L Phillip Schumm
Biographic Data
| ID | 140630 |
|---|---|
| NAME | L Phillip Schumm |
| GIVEN NAMES | L Phillip |
| FAMILY NAME | Schumm |
| SIGNATURE | SCHUMM L P |
| AFFILIATIONS | University of Chicago |
| ORCID | 0000-0002-3050-2429 |
| VERIFIED | Yes |
| TOTAL WORKS | 37 |
| TOTAL CITATIONS | 500 |
| AUTHOR COUNT | 37 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1993 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 9 |
Low Cost Social Science Surveys in Rural Areas: Maximizing Response Rates and Lowering Nonresponse Bias Through Creative Theory and Methodology
Short‐Interval Pregnancy Following Delivery in Catholic‐Affiliated Versus Non‐Catholic‐Affiliated Hospitals Among Patients Insured Through the Medicaid Program
Background As the number of U.S. Catholic‐affiliated hospitals increases, more patients who receive care at Catholic hospitals may face restrictions to reproductive healthcare services, including postpartum contraception and sterilization. Little is known about how Catholic hospital affiliation affects the likelihood of a short‐interval pregnancy following a delivery. A short interpregnancy interval is associated with poor obstetric outcomes in s…
Prediabetes Progression and Reversion: Social Factors and Racial/Ethnic Differences
Measuring Cognitive Function and Cognitive Decline With Response Time Data in the National Social Life, Health, and Aging Project
Objectives Scholarly, clinical, and policy interest in cognitive function has grown over the last several decades in part due to large increases in Alzheimer’s disease and related dementias as populations age. However, adequate measures of cognitive function have not been available in many research data sets. We argue that a wealth of previously unexploited survey data exists to model cognition and cognitive decline. Methods We use metadata of th…
Disentangling Selection Into Mode From Mode Effects
Objectives We investigate the impact of data collection mode on responses to variables in the National Social Life, Health, and Aging Project (NSHAP) Round 4 and discuss how potential mode differences should (and should not) be addressed in substantive analyses. Methods Among the set of respondents who were eligible to be contacted remotely in Round 4, we randomly selected 398 to be contacted instead for an in-person interview. We compare respons…
Measuring Cognitive Function In-Person and Remotely in Round 4 of the National Social Life, Health, and Aging Project
Objectives This paper describes the changes made to the collection of cognitive measures when the National Social Life, Health, and Aging Project (NSHAP) introduced remote modes of data collection. Methods In Round 4 (2021–2023), the longitudinal study transitioned from being conducted in-person to collecting data via multiple modes including in-person and remote modes: web, phone, and paper-and-pencil. The team began with the measures used in Ro…
Preconception care utilization: Self-report versus claims-based measures among women with Medicaid
The objective of this study is to compare self-reported preconception care utilization (PCU) among Medicaid-covered births to Medicaid claims. We identified all Medicaid-covered births to women ages 15–45 in 26 states in the year 2012 among the Pregnancy Risk Assessment and Monitoring System (PRAMS) survey and Medicaid Analytic eXtract (MAX) claims data, and identified preconception services in the latter using diagnosis codes published by Health…
Sample Design and Estimation in the National Social Life, Health, and Aging Project: Round 3 (2015–2016)
Together C1 and C2 permit inference about the U.S. population of home-dwelling adults born from 1920 to 1965. In addition, three waves of data from C1 are now available, permitting longitudinal analyses of health outcomes and their determinants among older adults
Analyzing Birth Cohorts With the National Social Life, Health, and Aging Project
We describe features of the NSHAP data of which researchers should be aware when conducting cohort analyses with these data
Tracking Egocentric Social Network Change Across Three Rounds of National Survey Data
These data provide new insights into the dynamic nature of networks in later life. Data limitations, and directions for future research, are discussed
The potential of online social networking data for augmenting the study of high-risk personal networks among young men who have sex with men at-risk for HIV
Socio-Structural and Neighborhood Predictors of Incident Criminal Justice Involvement in a Population-Based Cohort of Young Black MSM and Transgender Women
Comparing loneliness in England and the United States, 2014-2016: Differential item functioning and risk factor prevalence and impact
