Barriers to Safe Oxygen Therapy and the Effect of the Training on the Knowledge and Performance of ICU Nurses

Table 6

Comparison of the average knowledge, performance, and total score of oxygen therapy between intervention and control groups in the three-time of the study.

Variables		Group			CI, 95%
		Intervention group mean ± SD	Control group mean ± SD	value	Lower	Upper
Knowledge (0–30)	Before	20.10 ± 2.59	20.47 ± 2.34	0.512	−1.495	0.752
	After-1 month	24.41 ± 2.06	20.29 ± 2.24	< 0.0001	3.144	5.098
	After-3 months	22.13 ± 2.76	20.24 ± 2.33	0.002	0.729	3.053
Practice (0–24)	Before	18.03 ± 1.67	18.58 ± 1.50	0.132	−1.276	0.170
	After-1 month	21.54 ± 1.46	18.05 ± 1.08	< 0.0001	2.898	4.073
	After-3 months	19.74 ± 1.51	18.63 ± 1.61	0.003	0.400	1.824
Total (0–54)	Before	38.13 ± 3.98	39.05 ± 3.62	0.291	−2.656	0.807
	After-1 month	45.95 ± 2.87	38.34 ± 2.93	< 0.0001	6.288	8.925
	After-3 months	41.87 ± 3.76	38.87 ± 3.30	< 0.0001	1.394	4.613

SD: standard deviation, CI: confidence interval.