NHANES Urine Albumin-Creatinine Ratio Variability in U.S. Adults, 2009-2010

Supplementary Material for a study analyzing predictors of short-term variability in urine albumin-to-creatinine ratio (ACR) within the general U.S. adult population. The dataset is based on a cross-sectional analysis of 4,829 adults from the 2009-2010 United States National Health and Nutrition Examination Survey who provided two urine samples within 10 days. It was authored by figshare admin karger and last updated on 2026-06-01.

Use Cases

• Modeling predictors of biomarker variability based on age, sex, and initial ACR severity mentioned in the description.
• Assessing reclassification rates between albuminuria categories based on repeat measurements.
• Calculating reference change values for urine ACR within clinical subgroups.
• Evaluating the clinical implications of longitudinal ACR trends versus single measurements.

Strengths

• Based on a large, generalizable sample of 4,829 U.S. adults.
• Includes paired urine samples collected within a short (10-day) timeframe.
• Analysis is grounded in a well-established national survey (NHANES).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect temporal bias inherent to the 2009-2010 collection period.

Provenance

Source

2009-2010 United States National Health and Nutrition Examination Survey (NHANES).

Collection Method

Cross-sectional analysis of participants who provided two urine samples within 10 days.

Time Range

2009-2010

Freshness

Last updated 2026-06-01 07:16:15; freshness should be verified.

Geography

United States