Examining the effects of loneliness on health using in-home panel studies with biomeasures: Benefits, challenges, and implications for the Evolutionary Theory of Loneliness. A commentary on Das (2018)
CommunityRx: A Real-World Controlled Clinical Trial of a Scalable, Low-Intensity Community Resource Referral Intervention
Objectives. To test the effect of CommunityRx, a scalable, low-intensity intervention that matches patients to community resources, on mental health-related quality of life (HRQOL) (primary outcome), physical HRQOL, and confidence in finding resources. Methods. A real-world trial assigned publicly insured residents of Chicago, Illinois, aged 45 to 74 years to an intervention (n = 209) or control (n = 202) group by alternating calendar week, Decem…
At the intersection of criminal justice involvement and sexual orientation: Dynamic networks and health among a population-based sample of young Black men who have sex with men
Network dynamics of HIV risk and prevention in a population-based cohort of young Black men who have sex with men
Critical to the development of improved HIV elimination efforts is a greater understanding of how social networks and their dynamics are related to HIV risk and prevention. In this paper, we examine network stability of confidant and sexual networks among young black men who have sex with men (YBMSM). We use data from uConnect (2013–2016), a population-based, longitudinal cohort study. We use an innovative approach to measure both sexual and conf…
Response to Dr. Kawada
The Utility and Dynamics of Salivary Sex Hormone Measurements in the National Social Life, Health, and Aging Project, Wave 2
NSHAP Waves 1 and 2 are the first U.S. probability sample studies to measure these 4 salivary sex hormones simultaneously, providing individual profiles 5 years apart. Wave 2 data demonstrate differences by gender and trends by age that are similar to those found in other saliva-based and serum-based studies of free steroid levels. The differences between waves arising from the change in assay laboratory need to be adjusted in future longitudinal…
Assessment of Sleep in the National Social Life, Health, and Aging Project
The survey and actigraphy data provide different information about sleep characteristics. The opportunity to examine actigraph-estimated sleep characteristics in a nationally representative sample of older adults allows novel analyses of the associations of sleep parameters with social and health data
Measuring Cognition: The Chicago Cognitive Function Measure in the National Social Life, Health and Aging Project, Wave 2
A survey-based adaptation of the MoCA was successfully integrated into a nationally representative sample of older adults, NSHAP Wave 2
Olfactory Function in Wave 2 of the National Social Life, Health, and Aging Project
We report for the first time 3 facets of olfactory function and its association with age and gender in a representative sample of U.S. older adults. Future analyses of these data are needed to elucidate the sense of smell's role in physical, social, and mental health with aging
Geriatric Syndromes and Functional Status in NSHAP: Rationale, Measurement, and Preliminary Findings
The NSHAP provides a comprehensive assessment of geriatric health. Our findings are consistent with the literature and support the construct of the study measures
Glycosylated Hemoglobin Testing in the National Social Life, Health, and Aging Project
Collection of HbA1C in Wave 2 permits researchers to examine the relationship between HbA1C and new health and social measures added in Wave 2, and to identify factors related to the change in HbA1C. Changes in collection protocol and labs between waves may have yielded small systematic differences that require analysts to carefully interpret absolute HbA1C values. We recommend analytic methods for cross wave differences in HbA1C and steps to ens…
Sensory Function: Insights From Wave 2 of the National Social Life, Health, and Aging Project
Sensory function declines across age groups, with notable gender differences for hearing and light touch. Further analysis of sensory measures from NSHAP Wave 2 may provide important information on how sensory declines are related to health, social function, quality of life, morbidity, and mortality in this nationally representative sample of older adults
The Social Connectedness of Older Adults: A National Profile
For decades, scholars have wrestled with the assumption that old age is characterized by social isolation. However, there has been no systematic, nationally representative evaluation of this possibility in terms of social network connectedness. In this article, we develop a profile of older adults' social integration with respect to nine dimensions of interpersonal networks and voluntary associations. We use new data from the National Social Life…
