Table 2. Quality indicators of the Neonatal Screening Referral Service of Mato Grosso, from 2011 to 2019, in relation to the time of collection and arrival of samples at the screening service, time between the arrival of samples at the service and release of results and return of recalled samples.

Years	Days between sample collection and arrival at the NSRS-MT	Days between sample arrival at NSRS-MT and result release	Time between 2nd sample request and arrival at NSRS-MT (days)
2005	12.5	14.8	72
2006	21	9	30
2007	10.3	5.6	16.2
2008	10	5	24
2009	10.8	7.6	37
2010	8	11	78
2011	8.5	8.5	104
2012	7	9	97
2013	5.2	8.2	86
2014	5.2	8.6	73.5
2015	5.1	9.1	58.1
2016	5.1	10.8	65.1
2017	5.5	25.8	64.8
2018	5.8	9.4	36.7
2019	6.6	19.1	35.9
Mean ± SD (median)	8.4 ± 4.1 (7)	10.8 ± 5.2 (9)	58.5 ± 26.4 (64.8)

NSRS-MT: Neonatal Screening Referral Service of Mato Grosso; SD: standard deviation.