| Variables | Categories | Attitude (sum score) | Crude unstandardized β coefficient (95% CI) | Adjusted unstandardized β coefficient (95% CI) |
| Sex | Male | 0 | 0 | Female | −2.52 (−4.09, −0.95) | −0.76 (−2.21, 1.30) | Academic qualification | Master’s | 0 | 0 | Bachelor’s | −2.57 (−4.31, −0.83) | −2.24 (−4.15, −0.34)∗ | Diploma | −7.07 (−9.63, −4.52) | −4.42 (−7.50, −1.34)∗∗ | Reading about PR in the past year | No | 0 | 0 | Yes | 1.20 (0.74, 1.66) | 0.61 (−1.14, 2.35) | Received training in a graduate class about PR | No | 0 | 0 | Yes | 5.71 (4.11, 7.30) | 2.90 (1.27, 4.53)∗∗ | Work experience in the ICU | >5 years | 0 | 0 | 2–5 years | 0.47 (−1.27, 2.20) | 0.44 (−1.52, 2.39) | <2 years | −3.58 (−5.19,−1.96) | −0.50 (−2.69, 1.68) | Work shift time | Regular day | 0 | 0 | Shift day or night | −2.15 (−3.81,−0.49) | −1.24 (−2.73, 0.26) | Shift day and night | −1.15 (−3.50, 1.19) | −0.91 (−2.99, 1.17) | Age of nurses | In years | 0.52 (0.29, 0.76) | 0.14 (−0.1, 0.35) | Knowledge | Total-score | 1.91 (1.55, 2.28) | 0.95 (0.49, 1.41)∗∗∗ |
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