Study Overview
- Title:
- The Comprehensive Impacts of Receiving Cleft Surgery
- Study is 3ie funded:
- No
- Study ID:
- RIDIE-STUDY-ID-5a746bc0ec10c
- Initial Registration Date:
- 02/02/2018
- Last Update Date:
- 01/26/2018
- Study Status:
- Ongoing
- Location(s):
- India
- Abstract:
Cleft palate and cleft lip are birth defects in which the newborn has an aperture in the roof of the mouth and/or the upper lip. Left untreated, a cleft can lead to speech impediments, problems with eating, and an unsightly facial deformity. A sequence of simple, common surgical procedures can restore function with minimal scarring, but the social, educational, physical, and psychological impacts of receiving this surgery have not been rigorously evaluated. This study uses a difference-in-difference identification strategy with a household level fixed effect to compare teenage life outcomes with treated cleft lip and palate to the life outcomes of their nearest-age sibling, and then compares that difference to the difference between the teenage life outcomes of untreated cleft patients and those of their own nearest-age sibling. This strategy allows estimation of the impact of being born with a cleft, as well as the impact of receiving a full or partial course of reparative surgeries early in life. Key outcomes include measures of social integration, education and learning, psychological well-being, behavioral problems, levels of parental support, , and physical health.
- Registration Citation:
Wydick, B., 2018. The Comprehensive Impacts of Receiving Cleft Surgery. Registry for International Development for Impact Evaluations (RIDIE). Available at: 10.23846/ridie135
- Categories:
- Health, Nutrition, and Population
- Additional Keywords:
- Cleft Palate, Public Health, Reparative Surgery, India
- Secondary ID Number(s):
Principal Investigator(s)
- Name of First PI:
- Bruce Wydick
- Affiliation:
- University of San Francisco
- Name of Second PI:
- Affiliation:
Research Partner
- Name of Partner Institution:
- Mahatma Gandhi College of Medicine
- Type of Organization:
- Research institute/University
- Location:
- India
Intervention Overview
- Intervention:
Cleft palate and cleft lip surgery, performed on children either at birth or in teenage years.
- Theory of Change:
Left untreated, a cleft can lead to speech impediments, problems with eating, and an unsightly facial deformity. Cleft palate surgery allows patients to speak more clearly, to better process food, and reduces the stigma of the facial deformity. We believe better processing of food, especially in infancy, allows for better nutrition and subsequent physical strength and cognitive ability. The repair of the facial deformity should increase psychological health, social inclusion, attendance and school (which may be reduced by bullying), learning, and education.
- Multiple Treatment Arms Evaluated?
- No
Implementing Agency
- Name of Organization:
- Operation Smile
- Type of Organization:
- NGO (International)
Program Funder
- Name of Organization:
- Broad-based public funding from private individuals
- Type of Organization:
- Other
Intervention Timing
- Intervention or Program Started at time of Registration?
- Yes
- Start Date:
- 01/26/1990
- End Date:
Evaluation Method Overview
- Primary (or First) Evaluation Method:
- Difference in difference/fixed effects
- Other (not Listed) Method:
- Additional Evaluation Method (If Any):
- Other (not Listed) Method:
Method Details
- Details of Evaluation Approach:
We will use a difference-in-difference approach with household fixed effects that compares life outcomes from operated cleft children to their siblings and compares this difference to the difference between upoperated cleft children to their siblings. The sample of those who will make up our treatment group will come from a roster of 282 cleft patients that our partner organization, Operation Smile, previously treated in West Bengal, India between 2004-?-2015. Other treated patients will be those who have been operated on, but who appear at screening camps for further surgeries. Our control group will include siblings of cleft children without the cleft deformity. (See attached Pre-Analysis Plan for additional details.)
- Outcomes (Endpoints):
Key outcomes of interest include a range of indicators that measure social integration, education and learning, psychological well-being, behavioral problems, levels of parental support, and physical health. (See attached Pre-Analysis Plan for additional details.)
- Unit of Analysis:
- Main unit of analysis is the child relative to outcomes of siblings.
- Hypotheses:
See our attached Pre-Analysis Plan for additional details about hypotheses to be tested. We will test specific hypotheses about the impact of past cleft surgery on four families of outcomes: 1. Physical and Health Outcomes including speech clarity and general health; 2. Social Inclusion, Family Relationships, and Behavior; 3. Psychological Outcomes such as depression, self-esteem, aspirations, and hope; 4. Cognition, Education, and Learning.
- Unit of Intervention or Assignment:
- At the level of the individual child.
- Number of Clusters in Sample:
- Number of Individuals in Sample:
- 875
- Size of Treatment, Control, or Comparison Subsamples:
- 250 treatment, 625 Control
Supplementary Files
- Analysis Plan:
- Wydick_Pre-Analysis Plan_CleftSurgery_2018-1-26.pdf
- Other Documents:
Outcomes Data
- Description:
- Primary survey data administered by research team in India.
- Data Already Collected?
- Yes
- Data Previously Used?
- No
- Data Access:
- Not restricted - access with no requirements or minimal requirements (e.g. web registration)
- Data Obtained by the Study Researchers?
- Yes
- Data Approval Process:
- Approval Status:
Treatment Assignment Data
- Participation or Assignment Information:
- Yes
- Description:
- Data Obtained by the Study Researchers?
- Data Previously Used?
- Data Access:
- Data Obtained by the Study Researchers?
- Data Approval Process:
- Approval Status:
Data Analysis
- Data Analysis Status:
- No
Study Materials
- Upload Study Materials:
Registration Category
- Registration Category:
- Prospective, Category 3: Data for measuring impacts have been obtained/collected by the research team but analysis for this evaluation has not started
Completion Overview
- Intervention Completion Date:
- Data Collection Completion Date:
- Unit of Analysis:
- Clusters in Final Sample:
- Total Observations in Final Sample:
- Size of Treatment, Control, or Comparison Subsamples:
Findings
- Preliminary Report:
- Preliminary Report URL:
- Summary of Findings:
- Paper:
- Paper Summary:
- Paper Citation:
Data Availability
- Data Availability (Primary Data):
- Date of Data Availability:
- Data URL or Contact:
- Access procedure:
Other Materials
- Survey:
- Survey Instrument Links or Contact:
- Program Files:
- Program Files Links or Contact:
- External Link:
- External Link Description:
- Description of Changes:
Study Stopped
- Date:
- Reason: