but also mental health. There is an increasing need to understand the interplay between food insecurity (FI) and mental health outcomes, especially among vulnerable populations. The objective of this study was to investigate the effect of FI on psychological health (anxiety and depression) as well as to examine the modifying effect of socioeconomic position on this relationship.

METHODS

A cross-sectional study was conducted in Maputo City, Mozambique, in 1,842 participants. Data were collected through structured interviews using a modified version of the US Department of Agriculture Household Food Security Module to measure FI, and the Hospital Anxiety and Depression Scale to measure anxiety and depression. A composite variable for psychological health was created. Propensity score matching and interaction effect analyses were employed to examine the effects of FI on psychological health and the moderating role of socioeconomic position.

RESULTS

Of the 1,174 participants randomly assigned to propensity score matching, 787 were exposed to FI while 387 were unexposed. The analysis revealed stark disparities in psychological health outcomes associated with FI. The risk of poor psychological health among those exposed to FI was 25.79%, which was significantly higher than the 0.26% in unexposed individuals. The risk difference was 25.54% points (95% CI: 22.44-28.63), with a risk ratio of 99.82. Our assessment of population attributable fractions indicated that nearly all the risk for poor psychological health in the exposed group could be ascribed to FI. The interaction effects analysis revealed that socioeconomic status modifies this relationship. Specifically, heads of food-insecure households with a lower socioeconomic position tended to report poor mental health compared to their food-secure counterparts with a higher position.

CONCLUSIONS

The findings underscore the profound impact of FI on the mental health of household heads in Maputo City, socioeconomic position being a significant modifier. Addressing household FI along with the socioeconomic position of household heads could be pivotal to mental health promotion, especially among vulnerable populations.

The joint effect of female sex and food insecurity on self-reported mood disorder among Canadian adults: the Canadian community health survey

BACKGROUND

Food insecurity is prevalent in Canada and may influence mental health, particularly among females. The present study examined the joint effect of female sex and food insecurity on mood disorders.

METHODS

The study used data from 104,420 adults aged 18 years or older who participated in the 2017/2018 Canadian Community Health Survey (CCHS). Log-binomial models explored the independent and joint associations of female sex and food insecurity with the prevalence of self-reported mood disorder. Prevalence ratios (PRs) and 95% confidence intervals (CIs) were estimated. Relative excess risk due to interaction (RERI), attributable proportion (AP), and synergy index (S) were used to assess the additive interaction of female sex and food insecurity. The complex survey design was taken into consideration.

RESULTS

The prevalence of mood disorder was 6.7% for males and 11.4% for females, with an adjusted prevalence ratio being 1.59 (95% CI 1.51, 1.68) for females versus males. Mood disorder was associated with moderate food insecurity (PR 2.06, 95% CI 1.91, 2.23) and severe food insecurity (PR 3.29, 95% CI 3.06, 3.55). There was a significant additive interaction between female sex and food insecurity in association with the prevalence of mood disorders among females aged 18 to 39 years (RERI 1.19, 95% CI 0.27,2.08).

CONCLUSION

Food insecurity was associated with an increased prevalence of mood disorders, especially in younger females. Interventions that facilitate access to food while being cognizant of the socioeconomic vulnerabilities of females may have substantial benefits for the prevention and management of mood disorders.

Food insufficiency, adverse childhood experiences and mental health: results of the Singapore Mental Health Study 2016

OBJECTIVE

This study aimed to investigate the prevalence and correlates of food insufficiency and its association with mental disorders and adverse childhood experiences (ACE) in Singapore.

DESIGN

This analysis utilised data from the Singapore Mental Health Study (SMHS 2016).

SETTING

SMHS 2016 was a population-based, psychiatric epidemiological study conducted among Singapore residents.

PARTICIPANTS

Interviews were conducted with 6126 respondents. Respondents were included if they were aged 18 years and above, Singapore citizens or permanent residents and able to speak in English, Chinese or Malay.

