Abstract: Objective: To translate and revise the Theory of Planned Behaviour questionnaire to assess critical care nurses' intention to use physical restraints in intubated patients (PR-TPB) into Chinese, then to assess the reliability and validity of the Chinese version of PR-TPB. Methods: The Brislin translation model was used for literal translation and back translation. Six experts were invited to revise the translated scale and evaluate the content validity. Totally 485 critical care nurses from three tertiary grade A general hospitals in Hangzhou were recruited and investigated using general information questionnaire and the Chinese version of PR-TPB by convenient sampling, and its reliability and validity were assessed. Results: The Chinese version of PR-TPB included 4 subscales and 35 items in total. Four common factors were extracted by exploratory factor analysis, and the cumulative variance contribution rate was 65.536%. The I-CVI was 0.83-1.00 and the S-CVI was 0.90. Cronbach's α coefficient was 0.826, 0.934, 0.876 and 0.501 respectively, and the test-retest reliability was 0.935, 0.940, 0.925 and 0.926 respectively (P<0.01). Conclusion: The Chinese version of PR-TPB has good reliability and validity, which can be used as a tool to assess critical care nurses’ intention to use physical restraints in intubated patients.

Key words: physical restraints; Intensive Care Unit; nurse; Theory of Planned Behaviour; reliability; validity