Publications

L.F. Fontes, M. Mrejen, B. Rache, and R. Rocha.  2023. "Economic Distress and Children's Mental Health: Evidence from the Brazilian High Risk Cohort Study for Mental Conditions." The Economic Journal. [link]

Abstract: This paper assesses the effects of adverse economic shocks on children’s mental health. We rely on the Brazilian High Risk Cohort Study for Mental Conditions, which provides an unprecedented array of data on psychopathology, life events, family medical history as well as parental behavior and polygenic scores for mental disorders over a 10-year period. Our empirical strategy exploits parental job loss events over time in a difference-in-differences framework. We document that parental job loss significantly worsens children’s mental health resulting in increased clinical diagnoses of mental disorders. These results are robust to several specifications and pre-trends. Heterogeneous results and mechanism analysis indicate that psychological distress in the household brought about by job loss events may be a key mechanism affecting children’s mental health.

S. L. Bastos, L., Aguilar, S., Rache, B., Maçaira, P., Baião, F., Cerbino-Neto, J., Rocha, R., Hamacher, S., T. Ranzani, O., A. Bozza, F. 2022. "Primary healthcare protects vulnerable populations from inequity in COVID-19 vaccination: An ecological analysis of nationwide data from Brazil." The Lancet Regional Health - Americas. [link]

Summary: We describe the progression of the Brazilian immunization program for COVID-19, and the association of socioeconomic development with vaccination rates, considering the potential protective effect of primary health care coverage. We performed an ecological analysis of COVID-19 immunization data from the Brazilian National Immunization Program from January 17 to August 31, 2021. We estimated the association of human development index (HDI) levels (low, medium, and high) with age-sex standardized first dose coverage using a multivariable negative binomial regression model and evaluated the interaction between HDI and primary health care coverage. In Brazil, socioeconomic disparities are negatively associated with first dose vaccination rate. Primary health care coverage mitigates these disparities, suggesting that primary health care coverage is associated with more equitable access to vaccines in vulnerable locations.

Ferrari, F., Giannichi, B., Resende, B., Paiva, L., Rocha, R., Falbel, F., Rache, B., Adami, F., F. M. Rezende, L. 2022. “The economic burden of overweight and obesity in Brazil: perspectives for the Brazilian Unified Health System.” Public Health. [link]

Summary: This study estimated the economic burden of NCDs attributable to overweight and obesity in the SUS (Brazilian Unified Health System), using data from the 2019 National Health Survey and the SUS Hospital and Outpatient Information Systems. The relative risks for NCDs were retrieved from the Global Burden of Disease study. In parallel with the increase in the prevalence of obesity in Brazil, an increase in direct health costs related to Chronic Noncommunicable Diseases (NCDs) is expected. Overweight and obesity account for US$654 million (22%) of the direct costs of NCDs annually. Effective policies to promote healthy body weight can have economic benefits.

Castro, M. C., Kim, S., Barberia, L., Ribeiro, A. F., Gurzenda, S., Ribeiro, K. B., Abbott, E., Blossom, J., Rache, B., Singer, B. H. 2021. "Spatiotemporal pattern of COVID-19 spread in Brazil". Science. [link]

Summary: Using daily data on reported cases and deaths, this study measured and compared the spatial-temporal pattern of distribution between municipalities. Indicators of clustering, trajectories, speed and intensity of COVID-19 movement towards inland regions, combined with response rates, showed that while no single narrative explains diversity in spread, a general failure to implement an immediate, coordinated and equitable response, in the context of strong local inequalities, fueled the spread of the disease. This resulted in high and uneven rates of infection and mortality.

Rocha, R., Atun, R., Massuda, A., Rache, B., Spinola, P., Nunes, L., Lago, M., Castro, M. 2021. "The effect of socioeconomic inequalities and vulnerabilities on health system preparedness and response to COVID-19 in Brazil: A comprehensive analysis." The Lancet Global Health. [link]

Summary: This study analyzed the relationship between the level of preparedness of the health system, the response to COVID-19, and the pattern of the pandemic spread. A socioeconomic vulnerability index (SVI) was developed based on individual, household, and HDI characteristics. Descriptive statistics and correlations between state indicators were used to characterize the relationship between the availability of health resources and socioeconomic features, the spread of the pandemic, and the response of governments and the population in terms of new investments, legislation, and physical distancing. In Brazil, socioeconomic inequalities, rather than age, health status, and other risk factors for COVID-19, have affected the course of the pandemic, with a disproportionately adverse burden on the most vulnerable states and municipalities, where local government response and the behavior of the population helped to contain the effects of the epidemic.

Work in Progress

The Falling College Premium: The Role of Composition  (with Tomás Guanziroli and Ariadna Jou) [link]

Recent studies suggest that the increasing supply of college-educated workers in Latin American countries has negatively impacted returns to skill over the last two decades, as evidenced by the decreasing college premium. In this paper, we show that changes in the college premium do not accurately represent shifts in returns to skill, particularly in the context of a significant expansion in the number of college graduates and institutions. Using novel data with approximately one million college graduates from 20 different cohorts in Brazil, we find that returns to skill have not decreased; in fact, they increased by 24% over 16 years. The supply of college-educated workers has grown, primarily from newer, lower-ranked, and lower-wage-premium universities. Changes in the composition of college workers seem to have driven a decrease in the college premium, even though returns to skill are increasing. Using a simple supply and demand framework (Katz and Murphy, 1992) we show that skill-biased technical change (SBTC) increased by 3% per year over a 12-year period, in contrast to the apparent -0.1% yearly decrease indicated by the unadjusted data.

Transition towards cancer mortality predominance over cardiovascular disease mortality in Brazil, 2000-2019 (with Rudi Rocha, Luciana Medeiros, Letícia Okada, Gerson Ferrari, Hongmei Zeng, Alessandro Bigoni, Maria Paula Curado, Catarina Machado Azeredo, and Leandro F.M. Rezende)

An Assessment of the Health Regionalization Policy in Brazil (with Rudi Rocha and Leticia Nunes)

Abstract: Regionalization has been an organizing principle of the Unified Health System (SUS) since the Federal Constitution of 1988. Regionalization consists of organizing health services in groups of neighboring municipalities called health regions so that their residents can access services from a range of complexities in a hierarchical manner. After several federal regulatory attempts to enact this principle into practice, we analyzed data on healthcare services, hospital resources, and inter-municipal admission flows between 1998 and 2019 in order to assess whether there was a reorganization toward a more regional design. We estimated a simple gravitational model to better understand the dynamics of hospital flows in the country. Three sets of results seem consistent with an advance in regionalization in the first two decades of SUS: (i) greater availability of services, measured by the reduction of distances, signaling a redistribution of services over the territory; (ii) An increase in the inequality of ICU beds between municipalities in the same region, indicating greater specialization within health regions; (iii) A reallocation of hospital flows out of the municipality of residence and towards "hub" municipalities. However, it is not clear whether these patterns derive from the federal regulations or whether they may have arisen from other phenomena, such as economic growth and the dynamics of regional development experienced in the period.

Technical Notes and Reports*

* In Portuguese only
2022

2021

2020