Impact of anthropometric measurements variability on nutritional status classification in a pediatric quality...

Area of Science:

• Pediatric Nutrition
• Quality Improvement in Healthcare
• Anthropometric Measurement Accuracy

Background:

• Inaccurate anthropometric measurements can significantly affect the assessment of nutritional status in pediatric patients.
• Standardized anthropometric data collection is crucial for accurate health assessments in hospitalized children.

Purpose of the Study:

• To evaluate the impact of a quality improvement (QI) project on the accuracy and frequency of anthropometric measurements in hospitalized pediatric patients.
• To quantify changes in repeat anthropometric measurements and their effect on nutritional status classification post-QI implementation.

Main Methods:

• A comparative analysis of inpatient encounters from January-April 2016 (pre-QI) and January-April 2019 (post-QI) for patients aged 2-18 years.
• Quantified the frequency of repeat anthropometrics (weight, height, BMI) within 26 hours post-admission and reviewed extreme Z-scores for measurement errors.
• Utilized Body Mass Index (BMI) Z-score for nutritional status classification and assessed changes in classification accuracy.

Main Results:

• The frequency of repeat weight measurements decreased post-QI (97.7% to 83.0%), while repeat BMI measurements significantly increased (17.9% to 53.6%).
• Repeat measurements were more likely to influence nutritional status classification post-QI (8.9% vs. 2.4%).
• Errors contributing to extreme anthropometric Z-scores were rare, indicating overall reliable measurements.

Conclusions:

• The QI project led to increased repeat BMI measurements but a decrease in repeat weight documentation among hospitalized pediatric patients.
• The enhanced frequency of repeat measurements, particularly BMI, had a greater impact on nutritional status classification post-QI implementation.