National Center for Health Statistics data provides estimates of cholesterol levels for U.S. adults aged 20 and older. The dataset includes demographic breakdowns by characteristics like SUBGROUP and CLASSIFICATION. It was last updated in September 2025 from the National Health and Nutrition Examination Survey.
Use Cases
- Analyze cholesterol ESTIMATE trends across different TIME_PERIOD values for specific SUBGROUP categories.
- Model the relationship between demographic CLASSIFICATION and cholesterol ESTIMATE_UCI and ESTIMATE_LCI values.
- Compare STANDARD_ERROR and FLAG indicators across different SUBTOPIC categories to assess data reliability.
- Investigate cholesterol levels by nested demographic hierarchies using NESTING_LABEL and GROUP_ORDER fields.
Strengths
- Data originates from the authoritative National Health and Nutrition Examination Survey (NHANES).
- Includes 25 columns for detailed demographic and statistical breakdowns.
- Provides confidence intervals (ESTIMATE_UCI, ESTIMATE_LCI) and STANDARD_ERROR for statistical rigor.
Limitations
- Sample size (row count) and geographic granularity below state level are unknown.
- Data may have class imbalance if certain demographic SUBGROUPS are underrepresented.
- Relies on self-reported or measured survey data, which can introduce measurement bias.
Provenance
- Source
- National Center for Health Statistics, National Health and Nutrition Examination Survey (NHANES).
- Collection Method
- Survey data collected through the National Health and Nutrition Examination Survey.
- Time Range
- null
- Geography
- United States.