摘要目的 检验新生儿口腔运动评估量表(neonatal oral-motor assessment scale,NOMAS)在临床应用中的测量学特性及测评时间对测评结果的影响,为早产儿口腔运动功能评估工具的选择及应用提供依据.方法 将91例早产儿最初2min的吸吮过程录制成录像,应用NOMAS对早产儿口腔吸吮运动进行评估.结果 NOMAS在早产儿胎龄＜35周具有良好的内部一致性;NOMAS评分与早产儿喂养效率在胎龄＜35周具有较好的相关性(正常吸吮r=0.58,吸吮紊乱r=-0.61);NOMAS对吸吮紊乱的反应度较低(SRM=0.02～0.49);测评时间30 s与测评时间2min的NOMAS评估结果不一致,前者的评分较高差异有统计学意义.结论 NOMAS在评估胎龄＜35周的早产儿中应用具有良好的信效度,测评时间以2min最为合适.

abstractsObjective To examine the psychometric characteristics of the Neonatal Oral-motor Assessment Scale (NOMAS) and the influence of evaluation time on assessment results of oral motor skills for preterm infants,and to provide advice for the application of oral-motor assessment in clinic practice.Methods Following Palmer's method,a video recording was made for the preterm infants at different age during the first 2 min of nutritive sucking(NS).We stored the recordings on a digital videodisc and two NOMAS assessors assessed each recording.Results The NOMAS had acceptable internal consistency for less than 35 weeks' PMA (postmenstrual age).Moderate correlation were found between scores on the NOMAS and feeding performance for less than 35 weeks' PMA (normal sucking r=0.58,sucking disorder r=-0.61).The NOMAS demonstrated low responsiveness to changes in oral-motor skill in a week period,ranging from 33 to 36 weeks' PMA (SRM=0.02～0.49).The NOMAS scores for evaluating 30 seconds and 2 minutes were not consistent,the former scores was higher.Conclusions The reliability and validity of NOMAS were acceptable in assessing the oral-motor function of preterm infants for less than 35 weeks' PMA.The evaluation time of NOMAS was suitable for 2 min.