Table 1.

Comparing quality control indicators before and after intervention.

Group	Positivity (%)	Contamination rate (%)	Disqualification rate (%)	Adult blood culture 2–3 sets per episode rate (%)	Rate of correct timing (%)	Correct processing rate (%)
After intervention	9.9 (666/6,720)	0.9 (58/6,720)	1.3 (167/12,435)	97.7 (2,817/2,882)	98.7 (473/479)	98.1 (470/479)
Before intervention	8.6 (557/6,494)	1.4 (93/6,494)	1.7 (203/12,141)	97.7 (2,788/2,853)	89.6 (397/443)	92.3 (409/443)
p-value	0.008	0.002	0.034	0.95	<0.001	<0.001

p-value derived from chi-square test between the before and after intervention group.