To develop the perioperative missed nursing care scale and to test its reliability and validity.

The initial version of the perioperative missed nursing care scale was developed through literature review and qualitative interviews.The scale was revised by Delphi expert consultations and a pre-survey.A total of 754 operating room nurses from 22 provinces,autonomous regions,and municipalities in China were selected as survey subjects.The reliability and validity of the scale were tested.

The questionnaire response rates for the two rounds of expert consultations were 100.0% and 94.4%,respectively.The expert authority coefficients were 0.911 and 0.935,respectively.Kendall's W coefficients for subscale A were 0.279 and 0.295(both P<0.001).Kendall's W coefficients for subscale B were 0.220 and 0.185(both P<0.001).Exploratory factor analysis extracted four common factors each for both subscale A and subscale B,with cumulative variance contribution rates of 76.41% and 75.71%,respectively.Confirmatory factor analysis results showed that all fit indices were within acceptable ranges.For subscale A,the average variance extracted values for the four dimensions ranged from 0.430 to 0.529,and composite reliability values ranged from 0.880 to 0.966.For subscale B,the average variance extracted values for the four dimensions ranged from 0.519 to 0.700,and composite reliability values ranged from 0.873 to 0.972.The item-level content validity index (I-CVI) for the perioperative missed nursing care scale ranged from 0.857 to 1.000.The scale-level content validity index(S-CVI) was 0.914.The overall Cronbach's α coefficient for the scale was 0.967.The Cronbach's α coefficients for the dimensions of subscale A ranged from 0.885 to 0.965.The Cronbach's α coefficients for the dimensions of subscale B ranged from 0.866 to 0.972.The overall split-half reliability was 0.924 for subscale A and 0.898 for subscale B.

The perioperative missed nursing care scale demonstrates scientific rigor and practical utility.It could be used to assess missed nursing care items and their causes in the perioperative period.