Social Networks in the NSHAP Study: Rationale, Measurement, and Preliminary Findings
The data reiterate the relevance of social networks to older adults' health. We close by discussing how the NSHAP measures might be employed in future analyses of health
Assessment of Social Network Change in a National Longitudinal Survey
These data provide new insight into the dynamic nature of networks in later life, revealing norms of network turnover, expansion, and weakening. Data limitations are discussed
Sexuality: Measures of Partnerships, Practices, Attitudes, and Problems in the National Social Life, Health, and Aging Study
Data obtained in the NSHAP can be used to construct key measures of sexuality among older adults; to examine sexuality itself; and to explore the link between sexuality, health, well-being, and other dimensions of the lives of older adults
Medication Data Collection and Coding in a Home-Based Survey of Older Adults
Nearly all NSHAP respondents cooperated with the medication use data collection protocol. Medication data obtained by the in-home, direct observation medication log method were found to be internally and externally valid
Network Mixing and Network Influences Most Linked to HIV Infection and Risk Behavior in the HIV Epidemic Among Black Men Who Have Sex With Men
Objectives. We evaluated network mixing and influences by network members upon Black men who have sex with men. Methods. We conducted separate social and sexual network mixing analyses to determine the degree of mixing on risk behaviors (e.g., unprotected anal intercourse [UAI]). We used logistic regression to assess the association between a network “enabler” (would not disapprove of the respondent’s behavior) and respondent behavior. Results. A…
Assessment of Sensory Function in the National Social Life, Health, and Aging Project
Sensory function is important in studies of aging and health both because it is an important health outcome and also because a decline in functioning can be symptomatic of or predict other health conditions. Although the objective measures provide considerably more precision than the self-report items, the latter can be valuable for imputation of missing data and for understanding differences in how older adults perceive their own sensory ability
Network dynamics of HIV risk and prevention in a population-based cohort of young Black men who have sex with men
Critical to the development of improved HIV elimination efforts is a greater understanding of how social networks and their dynamics are related to HIV risk and prevention. In this paper, we examine network stability of confidant and sexual networks among young black men who have sex with men (YBMSM). We use data from uConnect (2013–2016), a population-based, longitudinal cohort study. We use an innovative approach to measure both sexual and conf…
Survey Field Methods for Expanded Biospecimen and Biomeasure Collection in NSHAP Wave 2
Improved field methods included in-home collection, temperature control, establishment of a central survey biomeasure laboratory, and shipping, all of which were crucial for successful collection by the field interviewers and accurate laboratory assay of the biomeasures (92.1% average co-operation rate and 97.3% average assay success rate). Developed for home interviews, these biomeasures are readily applicable to other surveys
Tracking Egocentric Social Network Change Across Three Rounds of National Survey Data
These data provide new insights into the dynamic nature of networks in later life. Data limitations, and directions for future research, are discussed
Geriatric Syndromes and Functional Status in NSHAP: Rationale, Measurement, and Preliminary Findings
The NSHAP provides a comprehensive assessment of geriatric health. Our findings are consistent with the literature and support the construct of the study measures
CommunityRx: A Real-World Controlled Clinical Trial of a Scalable, Low-Intensity Community Resource Referral Intervention
Objectives. To test the effect of CommunityRx, a scalable, low-intensity intervention that matches patients to community resources, on mental health-related quality of life (HRQOL) (primary outcome), physical HRQOL, and confidence in finding resources. Methods. A real-world trial assigned publicly insured residents of Chicago, Illinois, aged 45 to 74 years to an intervention (n = 209) or control (n = 202) group by alternating calendar week, Decem…
Assessment of Sleep in the National Social Life, Health, and Aging Project
The survey and actigraphy data provide different information about sleep characteristics. The opportunity to examine actigraph-estimated sleep characteristics in a nationally representative sample of older adults allows novel analyses of the associations of sleep parameters with social and health data
