Association among length of residence, physical activity, and obesity in the US immigrants: A regression-based mediation analysis

Exploring the Impact of Length of Residence and Food Insecurity on Weight Status Among Canadian Immigrants

PURPOSE

While the individual impacts of long-term residence and food insecurity on overweight/obesity are well-documented, their combined effect on immigrants' weight status is less understood. This study examines the interaction between length of residence and food insecurity in predicting overweight/obesity among immigrants and investigates whether this relationship is gender-specific.

DESIGN

A national cross-sectional survey.

SETTING

The 2017-2018 Canadian Community Health Survey.

SUBJECTS

Immigrants aged 18 and older (N = 13 680).

MEASURES

All focal variables were self-reported.

ANALYSIS

Logistic regression models were employed.

RESULTS

Long-term immigrants were more likely to report overweight/obesity than their short-term counterparts (OR = 1.39; P < .001). Moreover, immigrants from food-insecure households were at a higher risk of reporting overweight/obesity (OR = 1.27; P < .05) compared to those from food-secure households. The analysis further revealed that food insecurity exacerbated the detrimental association between length of residence and overweight/obesity in men (OR = 2.63; P < .01) but not in women (OR = .66; P > .05).

CONCLUSION

The findings suggest that long-term immigrant men may be especially susceptible to the compounded chronic stressors of extended residence and food insecurity. Health professionals and policymakers should advocate for psychosocial resources to help mitigate these adverse effects and support the well-being of immigrant populations.

Toolkit article: Approaches to measuring social inequities in health in human biology research

Across populations, human morbidity and mortality risks generally follow clear gradients, with socially-disadvantaged individuals and groups tending to have higher morbidity and mortality at all life stages relative to those more socially advantaged. Anthropologists specialize in understanding the proximate and ultimate factors that shape variation in human biological functioning and health and are therefore well-situated to explore the relationships between social position and health in diverse ecological and cultural contexts. While human biologists have developed sophisticated methods for assessing health using minimally-invasive methods, at a disciplinary level, we have room for conceptual and methodological improvement in how we frame, measure, and analyze the social inequities that might shape health inequities. This toolkit paper elaborates on some steps human biologists should take to enhance the quality of our research on health inequities. Specifically, we address: (1) how to frame unequal health outcomes (i.e., inequalities vs. disparities vs. inequities) and the importance of identifying our conceptual models of how these inequities emerge; (2) how to measure various axes of social inequities across diverse cultural contexts, and (3) approaches to community collaboration and dissemination. We end by discussing (4) future directions in human biology research of health inequities, including understanding the ultimate causes of sensitivity to social inequities and transitioning from research to action.

Obesity in Latinx and White U.S. military veterans: prevalence, physical health, and functioning

OBJECTIVE

While Latinx Americans in the general population are more likely to have obesity than non-Hispanic Whites, limited research has examined ethnic differences in obesity and its correlates among military veterans. To address this gap, we examined the prevalence, physical health and functional correlates of obesity in a population-based sample of Latinx and White U.S. military veterans.

METHODS

Data were analyzed from the 2019-2020 National Health and Resilience in Veterans Study, which surveyed a nationally representative sample of veterans. Bivariate and multivariate analyses were conducted to evaluate the relation between obesity, and health and functioning measures in Latinx and White veterans.

RESULTS

The prevalence of obesity was significantly higher among Latinx veterans (weighted 43.6% vs. 35.5%; odds ratio (OR) = 1.4, 95% confidence interval (CI) = 1.10-1.81). While obesity was associated with a greater number of medical conditions, reduced functioning, higher somatic symptoms, and insomnia severity in both Latinx and White veterans, these differences were more pronounced in Latinx relative to White veterans, with higher rates of arthritis, liver disease, diabetes, high blood pressure and cholesterol, heart attack, stroke, migraine, and physical disability, and greater physical, mental, and psychosocial dysfunction.

CONCLUSION

Obesity is more prevalent in Latinx than in White U.S. veterans, and the associated elevated health and functional impairments are more pronounced in Latinx veterans. Characterization of co-occurring physical and functioning problems among Latinx and White veterans with obesity may help inform ethnically-sensitive obesity prevention and treatment efforts in this population.