Interrater Reliability and Concurrent Validity of the Neonatal Eating Outcome Assessment

Item-Level Psychometrics of the Neonatal Eating Outcome Assessment in Orally Feeding Infants

BACKGROUND

The Neonatal Eating Outcome Assessment determines feeding performance based on the infant's postmenstrual age (PMA).

OBJECTIVE

To examine item-level measurement properties of this assessment's rating scale.

METHODOLOGY

In this retrospective study, Rasch analysis was completed on clinical data from the Neonatal Eating Outcome Assessment for 100 infants (52 preterm and 48 full-term) using Winsteps version 3.93.1. Instead of PMA-based scores, ordered letters converted to numerical scores were analyzed.

RESULTS

Analysis demonstrated that Section I (Pre-Feeding Skills) represents a separate construct from Sections II and III (Oral Feeding and End of Feeding, respectively). Sections II and III were adequately unidimensional to complete Rasch analysis. These sections fit the Rasch model overall, but rating scale category underuse was common, which may be attributed to sample characteristics.

IMPLICATIONS

This analysis supports using validated ordered letter scoring of Sections II and III to measure oral feeding performance in preterm and full-term newborns.

Instrument for classifying dependency in neonatal intensive care: analysis of agreement and reliability

OBJECTIVE

to analyze the reliability of the items that compose the instrument for classifying newborns according to the degree of dependence on nursing care in a neonatal intensive care unit.

METHOD

methodological study that analyzed the agreement and reliability of the instrument in a neonatal intensive care unit. Six care nurses and a research nurse assessed 35 newborns and completed the instrument, which was made up of 15 areas of care. The weighted Kappa coefficient and the Intraclass Correlation Coefficient were used for analysis.

RESULTS

the areas of: weight (92%), oxygenation (93%) and catheter control (95%) had almost perfect agreement and the area of reaction to stimuli (50%) had poor agreement. The areas of elimination and vital signs showed low reliability, due to the low variability of responses. The Intraclass Correlation Coefficient was 0.94.

CONCLUSION

there are variations in the evaluations of some areas of care due to the imprecise description of items to which scores are assigned, however the instrument is reliable for categorizing the type of care (minimal, intermediate and intensive). Its use can contribute to measuring the quality and safety of newborn care.

Relationships between preterm medical factors and feeding behaviors at term-equivalent age

AIM

To identify relationships between early medical factors and preterm infant feeding behaviors at term-equivalent age.

METHODS

Forty-three very preterm infants born ≤32 weeks gestation had standardized feeding assessments using the Neonatal Eating Outcome Assessment at term-equivalent age (36-42 weeks postmenstrual age). Medical factors were collected and analyses were run to determine if associations between different medical factors and feeding performance exist.

RESULTS

Lower Neonatal Eating Outcome Assessment scores at term-equivalent age were associated with lower estimated gestational age (p < .01), lower birthweight (p < .01), older postmenstrual age at discharge (p < .01), longer length of stay in the neonatal intensive care unit (p < .01), chronic lung disease (p = .03), as well as more days on total parenteral nutrition (p = .03), endotracheal intubation (p < .01), and noninvasive mechanical ventilation (p < .01).

CONCLUSION

More feeding problems are observed in infants born earlier, with longer hospital stays, and with complex medical courses. Knowledge of the association between these medical factors and feeding difficulties allows for identification of infants who may benefit from early, targeted interventions to optimize the feeding process.

Associations between feeding and development in preterm infants in the NICU and throughout the first year of life

BACKGROUND

There is little published evidence regarding associations between feeding and development in preterm infants which could help identify infants most needing follow-up services.

AIMS

To determine if preterm infant feeding and development were predictable throughout the first year of life and identify associations with maternal factors, neonatal factors, and socioeconomic measures.

STUDY DESIGN

Prospective single-site study of the feeding and development of extremely and very preterm infants at three time points throughout the first year of life.

