Chookalayi Hoda, Heidarzadeh Mehdi, Hasanpour Mohammad, Jabrailzadeh Sajjad, Sadeghpour Fatemeh
Department of Critical Care Nursing, School of Nursing and Midwifery, Ardabil University of Medical Sciences, Ardabil, Iran.
Department of Anesthesiology, Hospital of Imam Khomeini, Ardabil University of Medical Sciences, Ardabil, Iran.
Indian J Crit Care Med. 2017 Jul;21(7):429-435. doi: 10.4103/ijccm.IJCCM_114_17.
The nonverbal pain scale is one of the instruments which study pain in nonverbal-ventilated patients with regard to the changes of behavioral and physiological indices. The purpose of the study is to survey the psychometric properties of revised-nonverbal pain scale (R-NVPS) and original-nonverbal pain scale (O-NVPS) in ventilated patients hospitalized in critical care units.
Four nurses studied pain in sixty patients hospitalized in trauma, medical, neurology, and surgical critical care units using R-NVPS and O-NVPS at six times (before, during, and after nociceptive and nonnociceptive procedures). The test was repeated in 37 patients after 8-12 h.
Cronbach's alpha coefficient for R-NVPS and O-NVPS was 0.8 and 0.76, respectively. The inter-rater correlation coefficient during different times was = 0.89-0.96 for R-NVPS and = 0.80-0.87 for O-NVPS. Test-retest correlation coefficient for R-NVPS and O-NVPS was = 0.55-0.86 and = 0.51-0.75, respectively. The meaningful difference in pain score between nociceptive and nonnociceptive procedures ( < 0.001) and a higher pain score in patients who confirmed pain ( < 0.001) showed a discriminant and criterion validity for both scales of NVPS, respectively.
R-NVPS and O-NVPS can both be used as valid and reliable scales in studying pain in ventilated patient. However, in comparing the items, "respiration" (R-NVPS) had a higher sensitivity than "physiology II" (O-NVPS) in assessing pain.
非言语疼痛量表是通过行为和生理指标变化来研究非言语通气患者疼痛情况的工具之一。本研究旨在调查修订后的非言语疼痛量表（R-NVPS）和原始非言语疼痛量表（O-NVPS）在重症监护病房住院通气患者中的心理测量特性。
四名护士使用R-NVPS和O-NVPS在六个时间点（伤害性和非伤害性操作前、操作期间和操作后）对60名入住创伤、内科、神经科和外科重症监护病房的患者进行疼痛评估。8-12小时后，对37名患者重复进行测试。
R-NVPS和O-NVPS的Cronbach's α系数分别为0.8和0.76。不同时间的评分者间相关系数，R-NVPS为0.89-0.96，O-NVPS为0.80-0.87。R-NVPS和O-NVPS的重测相关系数分别为0.55-0.86和0.51-0.75。伤害性和非伤害性操作之间疼痛评分的显著差异（P<0.001）以及确认疼痛患者的较高疼痛评分（P<0.001）分别显示了两种NVPS量表的区分效度和效标效度。
R-NVPS和O-NVPS均可作为研究通气患者疼痛的有效且可靠的量表。然而，在比较项目时，“呼吸”（R-NVPS）在评估疼痛方面比“生理II”（O-NVPS）具有更高的敏感性。
