Kathryn Leifheit

Dr. Kathryn Leifheit

orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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26 July 2021 in American Journal of Epidemiology
Verified
Journal Article
Open access
PDF file
KLKathryn Leifheit
Kathryn Leifheit
SLSabriya L Linton
Sabriya L Linton
JRJulia Raifman
Julia Raifman
GSGabriel L Schwartz
Gabriel L Schwartz
EBEmily A Benfer
Emily A Benfer
CPCraig Evan Pollack
Craig Evan Pollack
The coronavirus disease 2019 (COVID-19) pandemic and associated economic crisis have placed millions of US households at risk of eviction. Evictions may accelerate COVID-19 transmission by decreasing individuals’ ability to socially distance. We leveraged variation in the expiration of eviction moratoriums in US states to test for associations between evictions and COVID-19 incidence and mortality. The study included 44 US states that instituted eviction moratoriums, followed from March 13 to September 3, 2020. We modeled associations using a difference-in-difference approach with an event-study specification. Negative binomial regression models of cases and deaths included fixed effects for state and week and controlled for time-varying indicators of testing, stay-at-home orders, school closures, and mask mandates. COVID-19 incidence and mortality increased steadily in states after eviction moratoriums expired, and expiration was associated with a doubling of COVID-19 incidence (incidence rate ratio = 2.1; 95% confidence interval (CI): 1.1, 3.9) and a 5-fold increase in COVID-19 mortality (mortality rate ratio = 5.4; CI: 3.1, 9.3) 16 weeks after moratoriums lapsed. These results imply an estimated 433,700 excess cases (CI: 365,200, 502,200) and 10,700 excess deaths (CI: 8,900, 12,500) nationally by September 3, 2020. The expiration of eviction moratoriums was associated with increased COVID-19 incidence and mortality, supporting the public-health rationale for eviction prevention to limit COVID-19 cases and deaths.

KLKathryn Leifheit
Kathryn Leifheit
GSGabriel Schwartz
Gabriel Schwartz
CPCraig E. Pollack
Craig E. Pollack
KEKathryn J. Edin
Kathryn J. Edin
Maureen BlackMaureen Black
Maureen Black
KAKeri N. Althoff
Keri N. Althoff
Introduction: Housing insecurity is increasingly commonplace among disadvantaged women and children. We measured the individual- and population-level impact of severe housing insecurity during pregnancy on adverse birth and infant outcomes. Methods: We analyzed data from 3428 mother–infant dyads enrolled in the Fragile Families and Child Wellbeing Study, a prospective cohort study representing births in 20 large U.S. cities from 1998 to 2000. Severe housing insecurity was defined as threatened eviction or homelessness during pregnancy. Outcomes included low birth weight and/or preterm birth, admission to a neonatal intensive care unit (NICU) or stepdown facility, extended hospitalization after delivery, and infant health and temperament. We estimated exposure–outcome associations with risk ratios adjusted for pre-pregnancy maternal sociodemographic and heath factors and calculated a population attributable fraction (PAF) of outcomes attributable to severe housing insecurity. Results: We found statistically significant associations between severe housing insecurity during pregnancy and low birth weight and/or preterm birth (risk ratio (RR] 1.73, 95% confidence interval (CI) 1.28, 2.32), NICU or stepdown stay (RR 1.64, CI 1.17, 2.31), and extended hospitalization (RR 1.66, CI 1.28, 2.16). Associations between housing insecurity and infant fair or poor health (RR 2.62, CI 0.91, 7.48) and poor temperament (RR 1.52, CI 0.98, 2.34) were not statistically significant. PAF estimates ranged from 0.9–2.7%, suggesting that up to three percent of adverse birth and infant outcomes could be avoided by eliminating severe housing insecurity among low-income, pregnant women in US cities. Conclusions: Results suggest that housing insecurity during pregnancy shapes neonatal and infant health in disadvantaged urban families.

