Details

Autor(en) / Beteiligte

• Hilner, Joan E.
• McDonald, Arline
• Horn, Linda Van
• Bragg, Charlotte
• Caan, Bette
• Slattery, Martha L.
• Birch, Robert
• Smoak, Carey G.
• Wittes, Janet

Titel

Quality control of dietary data collection in the CARDIA study

Ist Teil von

• Controlled clinical trials, 1992-04, Vol.13 (2), p.156-169

Ort / Verlag

United States: Elsevier Inc

Erscheinungsjahr

1992

Link zum Volltext

Quelle

Elsevier Journal Backfiles on ScienceDirect (DFG Nationallizenzen)

Beschreibungen/Notizen

• The Coronary Artery Risk Development in (Young) Adults (CARDIA) Study developed and implemented quality control (QC) measures to minimize misclassification associated with dietary data. Manual and automated data inspection were used to monitor quality. Of the 5111 participants who completed a dietary history, 717 914%) had dietary forms reviewed and 153 (3%) had the interview audiotaped. Results show that for the 717 forms reviewed, the overall form completion error rate was 0.22% and the “critical” error rate (i.e., those errors impacting on nutrient computations) was 0.12%. The proportion of forms free of any type of error increased over time ( p<0.0001). The discrepancy rate in recording and interviewing methods as estimated from the 153 audiotaped interviews was 0.7%. Inter-interviewer differences were small as indicated by the audiotaped interviews and the proportion of error-free forms completed by interviewers. The results indicate that the dietary data collected in CARDIA were completely and accurately recorded for use in analysis.