SUBJECTS

Infants <32 weeks gestational age were followed from neonatal intensive care unit (NICU) discharge (DC) until 12 months corrected gestational age (CGA).

OUTCOME MEASURES

Feeding and development were evaluated at NICU DC, 3 months and 12 months CGA. Maternal health, infant health, and socioeconomic measures were also recorded.

RESULTS

Significant differences were found between assessments for feeding and development at each of the three time points: NICU DC (p = 0.026), 3 months CGA (p = 0.001), and 12 months CGA (p = 0.000); however, no associations were found between feeding and development at NICU DC and 12 months CGA (p = 0.137). Of the maternal factors determined to be significant, none were consistent enough as to be considered relevant.

CONCLUSIONS

This study demonstrated that preterm infants with typical feeding and development at DC may go on to develop concerns in these areas, and those who scored abnormally at DC may perform typically during the first year of life. This study affirms the importance of NICU follow-up services to support feeding and development for all infants born <32 weeks gestation.

Neonatal feeding performance is related to feeding outcomes in childhood

AIM

Define relationships of early feeding performance with feeding outcomes in childhood, while assessing the predictive validity of the Neonatal Eating Outcome Assessment.

STUDY DESIGN

Ninety-one infants (44 preterm infants born ≤32 weeks at term-equivalent age and 47 full-term infants within 4 days of life) had feeding evaluated using the Neonatal Eating Outcome Assessment and the Neonatal Oral Motor Assessment Scale (NOMAS). At 4 years of age, 39 of these infants (22 preterm infants and 17 full-term infants; 43% follow-up rate) had parent-report measures of feeding conducted using the Behavioral Pediatrics Feeding Assessment Scale (BPFAS) and Pediatric Eating Assessment Tool (PediEAT).

RESULTS

Lower Neonatal Eating Outcome Assessment scores were related to higher PediEAT scores (p = 0.01; r = -0.44), but were not related to BPFAS scores (p = 0.17; r = -0.23). Relationships were not detected between the NOMAS and BPFAS (p = 0.35; r = 0.17), and relationships between the NOMAS and PediEAT failed to reach significance (p = 0.06; r = 0.34). There was a relationship between the BPFAS and PediEAT scores at 4 years (p < 0.001; r = 0.66). Preterm infants performed poorer than full-term infants on the Neonatal Eating Outcome Assessment (p < 0.001) and NOMAS (p < 0.001), but no differences were detected in preterm compared to full-term performance on the BPFAS (p = 0.87) and PediEAT scores (p = 0.27).

DISCUSSION

Neonatal feeding performance is an important predictor of feeding outcomes at 4 years of age. The Neonatal Eating Outcome Assessment has predictive validity, and the Pediatric Eating Assessment Tool has concurrent validity with relationships to another childhood feeding tool.

Preterm infant feeding performance at term equivalent age differs from that of full-term infants

OBJECTIVE

To identify differences in feeding skill performance among preterm infants at term equivalent age compared with full-term infants.

STUDY DESIGN

Ninety-two infants (44 preterm infants born ≤32 weeks gestation at term equivalent age and 48 full-term infants within 4 days of birth) had a standardized oral feeding assessment.

RESULT

Preterm infants at term equivalent age had lower Neonatal Eating Outcome Assessment scores (67.8 ± 13.6 compared with 82.2 ± 8.1; p < 0.001) and were more likely to have poor arousal (p = 0.04), poor tongue positioning (p = 0.04), suck-swallow-breathe discoordination (p < 0.001), inadequate sucking bursts (p = 0.01), tonal abnormalities (p < 0.001), discoordination of the jaw and tongue during sucking (p < 0.001), lack of positive engagement with the feeder and/or discomfort (p < 0.001), signs of aspiration (p < 0.001), difficulty regulating breathing (p < 0.001), and have an inability to maintain an appropriate state (p < 0.001), and complete the feeding (<0.001).

CONCLUSION

A broad range of feeding-related difficulties appear to remain evident in preterm infants at term equivalent age.