National Social Life, Health, and Aging Project (NSHAP): Wave 2 and Partner Data Collection, [United States], 2010-2011 (ICPSR 34921)
Version Date: Jun 19, 2019 View help for published
Principal Investigator(s): View help for Principal Investigator(s)
Linda J. Waite, University of Chicago. Department of Sociology; Kathleen A. Cagney, University of Chicago. Department of Sociology, and Department of Health Studies; William Dale, University of Chicago. Department of Medicine. Section of Geriatrics and Palliative Medicine; Elbert Huang, University of Chicago. Department of Medicine; Edward O. Laumann, University of Chicago. Department of Sociology; Martha K. McClintock, University of Chicago. Department of Psychology, and Department of Comparative Human Development; Colm A. O'Muircheartaigh, Irving B. Harris Graduate School of Public Policy Studies; L. Phillip Schumm, University of Chicago. Department of Health Studies; Benjamin Cornwell, Cornell University. Department of Sociology
Version V4 (see more versions)
Alternate Title View help for Alternate Title
Summary View help for Summary
The National Social Life, Health and Aging Project (NSHAP) is the first population-based study of health and social factors on a national scale, aiming to understand the well-being of older, community-dwelling Americans by examining the interactions among physical health, illness, medication use, cognitive function, emotional health, sensory function, health behaviors, and social connectedness. It is designed to provide health providers, policy makers, and individuals with useful information and insights into these factors, particularly on social and intimate relationships.
The National Opinion Research Center (NORC), along with Principal Investigators at the University of Chicago, conducted more than 3,000 interviews during 2005 and 2006 with a nationally representative sample of adults aged 57 to 85. Face-to-face interviews and biomeasure collection took place in respondents' homes. Wave 2 interviews were conducted from August 2010 through May 2011, during which Wave 1 Respondents were re-interviewed. An attempt was also made to interview individuals who were sampled in Wave 1 but declined to participate. In addition, spouses or co-resident partners were also interviewed using the same instruments as the main respondents. This process resulted in 3,377 total respondents. The following files constitute Wave 2: Core Data, Disposition of Wave 1 Partner Data, Social Networks Data, Social Networks Update Data, Partner History Data, Partner History Update Data, Medications Data, Proxy Data, and Sleep Statistics Data.
Included in the Core files (Datasets 1 and 2) are demographic characteristics, such as gender, age, education, race, and ethnicity. Other topics covered respondents' social networks, social and cultural activity, physical and mental health including cognition, well-being, illness, history of sexual and intimate partnerships, and patient-physician communication, in addition to bereavement items. Data were also collected from respondents on the following items and modules: social activity items, physical contact module, sexual interest module, get up and go assessment of physical function, and a panel of biomeasures, including weight, waist circumference, height, blood pressure, smell, saliva collection, and taste.
The Disposition of Wave 1 Partner files (Datasets 3 and 4) detail information derived from Section 6A items regarding the partner from Wave 1 within the questionnaire. This provides a complete history for respondent partners across both waves.
The Social Networks files (Datasets 5 and 6) contain one record for each person identified on the network roster. Respondents who refused to participate in the roster or who did not identify anyone are not represented in this file.
The Social Networks Update files (Datasets 7 and 8) detail respondents' current relationship status with each person identified on the network roster.
The Partner History file (Dataset 9) contains one record for each marriage, cohabitation, or romantic relationship identified in Section 6A of the questionnaire, including a current partner in Wave 2 but excluding the partner from Wave 1.
The Partner History Update file (Dataset 10) details respondents' current sexual partner information, as well as marital and cohabiting status.
The Medications Data file (Dataset 11) contains records for items listed in the medications log.
The Proxy Data files (Datasets 12 and 13) contain information from proxy interviews administered for Wave 1 Respondents who were either deceased or whose health was too poor to participate in Wave 2.
The Sleep Statistics Data files (Dataset 14 and 15) provide information on actigraphy sleep variables.
Citation View help for Citation
Funding View help for Funding
Subject Terms View help for Subject Terms
Geographic Coverage View help for Geographic Coverage
Restrictions View help for Restrictions
Users interested in obtaining the Restricted-Use data from NACDA must request and complete the NSHAP Restricted Data Use Agreement form. Users can download this form from the download page associated with this data set. Completed forms with original signature(s) should be emailed to firstname.lastname@example.org.
Distributor(s) View help for Distributor(s)
Time Period(s) View help for Time Period(s)
Date of Collection View help for Date of Collection
Data Collection Notes View help for Data Collection Notes
This collection is being released in seventeen parts: Datasets 1 through 15 contain the ICPSR-processed files; Dataset 16 contains the original Public-Use Stata data files with extended and nonextended missing values provided by the P.I. in a zip file package. Dataset 17 contains the original Restricted-Use Stata data files provided by the P.I. in a zip file package.
The Core Data (Datasets 1 and 2), Disposition of Wave 1 Partner Data (Datasets 3 and 4), Social Networks Data (Datasets 5 and 6), Social Networks Update Data (Datasets 7 and 8), Proxy Data (Datasets 12 and 13), and Sleep Statistics Data (Datasets 14 and 15) are available as both Public- and Restricted-Use. The Partner History Data (Dataset 9), Partner History Update Data (Dataset 10), and Medications Data (Dataset 11) are only available as Restricted-Use.
Please refer to the related data collections ICPSR 20541, National Social Life, Health, and Aging Project (NSHAP): Wave 1 and ICPSR 36873, National Social Life, Health and Aging Project (NSHAP): Wave 3 for further information regarding the NSHAP project.
For further information about the National Social Life, Health, and Aging Project (NSHAP), please see the NORC at the University of Chicago Web site.
