Evidence map›Paper›PMID 37548177›Full record

ArticlePublic health nutrition2023

Early results of a natural experiment evaluating the effects of a local minimum wage policy on the diet-related health of low-wage workers, 2018-2020.

Caitlin E Caspi, Maria Fernanda Gombi-Vaca, Julian Wolfson, Lisa J Harnack, Molly De Marco, Rebekah Pratt, Thomas Durfee, Samuel L Myers

Abstract read
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In one paragraph

Article in Public health nutrition, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Caitlin E CaspiRudd Center for Food Policy and Health, University of Connecticut, 1 Constitution Plaza, Hartford, CT061032, USA.
Maria Fernanda Gombi-VacaRudd Center for Food Policy and Health, University of Connecticut, 1 Constitution Plaza, Hartford, CT061032, USA.
Julian WolfsonDivision of Biostatistics, School of Public Health, University of Minnesota, A460 Mayo Building MMC 303, 425 Delaware St. SE, Minneapolis, MN, USA.
Lisa J HarnackDivision of Epidemiology and Community Health, Suite 300, University of Minnesota, 1300 South 2nd St, Minneapolis, MN, USA.ORCID 0000-0003-1963-5316
Molly De MarcoCenter for Health Promotion & Disease Prevention, University of North Carolina at Chapel Hill, 1700 M.L.K. Jr Blvd #7426, Chapel Hill, NC27514, USA.
Rebekah PrattDepartment of Family Medicine and Community Health, University of Minnesota, 717 Delaware St. se, Minneapolis, MN55445, USA.
Thomas DurfeeThe Roy Wilkins Center for Human Relations and Social Justice, Hubert H. Humphrey School of Public Affairs, University of Minnesota, 270 Humphrey Center, 301 19th Avenue South, Minneapolis, MN, USA.
Samuel L MyersThe Roy Wilkins Center for Human Relations and Social Justice, Hubert H. Humphrey School of Public Affairs, University of Minnesota, 270 Humphrey Center, 301 19th Avenue South, Minneapolis, MN, USA.

Funding

University of Minnesota Clinical and Translational Science Institute (UMN CTSI)UL1TR002494 · NCATS · UNIVERSITY OF MINNESOTA · PI BLAZAR, BRUCE R, WEISDORF, DANIEL J · 2018 to 2022
$34.9M
A Natural Experiment Evaluating the Effect of a Minimum Wage Increase on Obesity and Diet-Related OutcomeR01DK118664 · NIDDK · UNIVERSITY OF MINNESOTA · PI CASPI, CAITLIN EICHER · 2018 to 2022
$3.2M
NCATS NIH HHS UL1 TR002494NIDDK NIH HHS R01 DK118664
6 · The paper itself

Abstract

objectiveThe current study presents results of a midpoint analysis of an ongoing natural experiment evaluating the diet-related effects of the Minneapolis Minimum Wage Ordinance, which incrementally increases the minimum wage to $15/h.

designA difference-in-difference (DiD) analysis of measures collected among low-wage workers in two U.S. cities (one city with a wage increase policy and one comparison city). Measures included employment-related variables (hourly wage, hours worked and non-employment assessed by survey questions with wages verified by paystubs), BMI measured by study scales and stadiometers and diet-related mediators (food insecurity, Supplemental Nutrition Assistance Program (SNAP) participation and daily servings of fruits and vegetables, whole-grain rich foods and foods high in added sugars measured by survey questions).

settingMinneapolis, Minnesota and Raleigh, North Carolina.

participantsA cohort of 580 low-wage workers (268 in Minneapolis and 312 in Raleigh) who completed three annual study visits between 2018 and 2020.

resultsIn DiD models adjusted for time-varying and non-time-varying confounders, there were no statistically significant differences in variables of interest in Minneapolis compared with Raleigh. Trends across both cities were evident, showing a steady increase in hourly wage, stable BMI, an overall decrease in food insecurity and non-linear trends in employment, hours worked, SNAP participation and dietary outcomes.

conclusionThere was no evidence of a beneficial or adverse effect of the Minimum Wage Ordinance on health-related variables during a period of economic and social change. The COVID-19 pandemic and other contextual factors likely contributed to the observed trends in both cities.

Indexed as

Food AssistancePandemicsDietFruitHumansPolicySalaries and Fringe BenefitsCOVID-19Food insecurityMinimum wagePolicy evaluationSocial determinants of health

Identifiers

PMID37548177
PMCPMC10641626

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.