RESULTS

The prevalence of food insufficiency was 2·0 % (95 % CI (1·6, 2·5)) among adult Singapore residents. Relative to respondents who did not endorse any ACE, those with ACE (OR: 2·9, 95 % CI (1·2, 6·6)) had higher odds of food insufficiency. In addition, there were significant associations between lifetime mental disorders and food insufficiency. Bipolar disorder (OR: 2·7, 95 % CI (1·2, 6·0)), generalised anxiety disorder (OR: 4·5, 95 % CI (1·5, 13·5)) and suicidal behaviour (OR: 2·37, 95 % CI (1·04, 5·41)) were shown to be significantly associated with higher odds of food insufficiency.

CONCLUSIONS

The prevalence of food insufficiency is low in Singapore. However, this study identifies a vulnerable group of food-insufficient adults that is significantly associated with mental disorders, including suicidality. Government-funded food assistance programmes and multi-agency efforts to deal with the social determinants of food insufficiency, such as income sufficiency and early detection and intervention of mental distress, are key to ensuring a sustainable and equitable food system.

Food insecurity is associated with the sleep quality and quantity in adults: a systematic review and meta-analysis

OBJECTIVE

We evaluated associations between food insecurity (FI) and the quality and quantity of sleep in adults (≥18 years).

DESIGN

The current study represented a systematic review and meta-analysis of observational studies.

SETTING

Databases of PubMed, Scopus, Embase and Web of Science were searched from inception until 6 June 2022. Meta-analyses were conducted using random-effects models, and effect sizes were reported as OR and 95 % CI.

PARTICIPANTS

Data from ten eligible observational studies, including 83 764 participants, were included.

RESULTS

FI was associated with an increased risk of poor sleep quality (OR = 1·45; 95 % CI (1·24, 1·70), I2 = 95, P < 0·001, n 7). Besides, subgroup analysis showed increased risk of poor sleep quality corresponding to the severity of FI across mild (OR = 1·31; 95 % CI (1·16, 1·48), I2 = 0 %, P < 0·001, n 5), moderate (OR = 1·49; 95 % CI (1·32, 1·68), I2 = 0 %, P < 0·001, n 5) and severe (OR = 1·89; 95 % CI (1·63, 2·20), I2 = 0 %, P < 0·001, n 5) levels. Similarly, subgroup analysis by sleep problems showed that FI was associated with an increased the risk of trouble falling asleep (OR = 1·39; 95 % CI (1·05, 1·83), I2 = 91 %, P = 0·002, n 3) and trouble staying asleep (OR = 1·91; 95 % CI (1·37, 2·67), I2 = 89 %, P < 0·001, n 3). Moreover, FI was associated with the odds of shorter (OR = 1·14; 95 % CI (1·07, 1·21), I2 = 0 %, P < 0·001, n 4) and longer sleep duration (OR = 1·14; 95 % CI (1·03, 1·26), I2 = 0 %, P = 0·010, n 4).

CONCLUSIONS

Collective evidence supports that FI is associated with poor sleep quality and quantity in adults. Preventative and management strategies that address FI may provide health benefits beyond improving nutritional status per se.

Trajectory of Food Insecurity and Its Association with Longitudinal Mental Health and Sleep Outcomes in Adolescents from Economically Disadvantaged Families

BACKGROUND

Adolescence is a critical transition period in the course of human development. Although food insecurity (FI) has been shown to be associated with adverse mental health and sleep outcomes in US adolescents, there is a paucity of research examining the relationships between FI, mental health, and sleep outcomes in Taiwanese adolescents. Furthermore, it is unknown how the change of FI over time (i.e., the trajectory of FI) is related to health outcomes.

METHODS

The data come from the Taiwan Database of Children and Youth in Poverty, which is a national longitudinal project measuring FI in five survey waves (2009-2017). We employed group-based trajectory modeling to classify various FI trends over the five waves using STATA. Furthermore, a generalized estimating equation analysis was conducted with FI trajectories as the independent variable to see how FI trajectory is related to mental health and sleep outcomes.

