Table 3.

Changes in SpO₂ targeting limits introduced in European NICUs in the last 10 years

Lower limit	Upper limit
	Increased	Maintained	Decreased
Increased	n = 77 (40%)	n = 28 (15%)	n = 13 (7%)
	L: 90 (85–92)	L: 90 (85–92)	L: 88 (86–94)
	U: 95 (92–97)	U: 95 (92–96)	U: 95 (92–99)
Maintained	n = 3 (2%)	n = 37 (23%)	n = 4 (2%)
	L: 88 (85–88)	L: 88 (83–93)	L: 90 (88–90)
	U: 95 (90–96)	U: 95 (90–98)	U: 95 (92–96)
Decreased	0	n = 1 (1%)	n = 30 (16%)
		L: 85	L: 88 (82–92)
		U: 93	U: 94.5 (92–97)

n = number of centers (%). The number after L and U represents the median (range) of the current SpO₂ targeting limit. For example, 77 centers have increased both the lower and the upper SpO₂ targeting limit in the last 10 years. These 77 centers currently used a median lower limit of 90% (range 85–92) and a median upper limit of 95% (range 92–97)

L lower limit, U upper limit