Table 4.

Associations between clinically important report changes and characteristics of examinations, patients and readers

Variable	n	Logistic regression analysis
		Univariate			Multivariate (n=1055)
		OR	95% CI	p Value	OR	95% CI	p Value
Examination
Urgency (urgent referral* vs not†)	1071	2.0	1.3 to 3.1	0.001	1.6	1.0 to 2.5	0.05
Examination time (out of working hours‡ vs during†)	1071	1.8	1.3 to 2.6	0.001
Time of first reading (out of working hours‡ vs during†)	1055	1.6	1.1 to 2.3	0.01
Time of second reading (out of working hours‡ vs during†)	1061	0.8	0.5 to 1.3	0.4
Patient
Age (increase of 10 years)	1071	1.1	1.0 to 1.2	0.2
Gender (female vs male†)	1071	0.8	0.6 to 1.1	0.2
Admission status (inpatients vs outpatients†)	1071	1.8	1.1 to 2.9	0.03
First reader, gender (female vs male†)	1071	1.1	0.8 to 1.6	0.6
First reader subspecialty	1064			<0.001			0.001
Inexperienced consultant†	408	1.0			1.0
General radiologist	202	0.4	0.2 to 0.7	0.001	0.6	0.4 to 1.7	0.7
Abdominal radiologist	383	0.5	0.3 to 0.8	0.001	0.4	0.3 to 0.6	<0.001
Other subspecialty	71	1.0	0.5 to 1.9	0.9	1.1	0.6 to 2.2	0.7
Second reader, gender (female vs male†)	1071	1.0	0.7 to 1.4	0.9
Second reader subspecialty	1062			<0.001			0.002
Inexperienced consultant†	222	1.0			1.0
General radiologist	235	0.3	0.2 to 0.6	<0.001	0.3	0.2 to 0.7	0.002
Abdominal radiologist	535	0.8	0.6 to 1.3	0.4	1.1	0.7 to 1.7	0.7
Other subspecialty	70	0.2	0.1 to 0.6	0.01	0.2	0.1 to 0.8	0.02

*Urgent: Requested within 24 h.

†Reference in the logistic regression model.

‡Working hours: 7:00–16:00.