RESULTS

In total, 1921 participants aged 12-18 years in the first wave were deemed valid for the analysis. We classified the participants into four FI trajectory groups: persistently low FI (24.8%), persistently moderate FI (64.7%), declining from high to low FI (4.1%), and food-secure groups (6.4%). As compared to food-secure adolescents, the persistently moderate FI group was more likely to have mental problems (β = 0.30, [95% confidence interval 0.21-0.38]), while the other FI groups were only marginally associated with mental health problems. Moreover, adolescents in the persistently low FI group (β = 0.13, [0.02-0.23]) and persistently moderate FI group (β = 0.39, [0.29-0.48]) were found to have more sleep problems than those in the food-secure group.

CONCLUSIONS

Our study describes the FI profile of adolescents from economically disadvantaged families and the difficulties they might encounter. With this information, healthcare providers can aid adolescents in the early stages of mental health problems and provide guidance when appropriate.

Food Insecurity Is Associated With Poorer Mental Health and Sleep Outcomes in Young Adults

PURPOSE

The aim of the study was to determine the association between food insecurity, mental health, and sleep outcomes among young adults. Young adulthood represents an important developmental period when educational and economic transitions may increase the risk for food insecurity; however, little is known about associations between food insecurity and health outcomes in this period.

METHODS

Cross-sectional nationally representative data of U.S. young adults aged 24-32 years from Wave IV (2008) of the National Longitudinal Study of Adolescent to Adult Health were analyzed in 2018. Multiple logistic regression analysis was conducted with food insecurity as the independent variable and self-reported mental health (depression, anxiety, and suicidality) and sleep (trouble falling and staying asleep) outcomes as the dependent variables.

RESULTS

Of the 14,786 young adults in the sample, 11% were food insecure. Food-insecure young adults had greater odds of mental health problems including a depression diagnosis (1.67, 95% confidence interval [CI] 1.39-2.01), anxiety or panic disorder diagnosis (1.47, 95% CI 1.16-1.87), and suicidal ideation in the past 12 months (2.76, 95% CI 2.14-3.55). Food insecurity was also associated with poorer sleep outcomes including trouble falling (adjusted odds ratio 1.78, 95% CI 1.52-2.08) and staying (adjusted odds ratio 1.67, 95% CI 1.42-1.97) asleep.

CONCLUSIONS

Food insecurity is associated with poorer mental and sleep health in young adulthood. Health care providers should screen for food insecurity in young adults and provide referrals when appropriate. Future research should test interventions to simultaneously combat food insecurity and mental health problems in young adulthood.

Developmental delay in communication among toddlers and its relationship to caregiving behavior among violence-exposed, posttraumatically stressed mothers

OBJECTIVES

This study aimed to understand if maternal interpersonal violence-related posttraumatic stress disorder (IPV-PTSD) is associated with delayed language development among very young children ("toddlers").

METHODS

Data were collected from 61 mothers and toddlers (ages 12-42 months, mean age = 25.6 months SD = 8.70). Child expressive and receptive language development was assessed by the Ages and Stages Questionnaire (ASQ) communication subscale (ASQCS) that measures language acquisition. Observed maternal caregiving behavior was coded from videos of 10-min free-play interactions via the CARE-Index. Correlations, Mann-Whitney tests, and multiple linear regression were performed.

RESULTS

There was no significant association between maternal IPV-PTSD severity and the ASQCS. Maternal IPV-PTSD severity was associated with continuous maternal behavior variables (i.e. sensitive and controlling behavior on the CARE-Index) across the entire sample and regardless of child gender. Maternal sensitivity was positively and significantly associated with the ASQCS. Controlling behavior was negatively and significantly associated with the ASQCS.

CONCLUSIONS

Results are consistent with the literature that while maternal IPV-PTSD severity is not associated with child language delays, the quality of maternal interactive behavior is associated both with child language development and with maternal IPV-PTSD severity. Further study is needed to understand if the level of child language development contributes to intergenerational risk or resilience for relational violence and/or victimization.