Data Sheet 1_Participation in antimicrobial stewardship among intensive care unit nurses: a cross-sectional study based on the COM-B model.docx

Objective<p>This study aimed to investigate antimicrobial stewardship participation and its associated factors among intensive care unit (ICU) nurses based on the Capability, Opportunity, Motivation, and Behavior (COM-B) model.</p>Methods<p>A cross-sectional survey was conducted among ICU nurses from 11 hospitals across China in March 2026. Data on demographic and occupational characteristics were collected using a general information questionnaire.

Antimicrobial stewardship participation and its influencing factors were assessed using the ICU Nurses’ Participation in Antimicrobial Stewardship Behavior and Influencing Factors (ASP-BF) Scale, and nursing professional self-efficacy was measured using the Nursing Professional Self-Efficacy (NPSE) Scale.</p>Results<p>A total of 497 ICU nurses were included. The mean scores were 48.80 ± 9.86 for capability (possible range: 13–65), 38.42 ± 10.60 for opportunity (possible range: 11–55), 82.55 ± 16.86 for motivation (possible range: 23–115), 59.94 ± 13.57 for behavior (possible range: 16–80), and 29.60 ± 4.45 for NPSE (possible range: 7–35).