On this page: About the National Data | Methodology | History
About the National Data
Data
Data Source: National Health Interview Survey (NHIS), CDC/NCHS
Baseline: 66.5 percent of children aged 3 to 5 years received vision screening in 2017
Target: 71.1 percent
Methodology
Questions used to obtain the national baseline data
From the 2017 National Health Interview Survey Vision Supplement:
Numerator and Denominator:
Has [child's name] EVER had [his/her] vision tested by a doctor or other health professional?- Yes
- No
- Refused
- Don't know
Methodology notes
All children who were reported to have ever had their vision tested by a doctor or other health professional (as a response of "yes" to the Numerator question) were considered to have met the criteria for this objective.
History
1. Effect size h=0.1 was chosen to correspond with 10% improvement from a baseline of 50%.