Measuring Cognition: The Chicago Cognitive Function Measure in the National Social Life, Health and Aging Project, Wave 2
A survey-based adaptation of the MoCA was successfully integrated into a nationally representative sample of older adults, NSHAP Wave 2
The Utility and Dynamics of Salivary Sex Hormone Measurements in the National Social Life, Health, and Aging Project, Wave 2
NSHAP Waves 1 and 2 are the first U.S. probability sample studies to measure these 4 salivary sex hormones simultaneously, providing individual profiles 5 years apart. Wave 2 data demonstrate differences by gender and trends by age that are similar to those found in other saliva-based and serum-based studies of free steroid levels. The differences between waves arising from the change in assay laboratory need to be adjusted in future longitudinal…
Monitoring Aids and Other Rare Population Events: A Network Approach
This paper replicates and extends an earlier attempt to use data from the General Social Survey (GSS) to track the distribution of AIDS across demographic subgroups. (The GSS asks respondents whether they know a person with AIDS [PWA].) The gender, racial, age, and regional composition of the set of PWAs reported by GSS respondents is compared with that of the official AIDS cases reported to the Centers for Disease Control (CDC). In an attempt to…
Sample Design and Estimation in the National Social Life, Health, and Aging Project: Round 3 (2015–2016)
Together C1 and C2 permit inference about the U.S. population of home-dwelling adults born from 1920 to 1965. In addition, three waves of data from C1 are now available, permitting longitudinal analyses of health outcomes and their determinants among older adults
Comparing loneliness in England and the United States, 2014-2016: Differential item functioning and risk factor prevalence and impact
Field Survey Measures of Olfaction: The Olfactory Function Field Exam (Offe)
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, in…
Sensory Function: Insights From Wave 2 of the National Social Life, Health, and Aging Project
Sensory function declines across age groups, with notable gender differences for hearing and light touch. Further analysis of sensory measures from NSHAP Wave 2 may provide important information on how sensory declines are related to health, social function, quality of life, morbidity, and mortality in this nationally representative sample of older adults
Analyzing Birth Cohorts With the National Social Life, Health, and Aging Project
We describe features of the NSHAP data of which researchers should be aware when conducting cohort analyses with these data
Socio-Structural and Neighborhood Predictors of Incident Criminal Justice Involvement in a Population-Based Cohort of Young Black MSM and Transgender Women
Glycosylated Hemoglobin Testing in the National Social Life, Health, and Aging Project
Collection of HbA1C in Wave 2 permits researchers to examine the relationship between HbA1C and new health and social measures added in Wave 2, and to identify factors related to the change in HbA1C. Changes in collection protocol and labs between waves may have yielded small systematic differences that require analysts to carefully interpret absolute HbA1C values. We recommend analytic methods for cross wave differences in HbA1C and steps to ens…
Measuring Cognitive Function and Cognitive Decline With Response Time Data in the National Social Life, Health, and Aging Project
Objectives Scholarly, clinical, and policy interest in cognitive function has grown over the last several decades in part due to large increases in Alzheimer’s disease and related dementias as populations age. However, adequate measures of cognitive function have not been available in many research data sets. We argue that a wealth of previously unexploited survey data exists to model cognition and cognitive decline. Methods We use metadata of th…
Disentangling Selection Into Mode From Mode Effects
Objectives We investigate the impact of data collection mode on responses to variables in the National Social Life, Health, and Aging Project (NSHAP) Round 4 and discuss how potential mode differences should (and should not) be addressed in substantive analyses. Methods Among the set of respondents who were eligible to be contacted remotely in Round 4, we randomly selected 398 to be contacted instead for an in-person interview. We compare respons…
Monitoring Aids and Other Rare Population Events: A Network Approach
