Table 1.

Sample quality by emergency laboratory delivery method.

Sample	Manual transport	Swisslog PTS	Tempus600 PTS	p
Serum tube (separation gel)
H	5.00 (4.25)	4.00 (3.25)	5.00 (5.00)	0.249
I	1.00 (1.00)	1.00 (1.00)	1.00 (1.00)	0.889
L	10.00 (15.00)	9.00 (11.75)	11.50 (15.25)	0.841
K3 EDTA tube
H	34.00 (18.25)	29.50 (14.50)	33.50 (16.50)	0.228
I	1.00 (0.00)	1.00 (0.00)	1.00 (0.00)	0.837
L	31.50 (33.50)	32.00 (27.50)	30.00 (28.75)	0.999
Coagulant tube (3.2 % sodium citrate)
H	4.00 (4.00)	4.00 (4.50)	5.50 (4.25)	0.236
I	1.00 (0.00)	1.00 (0.00)	1.00 (0.00)	0.692
L	15.00 (9.50)	15.00 (10.25)	16.00 (8.50)	0.908

Data are reported as median (interquartile range).

PTS, pneumatic tube system; H, hemolysis index; I, icteric index; L, lipemic index.