Table 3.

Alarm Fatigue and Mental Workload according to General Characteristics (n = 90).

Characteristics	Category	Alarm Fatigue			Mental Workload
		Mean (SD)	t/F	p	Mean (SD)	t/F	p
Age(years)	24–29	28.53 (6.32)	−0.935	0.352	74.08 (12.29)	−0.612	0.542
	30–49	29.69 (5.15)			76.30 (17.31)
Gender	Male	29.22 (7.41)	0.102	0.919	72.59 (14.92)	−0.522	0.603
	Female	29.01 (5.70)			75.29 (14.69)
Education	BSN	28.73 (5.82)	−1.496	0.138	75.43 (14.82)	0.803	0.424
	MSN	31.78 (5.57)			72.28 (13.23)
Position	RN	28.98 (5.93)	−3.200	0.750	75.44 (14.39)	0.946	0.347
	CN	29.71 (4.96)			69.99 (17.89)
ICU type	SICU	28.91 (5.17)	2.551	0.061	73.84 (17.72)	1.092	0.357
	MICU	30.43 (5.61)			73.17 (13.42)
	CCU	29.58 (5.88)			81.67 (14.27)
	CPICU	25.94 (6.36)			75.88 (12.78)
Total ICU clinical Experience (years)	1~5	28.73 (6.14)	0.169	0.845	75.30 (12.70)	2.298	0.107
	5~10	29.55 (5.84)			70.32 (19.84)
	>10	29.33 (5.17)			80.42 (13.75)
Number of patients	2 patients	28.93 (5.92)	−0.373	0.710	73.90 (14.67)	−2.001	0.048 *
	>3 patients	29.57 (5.58)			82.32 (13.14)
Alarm management education	Yes	28.68 (6.04)	−0.933	0.354	74.41 (15.18)	−0.627	0.522
	No	29.96 (5.30)			76.59 (13.34)
Experience of alarm related accident	Yes	30.23 (6.46)	1.810	0.170	75.68 (14.41)	0.096	0.909
	No	26.75 (5.53)			73.64 (19.29)
	Heard that	29.14 (5.48)			75.12 (13.29)
Insight of Concept	Yes	31.10 (5.09)	2.438	0.017 *	73.91 (13.75)	0.504	0.615
	No	28.00 (5.96)			75.57 (15.17)

SD, standard deviation; BSN, bachelor science of nursing; MSN, master science of nursing; RN, registered nurse; CN, charged nurse; SICU, surgical intensive care unit; MICU, medical intensive care unit; CCU, coronary care unit; CPICU, cardiopulmonary intensive care unit; ECMO, extracorporeal membrane oxygenation; CCRT, continuous renal replacement therapy; IABP, intra-aortic balloon pump; NO gas, nitric oxide gas. * p < 0.05