This paper replicates and extends an earlier attempt to use data from the General Social Survey (GSS) to track the distribution of AIDS across demographic subgroups. (The GSS asks respondents whether they know a person with AIDS [PWA].) The gender, racial, age, and regional composition of the set of PWAs reported by GSS respondents is compared with that of the official AIDS cases reported to the Centers for Disease Control (CDC). In an attempt to…
A Study of Sexuality and Health among Older Adults in the United States
BACKGROUND: Despite the aging of the population, little is known about the sexual behaviors and sexual function of older people. METHODS: We report the prevalence of sexual activity, behaviors, and problems in a national probability sample of 3005 U.S. adults (1550 women and 1455 men) 57 to 85 years of age, and we describe the association of these variables with age and health status. RESULTS: The unweighted survey response rate for this probabil…
The Social Connectedness of Older Adults: A National Profile
For decades, scholars have wrestled with the assumption that old age is characterized by social isolation. However, there has been no systematic, nationally representative evaluation of this possibility in terms of social network connectedness. In this article, we develop a profile of older adults' social integration with respect to nine dimensions of interpersonal networks and voluntary associations. We use new data from the National Social Life…
Social Networks in the NSHAP Study: Rationale, Measurement, and Preliminary Findings
The data reiterate the relevance of social networks to older adults' health. We close by discussing how the NSHAP measures might be employed in future analyses of health
Sexuality: Measures of Partnerships, Practices, Attitudes, and Problems in the National Social Life, Health, and Aging Study
Data obtained in the NSHAP can be used to construct key measures of sexuality among older adults; to examine sexuality itself; and to explore the link between sexuality, health, well-being, and other dimensions of the lives of older adults
Medication Data Collection and Coding in a Home-Based Survey of Older Adults
Nearly all NSHAP respondents cooperated with the medication use data collection protocol. Medication data obtained by the in-home, direct observation medication log method were found to be internally and externally valid
Assessment of Sensory Function in the National Social Life, Health, and Aging Project
Sensory function is important in studies of aging and health both because it is an important health outcome and also because a decline in functioning can be symptomatic of or predict other health conditions. Although the objective measures provide considerably more precision than the self-report items, the latter can be valuable for imputation of missing data and for understanding differences in how older adults perceive their own sensory ability
The Influence of Stress, Depression, and Anxiety on PSA Screening Rates in a Nationally Representative Sample
BACKGROUND: Prostate-specific antigen (PSA) testing for prostate cancer is controversial, with concerning rates of both overscreening and underscreening. The reasons for the observed rates of screening are unknown, and few studies have examined the relationship of psychological health to PSA screening rates. Understanding this relationship can help guide interventions to improve informed decision-making for screening. METHODS: A nationally repres…
Network Mixing and Network Influences Most Linked to HIV Infection and Risk Behavior in the HIV Epidemic Among Black Men Who Have Sex With Men
Objectives. We evaluated network mixing and influences by network members upon Black men who have sex with men. Methods. We conducted separate social and sexual network mixing analyses to determine the degree of mixing on risk behaviors (e.g., unprotected anal intercourse [UAI]). We used logistic regression to assess the association between a network “enabler” (would not disapprove of the respondent’s behavior) and respondent behavior. Results. A…
The Utility and Dynamics of Salivary Sex Hormone Measurements in the National Social Life, Health, and Aging Project, Wave 2
NSHAP Waves 1 and 2 are the first U.S. probability sample studies to measure these 4 salivary sex hormones simultaneously, providing individual profiles 5 years apart. Wave 2 data demonstrate differences by gender and trends by age that are similar to those found in other saliva-based and serum-based studies of free steroid levels. The differences between waves arising from the change in assay laboratory need to be adjusted in future longitudinal…
Assessment of Sleep in the National Social Life, Health, and Aging Project
The survey and actigraphy data provide different information about sleep characteristics. The opportunity to examine actigraph-estimated sleep characteristics in a nationally representative sample of older adults allows novel analyses of the associations of sleep parameters with social and health data
