Table 4.

Indicative amounts of PGE₁ degradation product PGA₁ over time in 10% dextrose injection solution stored in UPL and LS2 polypropylene syringes at 30°C

PGE1 concentration	Time	Percentage PGA1 detected
		Syringe type
		UPL		LS2
		Mean	IC95%	Mean	IC95%	p Value
1.5 µg/mL	T0	1.8	(1.8 to 1.8)	2.0	(1.9 to 2.1)	0.03
	24 hours	1.9	(1.9 to 1.9)	2.3	(2.2 to 2.4)	0.03
	48 hours	2.0	(1.8 to 2.2)	2.5	(2.2 to 2.8)	0.03
	72 hours	2.2	(2.1 to 2.3)	2.8	(2.5 to 3.1)	0.03
	168 hours	2.9	(2.6 to 3.2)	3.9	(3.3 to 4.5)	0.03
15 µg/mL	T0	1.8	(1.8 to 1.8)	1.9	(1.5 to 2.3)	0.46
	24 hours	2.0	(1.9 to 2.1)	1.9	(1.5 to 2.3)	0.75
	48 hours	2.2	(2.1 to 2.3)	2.1	(1.5 to 2.7)	0.75
	72 hours	2.5	(2.4 to 2.6)	2.4	(1.9 to 2.9)	0.46
	168 hours	3.7	(3.6 to 3.8)	3.5	(2.7 to 4.3)	0.46

LS, light-shielded; PGE₁, prostaglandin E₁; UPL, unprotected from light.