Towards the creation of a flexible classification scheme for voluntarily reported transfusion and laboratory safety events

Table 2 Laboratory report rates and time for report completion

Laboratory average reports per month	Inpatient	Outpatient	Homecare/Hospice
Pre-period (19 months)
Average number (± standard deviation)	29.1 ± 7.5	18.5 ± 5.8	0.2 ± 0.4
Post-period (15 months)
Average number (± standard deviation)	50.7 ± 9.6	41.5 ± 13.7	0.6 ± 0.6
P value	<0.0001^*	<0.0001^*	0.03
Minutes to submit a laboratory safety report ^†	Inpatient	Outpatient	Homecare/Hospice
Pre-period (19 months)
Median time in minutes (range)	9.13	11.15	19.03
Median time in minutes (range)	(1.93-52.82)	(2.67-58.98)	(8.7-30.9)
Post-period (15 months)
Median time in minutes (range)	10.27	11.12	11.9
Median time in minutes (range)	(1.87-56.73)	(2.32-56.93)	(5.37-17.63)
P value	<0.0001^††	0.9149	0.1655

Pre-period: April 1, 2008–November 9, 2009; Post-period: November 10, 2009-January 31, 2011.
*Significant difference based on t-test.
^†Excludes outliers ≥60 minutes (2.3% of reports).
^††Significant difference based on Wilcoxon rank-sum test.

ISSN: 2041-1480