Users can subscribe to the NSHAP data mailing list at the University of Chicago NSHAP List website.
The identification variable SU_ID can be used to link the agency records across the waves of the survey.
Study Design View help for Study Design
In Wave 2, the instrument was simplified to facilitate both administration and analysis. Particularly, all questions were asked entirely in the in-person interview or the leave-behind questionnaire, as was not the case for the previous Wave 1 study design. In addition, partner history items regarding relationship details and sexual experience were combined into the same modules. As in Wave 1, selected biomeasures were administered to a randomized subset of respondents in cases where this provided adequate power for likely analyses. Users may refer to ICPSR 20541, National Social Life, Health, and Aging Project (NSHAP): Wave 1 for further study design information, as well as the P.I. Documentation and visit the NORC at the University of Chicago Web site.
Sample View help for Sample
In Wave 2, NSHAP returned to Wave 1 Respondents and eligible non-interviewed respondents from Wave 1 (Wave 1 Non-Interviewed Respondents). The Wave 2 sample was also extended to include the cohabiting spouses and romantic partners of Wave 1 Respondents and Wave 1 Non-Interviewed Respondents. Partners were considered to be eligible to participate in NSHAP if they resided in the household with Wave 1 Respondent/Wave 1 Non-Interviewed Respondent at the time of the Wave 2 interview and were at least 18 years of age. In order to restrict inferences to the population of Wave 1 age-eligible, analysts may use the variable AGEELIG in the Wave 2 Core Data file. Researchers wishing to compute design-based variance estimates may use the variables STRATUM and CLUSTER. These variables were constructed from the original sampling units for the purpose of variance estimation; the former may be treated as (pseudo) strata and the latter as (pseudo) Primary Sampling Units (PSUs). Users may refer to ICPSR 20541, National Social Life, Health, and Aging Project (NSHAP): Wave 1 for further sampling information, as well as the P.I. Documentation and visit the NORC at the University of Chicago Web site.
Time Method View help for Time Method
Universe View help for Universe
Community-dwelling individuals ages 57-85, Wave 1 Respondents, and eligible non-interviewed respondents from Wave 1 (Wave 1 Non-Interviewed Respondents). Cohabiting spouses and romantic partners of Wave 1 Respondents and Wave 1 Non-Interviewed Respondents living within the household, age 18 years or older.
Unit(s) of Observation View help for Unit(s) of Observation
Method of Data Collection View help for Method of Data Collection
Mode of Data Collection View help for Mode of Data Collection
Response Rates View help for Response Rates
The overall unconditional response rate for the Wave 2 panel was 74 percent; the conditional response rate of Wave 1 respondents was 89 percent; the conditional response rate of partners was 84 percent; and the conversion rate for Wave 1 nonrespondents was 26 percent. For additional information on response rates, please refer to the NORC at the University of Chicago web site.
Original Release Date View help for Original Release Date
Version History View help for Version History
Additional documentation (two crosswalks) has been made available to help users track variables across the multiple waves. The data and documentation were also updated. In addition, Public- and Restricted-Use versions of data were renamed and assigned their own data set numbers.
2018-06-22 This collection was updated to include public-use versions of datasets 1-4 and 8-9 and the public-use codebook was updated to reflect these changes. In addition, the titles for all files were updated to reflect the new study title.2018-02-15 The citation of this study may have changed due to the new version control system that has been implemented. The previous citation was:
- Waite, Linda J., Kathleen A. Cagney, William Dale, Elbert Huang, Edward O. Laumann, Martha K. McClintock, Colm A. O'Muircheartaigh, L. Phillip Schumm, and Benjamin Cornwell. National Social Life, Health, and Aging Project (NSHAP): Wave 2 and Partner Data Collection, [United States], 2010-2011. ICPSR34921-v4. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2019-06-19. http://doi.org/10.3886/ICPSR34921.v4
2018-02-13 Data files and variables were added and edited by the data producer; ICPSR has updated the data and documentation to reflect these changes.
2014-04-29 ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:
- Standardized missing values.
- Checked for undocumented or out-of-range codes.
Weight View help for Weight
The data are not weighted, but contain two weight variables within the Core Data, which users may wish to apply during analysis. Respondent-level weights representing the inverse probability of selection are contained in the variable WEIGHT_SEL. A second set of weights incorporating a non-response adjustment based on age and urbanicity is contained in the variable WEIGHT_ADJ. Both sets of weights are scaled to sum to the final sample size (3,377). For additional information on weights, please refer to the NORC at the University of Chicago web site.
As noted above, in each wave there is a variable called WEIGHT_ADJ which is non-missing for all respondents in that wave, and which adjusts for differing probabilities of selection as well as differential non-response. These weight variables should be used for all cross-sectional analyses. Please note that the WEIGHT_ADJ variable differs across waves (since the selection probabilities and non-response vary across waves).
With respect to longitudinal analyses, NSHAP does not yet have a true panel weight (currently in progress). The Wave 2 weight variable (WEIGHT_ADJ) should be used for longitudinal analyses until the panel weight is created. The Wave 2 weight is non-missing for all but 38 respondents with data for multiple (i.e., at least two) waves. Thus, this weight is adequate for longitudinal analyses using the subset of respondents with data from Wave 2 and/or at least two waves (this includes many typical longitudinal analyses). It is not advised to use this weight variable for those cases where someone wishes to include those respondents with data from only one wave, except for those with data only from Wave 2).
The public-use data files in this collection are available for access by the general public. Access does not require affiliation with an ICPSR member institution.
This study is maintained and distributed by the National Archive of Computerized Data on Aging (NACDA), the aging program within ICPSR. NACDA is sponsored by the National Institute on Aging (NIA) at the National Institutes of Heath (NIH).