Table 5.

Interaction analysis of factors associated with oxygen therapy knowledge

Variable	Adjusted OR	95% CI	P
Gender (male vs female)	1.7	1.2 to 2.5	0.01*
Experience (>5 yrs vs ≤5 yrs)	1.3	0.9 to 2.1	0.15
Department (clinical vs nonclinical)	1.5	1.0 to 2.2	0.05
Familiarity with devices (yes vs no)	2.1	1.5 to 3.0	<0.001**
Workload perception (yes vs no)	1.8	1.2 to 2.8	0.01*
Gender x experience	3.1	1.8 to 5.4	<0.001**
Department x familiarity	0.9	0.5 to 1.5	0.65
Experience x workload	1.3	0.7 to 2.3	0.42

P<0.05—significant*, P<0.001—highly significant **