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
Last updated
October 07, 2014 8:59 PM EDT
Location(s)
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://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
Intervention
Is the intervention completed?
No
Is data collection complete?
Data Publication
Data Publication
Is public data available?
No
Program Files
Program Files
Reports and Papers
Preliminary Reports
Relevant Papers