Abstract 15885: Acceptability of Urine Collections and Food Records for Dietary Sodium Intake Assessment in Patients With Heart Failure
Introduction: We recently showed that food records (FR), compared to the conventional gold standard 24-hour urine collections (UC), provide a better estimate of sodium intake in heart failure (HF) patients, particularly in those taking loop diuretics. In healthy subjects, each method is known to have several strengths and limitations; however no studies have examined issues related to feasibility and acceptability of these methods in patients with chronic HF. This is relevant since these concerns may impact the quality of data acquired.
Objective: To assess autonomy and preference with respect to the use of 24-hour UCs and FRs for the assessment of sodium intake in HF patients, and to determine if these factors impacted sodium intake measurements.
Methods: Non-HF cardiac patients (n=97, 75% male, 65±11 yrs) and HF patients (n=109, 74% male, 61±11 yrs) simultaneously completed a weighted FR and 24-hour UC for two consecutive days. Data on patient acceptability of the methods was collected upon completion of the 24-hour UCs and FRs.
Results: Compared to non-HF cardiac patients, more HF patients required assistance in completing FRs (22% versus 9%, p=0.01). Sodium excretion was similar among HF patients who did and did not require assistance with FRs (141±55 versus 132±55 mmol/d, p=0.49). However, there was a trend towards lower reported sodium intake in those needing assistance (2.7±1.1 versus 2.2±1.0 g/d, p=0.08), although caloric intake was similar. More non-HF patients preferred FRs (24% versus 15%), but more HF patients preferred 24-hour UCs (53% versus 41%)(p=0.04). Among the HF patients, females preferred FRs over 24-hour UCs (82% versus 56%, p=0.02). Mean reported (2.7±1.0 versus 2.7±1.2 g/d) and excreted sodium (143±57 versus 143±57 mmol/d) were similar regardless of method preference.
Conclusions: Compared to patients without HF, more HF patients required assistance with FRs, but this did not affect the quality of FR recording. Overall HF patients preferred the 24-hour UC method, although female patients reported preferring FRs. Importantly, we also found that sodium intake and excretion was similar regardless of patient preference towards one method, suggesting that method preference does not influence sodium intake estimation.
- © 2011 by American Heart Association, Inc.