17 December 2021 in JAMA Network Open
Verified
Journal Article
Open access
PDF file
KLKathryn Leifheit
Kathryn Leifheit
CPCraig E. Pollack
Craig E. Pollack
JRJulia Raifman
Julia Raifman
GSGabriel L. Schwartz
Gabriel L. Schwartz
RKRobert D. Koehler
Robert D. Koehler
SLSabriya L. Linton
Sabriya L. Linton
Housing insecurity, a factor know to be associated with mental distress,1 has been widespread in the US. Following decades of increasing housing costs, the median household income in the US is no longer adequate to pay for basic needs.2 In 2019, 1 in 3 renter households earning less than $75 000 lived in unaffordable housing, putting more than 30% of their income toward rent and utilities.3 Stretched thin, renters face eviction with troubling frequency. Nationally, there are 6 eviction filings annually for every 100 renter households4; the rate is higher among female-headed households, families with children, and Black and Latinx people.5-7 During the last decade, a growing body of evidence has linked eviction and the threat of eviction to poor mental health outcomes, such as depressive symptoms, anxiety, and suicide.8-13

4 June 2021 in Open Forum Infectious Diseases
Verified
Journal Article
Open access
PDF file
KLKathryn Leifheit
Kathryn Leifheit
LCLelia H Chaisson
Lelia H Chaisson
JMJesus A Medina
Jesus A Medina
RWRafik N Wahbi
Rafik N Wahbi
CSChelsea L Shover
Chelsea L Shover
We reviewed publicly available data from major US health jurisdictions to compare severe acute respiratory syndrome coronavirus 2 case fatality rates in people experiencing homelessness with the general population. The case fatality rate among people experiencing homelessness was 1.3 times (95% CI, 1.1–1.5) that of the general population, suggesting that people experiencing homelessness should be prioritized for vaccination.

1 August 2020 in SSM - Population Health
Verified
Journal Article
Open access
KLKathryn Leifheit
Kathryn Leifheit
GSGabriel Schwartz
Gabriel Schwartz
CPCraig E. Pollack
Craig E. Pollack
MBMaureen M. Black
Maureen M. Black
KEKathryn J. Edin
Kathryn J. Edin
JMJacky Jennings PhD MPH
Jacky Jennings PhD MPH
Eviction affects a substantial share of U.S. children, but its effects on child health are largely unknown. Our objectives were to examine how eviction relates to 1) children's health and sociodemographic characteristics at birth, 2) neighborhood poverty and food security at age 5, and 3) obesity in later childhood and adolescence. We analyzed data from the Fragile Families and Child Wellbeing Study, a longitudinal cohort of children born in 20 large U.S. cities. Children who lived in rental housing with known eviction histories and measured outcomes were included. We compared maternal and infant health and sociodemographic characteristics at the time of the child's birth. We then characterized the associations between eviction and neighborhood poverty and food security at age 5 and obesity at ages 5, 9, and 15 using log binomial regression with inverse probability of treatment and censoring weights. Of the 2556 children included in objective 1, 164 (6%) experienced eviction before age 5. Children who experienced eviction had lower household income and maternal education and were more likely to be born to mothers who were unmarried, smoked during pregnancy, and had mental health problems. Evicted and non-evicted children were equally likely to experience high neighborhood poverty at age 5 (prevalence ratio (PR) = 1.03, 95% CI 0.82, 1.29) but had an increased prevalence of low food security (PR = 2.16, 95% CI 1.46, 3.19). Obesity prevalence did not differ at age 5 (PR = 1.01; 95% CI 0.58, 1.75), 9 (PR = 1.08; 95% CI 0.715, 1.55); or 15 (PR = 1.05; 95% CI 0.51, 2.18). In conclusion, children who went on to experience eviction showed signs of poor health and socioeconomic disadvantage already at birth. Eviction in early childhood was not associated with children's likelihood of neighborhood poverty, suggesting that eviction may not qualitatively change children's neighborhood conditions in this disadvantaged sample. Though we saw evidence supporting an association with low child food security at age 5, we did not find eviction to be associated with obesity in later childhood and adolescence.

14 June 2022 in Journal of Epidemiology and Community Health
Verified
Journal Article
Open access
PDF file
KLKathryn Leifheit
Kathryn Leifheit
GSGabriel L Schwartz
Gabriel L Schwartz
CPCraig Evan Pollack
Craig Evan Pollack
SLSabriya L Linton
Sabriya L Linton
Housing may be at once the most powerful and underused tool at our disposal to improve population health. Using examples from the USA, we argue that current levels of housing insecurity are the result of clear and inequitable policy choices, leading to the entrenchment of health inequities—particularly, across race and class. Solutions to housing insecurity must, therefore, be structural. The COVID-19 pandemic has opened a window of opportunity for these structural housing policy reforms. Through justice- and action-oriented research, health researchers can inform the development and implementation of housing policies that advance health equity. We offer a series of recommendations to better position our field to achieve this goal.