What's behind her smile? A randomized evaluation of dental care vouchers and socioeconomic outcomes

Last registered on October 07, 2014

Pre-Trial

Trial Information

General Information

Title
What's behind her smile? A randomized evaluation of dental care vouchers and socioeconomic outcomes
RCT ID
AEARCTR-0000285
Initial registration date
October 07, 2014

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
October 07, 2014, 8:59 PM EDT

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Locations

Region

Primary Investigator

Affiliation
PUC-Chile

Other Primary Investigator(s)

Additional Trial Information

Status
On going
Start date
2011-02-01
End date
2014-12-31
Secondary IDs
Abstract
This project studies the socioeconomic impact of providing dental care services - mainly removable prostheses - to economically vulnerable individuals with a bad dental condition. These dental services are generally not provided by the Chilean public health system, and the private system is hardly affordable for them. Thus, we expect our intervention to palliate an important and neglected health need that, according to previous studies, may have a multidimentional impact in peopleĀ“s lives.
Outcomes that we expect to influence are, for example, those related with perception of oral health, self- esteem and labour market participation.
External Link(s)

Registration Citation

Citation
Gallego, Francisco. 2014. "What's behind her smile? A randomized evaluation of dental care vouchers and socioeconomic outcomes." AEA RCT Registry. October 07. https://doi.org/10.1257/rct.285
Former Citation
Gallego, Francisco and Francisco Gallego. 2014. "What's behind her smile? A randomized evaluation of dental care vouchers and socioeconomic outcomes." AEA RCT Registry. October 07. https://www.socialscienceregistry.org/trials/285/history/2859
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2011-03-01
Intervention End Date
2012-12-31

Primary Outcomes

Primary Outcomes (end points)
Key outcome variables are related to perception of oral health, self-esteem and labor market status. Regarding perception of oral health, we adminster the Oral Health Impact Profile (Slade, 1997). To address self-esteem, we use the Rosenberg Score (Rosenberg, 1954). Finally, labor market status may refer both to extensive margin indicators (employed versus non-employed, etc.) or to intensive margin indicators (hours worked, salaries, etc.).
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
The experimental design consists first in the conformation of a sample of eligible individuals. The intervention and eligibility requirements were announced in mass media, and interested individuals had a diagnosis examination performed by odontologists and answered socioeconomic questions. Second, focalization was done in order to reach the desired number of participants in the experiment. Third, the intervention was randomly assigned to individuals, previous stratification.
Experimental Design Details
Randomization Method
Randomization done in office by a computer
Randomization Unit
Individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
No clusters
Sample size: planned number of observations
799 individuals
Sample size (or number of clusters) by treatment arms
350 individuals in treatment group, 499 individuals in control group
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
No
Data Collection Complete
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials