National Social Life, Health, and Aging Project (NSHAP)

Waite, Linda J.; Laumann, Edward O.; Levinson, Wendy; Lindau, Stacy Tessler; McClintock, Martha K.; O’Muircheartaigh, Colm; Schumm, L. Philip

doi:10.3886/icpsr20541.v5

Cited by 44 publications

(55 citation statements)

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“…The National Social Life, Health, and Aging Project (NSHAP) is a prospective, population based probability sample of 4,121 older (57+ year), community-dwelling Americans selected from eligible households identified in the Health and Retirement Study (HRS) in 2004 (Waite et al, 2014; Waite LJ, 2014). The survey over-sampled African-Americans, Latinos, men and the oldest old (75–84 years).…”

Section: Methodsmentioning

confidence: 99%

Associations between long-term exposure to air pollution, glycosylated hemoglobin and diabetes

Honda

Pun

Manjourides

et al. 2017

International Journal of Hygiene and Environmental Health

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BACKGROUND Air pollution exposures have been shown to adversely impact health through a number of biological pathways associated with glucose metabolism. However, few studies have evaluated the associations between air pollution and glycosylated hemoglobin (HbA1c) levels. Further, no studies have evaluated these associations in US populations or investigated whether associations differ in diabetic as compared to non-diabetic populations. To address this knowledge gap, we investigated the associations between airborne fine particulate matter (PM2.5) and nitrogen dioxide (NO2) and HbA1c levels in both diabetic and non-diabetic older Americans. We also examined the impact of PM2.5 and NO2 on prevalent diabetes mellitus (DM) in this cohort. METHODS We used multilevel logistic and linear regression models to evaluate the association between long-term average air pollutant levels and prevalence of DM and HbA1c levels, respectively, among 4,121 older (57+ years) Americans enrolled in the National Social Life, Health, and Aging Project between 2005 and 2011. All models adjusted for age, sex, body mass index, smoking status, race, household income, education level, neighborhood socioeconomic status, geographic region, urbanicity and diabetic medication use. We estimated participant-specific exposures to PM2.5 on a six-kilometer grid covering the conterminous U.S. using spatio-temporal models, and to NO2 using nearest measurements from the Environmental Protection Agency’s Air Quality System. HbA1c levels were measured for participants in each of two data collection waves from dried blood spots and log-transformed prior to analysis. Participants were considered diabetic if they had HbA1c values ≥ 6.5% or reported taking diabetic medication. RESULTS The prevalence of diabetes at study entry was 22.2% (n=916) and the mean HbA1c was 6.0 ± 1.1%. Mean one-year moving average PM2.5 and NO2 exposures were 10.4 ± 3.0 μg/m3 and 13.1 ± 7.0 ppb, respectively. An inter-quartile range (IQR, 3.9 μg/m3) increase in one-year moving average PM2.5 was positively associated with increased diabetes prevalence (prevalence odds ratio, POR 1.35, 95% CI: 1.19, 1.53). Similarly, an IQR (8.6 ppb) increase in NO2 was also significantly associated with diabetes prevalence (POR 1.27, 95% CI: 1.10, 1.48). PM2.5 (1.8% ± 0.6%, p<0.01) and NO2 (2.0% ± 0.7%, p<0.01) exposures were associated with higher HbA1c levels in diabetic participants, while only NO2 was significantly associated with HbA1c in non-diabetic participants (0.8% ± 0.2%, p<0.01). Significant dose response relationships were identified for both pollutants in diabetic participants and for NO2 in non-diabetic participants. CONCLUSIONS/INTERPRETATIONS In a cohort of older men and women in the United States, PM2.5 and NO2 exposures were significantly associated with prevalence of DM and increased HbA1c levels among both non-diabetic and diabetic participants. These associations suggest that air pollution could be a key risk factor for abnormal glucose metabolism and diabetes in the elde...

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Section: Methodsmentioning

confidence: 99%

Associations between long-term exposure to air pollution, glycosylated hemoglobin and diabetes

Honda

Pun

Manjourides

et al. 2017

International Journal of Hygiene and Environmental Health

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“…To test the hypotheses, we use data from the first wave of the National Social Life, Health, and Aging Project (NSHAP) (Waite et al 2008).…”

Section: Methodsmentioning

confidence: 99%

Intimacy and Belonging

Ganong

Larson

2011

Society and Mental Health

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There is a paucity of systematic analysis of the relation between sexual activity and mental health. To address this gap, we ask whether sexual activity associates with lower levels of depression among older adults. We hypothesize that sexual activity-especially if it typically incorporates other forms of physical affection-may be a socially meaningful activity and may create intimacy that provides social uplift. We test this hypothesis against alternative hypotheses that relationship characteristics or physical health could account for any association between sex and depression. In addition, we consider whether there are gender dynamics that affect the association between sexual activity and depression. We analyze data from the National Social Life, Health, and Aging Project (NSHAP), a nationally representative survey of adults aged 57 to 85. Given findings of significant gendered aspects of depression, sexual activity, social support, and aging, we estimate separate models for women and men. Although we find differences between models for men and women for many control variables that correspond to gendered differences in depression, sexual activity that typically incorporates other forms of physical intimacy has a robust association with lower depression for both women and men.

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“…NSHAP was designed to assess social life and health during aging and offer insight into the function of the home-dwelling older adult U.S. population. The NSHAP wave 2 data are publicly available through the National Archive of Computerized Data on Aging (Waite et al 2014; NACDA, https://www.icpsr.umich.edu/icpsrweb/NACDA/). …”

Section: Methodsmentioning

confidence: 99%

Field Survey Measures of Olfaction

et al. 2014

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Population-based field research on human olfaction has been limited by a lack of feasible assessment tools. Previous olfactory survey research has measured only odor identification, with no research being done on odor detection (i.e., a person's sensitivity to detect a particular odor). Laboratory studies suggest that deficits in both aspects of olfactory function may be related to physical health, mental health and cognition, social function, including overall quality of life, and even mortality. However, field studies are needed to validate and extend these findings in large representative samples. Here we describe the olfactory function field exam, an instrument that can be deployed in field environments by lay interviewers to evaluate both odor identification and odor detection rapidly, practically, and accurately. Use of this new survey tool in future field-based population health studies will elucidate the impact of olfactory function on a myriad of health and social conditions.

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National Social Life, Health, and Aging Project (NSHAP)

Cited by 44 publications

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Associations between long-term exposure to air pollution, glycosylated hemoglobin and diabetes

Associations between long-term exposure to air pollution, glycosylated hemoglobin and diabetes

Intimacy and Belonging

Field Survey Measures of Olfaction

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