Table 2.

Reported error or related problems regarding reconstituted vaccines by profession.

Errors	Physician (n = 250)	Nurse (n = 450)	p-Value
Experienced an error related to reconstituted vaccines, n (%)
Yes	191 (76.4)	187 (41.5)	<0.0001
No	37 (14.8)	170 (37.8)
Uncertain	22 (8.8)	93 (20.7)
Type of error, n (%) (multiple selections)
Inadequate shaking of vaccine	129 (51.6)	86 (19.1)	-
Incomplete aspiration of the reconstitution vial	130 (52.0)	66 (14.7)
Spillage or leakage during reconstitution	106 (42.4)	66 (14.7)
Needle twisted when inserted in vial stopper	74 (29.6)	53 (11.8)
Same needle used for reconstitution and injection	58 (23.2)	45 (10.0)
Forgetting to reconstitute the vaccine	48 (19.2)	34 (7.6)
Loss of equipment for reconstitution	40 (16.0)	28 (6.2)
Reconstitution with incorrect diluent	39 (15.6)	22 (4.9)
Frequency of an error occurring, n (%)
Never	22 (8.8)	219 (48.7)	<0.0001
<one in 1000 vaccinations	52 (20.8)	78 (17.3)
One in 1000 vaccinations	27 (10.8)	41 (9.1)
One in 500 vaccinations	48 (19.2)	35 (7.8)
One in 100 vaccinations	72 (28.8)	43 (9.6)
>one in 100 vaccinations	29 (11.6)	34 (7.6)
Cause of error, n (%) (multiple selections)
Being less careful because of overall workload	132 (57.5)	59 (25.5)	-
Having insufficient time to prepare the vaccine	77 (33.8)	98 (42.4)
Paying less attention to complete dissolution	77 (33.8)	63 (27.3)
Having complex process in preparing of the vaccine	62 (27.2)	103 (44.6)
Frequency of preparation of new vaccine when an error occurs, n * (%)	228 (100.0)	231 (100.0)
Never	67 (29.4)	57 (24.7)	0.1193
25% of the time	37 (16.2)	28 (12.1)
50% of the time	14 (6.1)	10 (4.3)
75% of the time	6 (2.6)	14 (6.1)
Always	104 (45.6)	122 (52.8)

n *: number of respondents who experienced an error.