Measuring Cognition: The Chicago Cognitive Function Measure in the National Social Life, Health and Aging Project, Wave 2
A survey-based adaptation of the MoCA was successfully integrated into a nationally representative sample of older adults, NSHAP Wave 2
Olfactory Function in Wave 2 of the National Social Life, Health, and Aging Project
We report for the first time 3 facets of olfactory function and its association with age and gender in a representative sample of U.S. older adults. Future analyses of these data are needed to elucidate the sense of smell's role in physical, social, and mental health with aging
Geriatric Syndromes and Functional Status in NSHAP: Rationale, Measurement, and Preliminary Findings
The NSHAP provides a comprehensive assessment of geriatric health. Our findings are consistent with the literature and support the construct of the study measures
Glycosylated Hemoglobin Testing in the National Social Life, Health, and Aging Project
Collection of HbA1C in Wave 2 permits researchers to examine the relationship between HbA1C and new health and social measures added in Wave 2, and to identify factors related to the change in HbA1C. Changes in collection protocol and labs between waves may have yielded small systematic differences that require analysts to carefully interpret absolute HbA1C values. We recommend analytic methods for cross wave differences in HbA1C and steps to ens…
Sensory Function: Insights From Wave 2 of the National Social Life, Health, and Aging Project
Sensory function declines across age groups, with notable gender differences for hearing and light touch. Further analysis of sensory measures from NSHAP Wave 2 may provide important information on how sensory declines are related to health, social function, quality of life, morbidity, and mortality in this nationally representative sample of older adults
Survey Field Methods for Expanded Biospecimen and Biomeasure Collection in NSHAP Wave 2
Improved field methods included in-home collection, temperature control, establishment of a central survey biomeasure laboratory, and shipping, all of which were crucial for successful collection by the field interviewers and accurate laboratory assay of the biomeasures (92.1% average co-operation rate and 97.3% average assay success rate). Developed for home interviews, these biomeasures are readily applicable to other surveys
Assessment of Social Network Change in a National Longitudinal Survey
These data provide new insight into the dynamic nature of networks in later life, revealing norms of network turnover, expansion, and weakening. Data limitations are discussed
Field Survey Measures of Olfaction: The Olfactory Function Field Exam (Offe)
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, in…
Response to Dr. Kawada
At the intersection of criminal justice involvement and sexual orientation: Dynamic networks and health among a population-based sample of young Black men who have sex with men
Network dynamics of HIV risk and prevention in a population-based cohort of young Black men who have sex with men
Critical to the development of improved HIV elimination efforts is a greater understanding of how social networks and their dynamics are related to HIV risk and prevention. In this paper, we examine network stability of confidant and sexual networks among young black men who have sex with men (YBMSM). We use data from uConnect (2013–2016), a population-based, longitudinal cohort study. We use an innovative approach to measure both sexual and conf…
Examining the effects of loneliness on health using in-home panel studies with biomeasures: Benefits, challenges, and implications for the Evolutionary Theory of Loneliness. A commentary on Das (2018)
CommunityRx: A Real-World Controlled Clinical Trial of a Scalable, Low-Intensity Community Resource Referral Intervention
Objectives. To test the effect of CommunityRx, a scalable, low-intensity intervention that matches patients to community resources, on mental health-related quality of life (HRQOL) (primary outcome), physical HRQOL, and confidence in finding resources. Methods. A real-world trial assigned publicly insured residents of Chicago, Illinois, aged 45 to 74 years to an intervention (n = 209) or control (n = 202) group by alternating calendar week, Decem…
The potential of online social networking data for augmenting the study of high-risk personal networks among young men who have sex with men at-risk for HIV
Medicine (31 works) · Psychology (26 works) · Gerontology (20 works) · Population (15 works) · Sociology (15 works) · Computer Science (12 works) · Demography (12 works) · Demography (11 works) · Health disparities and outcomes (10 works) · Psychiatry (9 works)